Tempest

What Tempest does

Tempest (legal entity WeatherFlow-Tempest, Inc.) is a U.S.-based weather intelligence company that operates the world's largest private consumer-grade weather observation network and sells hyperlocal forecasting products to consumers, utilities, broadcasters, emergency management agencies, and government customers. The company was established as an independent entity in 2019 when it spun out from WeatherFlow, and is headquartered in Daytona Beach, Florida with team members distributed across eight U.S. states.

The company's product portfolio is anchored on the Tempest Weather System, a $329 home weather station with no moving parts that reports 15+ measurements (temperature, wind, rain, lightning, UV index) and feeds a mobile app, a public personal webpage, and a developer API. Underlying forecasting is the patented Nearcast AI technology, which ingests real-time data from 80,000+ Tempest stations, supplemented by satellites, radars, and government surface networks, and runs proprietary high-resolution numerical weather models trained with AI to produce point-specific forecasts. The enterprise offering is sold as TempestOne, a B2B platform serving utilities (including a newly launched wildfire risk tool), broadcasters, fire departments, and government agencies; the company also operates six vertical-specific lifestyle apps (iKitesurf, iWindsurf, SailFlow, WindAlert, FishWeather, HeatAlert) and a Tempest Cam Ring integration.

Tempest's revenue model blends hardware sales (one-time $329 station purchases), consumer app PRO subscriptions, enterprise TempestOne ARR (greater than 25% of 2022 revenue and growing), data licensing, and partnership-driven cross-selling (most notably through the WeatherBug app's 15M monthly users). The company has reached 125,000+ paying customers and 5 million users, posted $12.2M in FY2023 revenue (30%+ growth), and has been slightly profitable since Q2 2023. Distribution is primarily direct-to-consumer via shop.tempest.earth, supplemented by an ambassador/affiliate program, broadcast media partnerships, smart home integrations (Rachio, Alexa, Google Assistant, IFTTT, SmartThings), and direct enterprise sales for TempestOne.

Name

Tempest

Legal name

WeatherFlow-Tempest, Incorporated

Website

https://tempest.earth

Company type

Private

Founded year

2019

Operating status

Operating

Headcount range

51–100 employees

Short description

Tempest (WeatherFlow-Tempest) provides hyperlocal weather intelligence via a network of 80,000+ stations, patented Nearcast AI forecasting, and a $329 home weather station, serving consumers, utilities, broadcasters, emergency management, and government with hardware, enterprise software, and data licensing.

Ownership category

akta.pro rank

Product category

Weather Data and Decision Support

akta.pro primary industry

Real-Time Monitoring & Smart Stormwater (Sensors, SCADA/IoT, RTC) (EUANAEAK)

akta.pro secondary industry

Flood Risk Modeling, Mapping & Forecasting (Hydrology/Hydraulics, Digital Twins) (EUANAEAH)

Keywords

• Weather data services
• Hyperlocal weather forecasting
• Home weather stations
• Weather observation networks
• Enterprise weather intelligence

Headquarters

HQ city

Daytona Beach

HQ country

United States

HQ region

North America

Offices3 records

Markets served

GTM type

B2B and B2C

Offering type

Software

Cost components

Personnel, Technology or R&D, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Tempest Home Weather Station Hardware Sales: One-time sale of Tempest weather station hardware to consumers and commercial users. Station priced at $329 for consumer direct purchase. No subscription required for basic weather data access.辅底收入来源之一.
2. B2B / Professional Subscriptions (TempestOne): Recurring subscription revenue from TempestOne platform sold to enterprise and government clients in utilities, emergency management, media, transportation, and sustainability sectors. More than 25% of total revenue derived from annual recurring revenue as of 2022. Growing ARR percentage year over year.
3. Consumer Lifestyle App Subscriptions: Lifestyle apps (iKitesurf, iWindsurf, SailFlow, WindAlert, FishWeather, HeatAlert) offer premium tiers with PRO forecasts and additional features. Mobile apps available on iOS and Android with freemium/paid model.
4. Data Licensing and B2B API Access: Licensing of hyper-local weather data and API services to third-party platforms. Partnerships with WeatherBug, government agencies (NOAA, NWS), and specialized weather data users. WFn Holdings supplies data to NOAA and Hurricane Insurance Industry.
5. Strategic Partnership Cross-Selling: Revenue generated through partnership-driven distribution including WeatherBug referral sales (650+ Tempest sales from WeatherBug integration), Amazon integrations, Disney Weather Safety & Science Kit, and other co-selling arrangements.

Pricing tiers

Go-to-market motion3 records

Distribution channels8 records

Marketing channels10 records

Core offering

Tempest (WeatherFlow-Tempest, Inc.) sells a connected home weather station, a mobile weather app, and the TempestOne enterprise decision-support platform, all powered by its proprietary Nearcast AI technology and fed by a network of 80,000+ Tempest weather stations worldwide. The company also operates a portfolio of lifestyle weather apps (iKitesurf, iWindsurf, SailFlow, WindAlert, FishWeather, HeatAlert) and licenses weather data via its developer API.

Product overview

Tempest (WeatherFlow-Tempest, Inc.) offers a unified weather technology platform combining consumer hardware, enterprise software, and lifestyle applications. The core offering centers on the Tempest Weather System (home weather station with Nearcast AI) and the TempestOne enterprise platform, both powered by the proprietary Nearcast AI technology and the Tempest Network of 80,000+ weather stations. The product portfolio includes the flagship Tempest Weather Station with its mobile app, professional TempestOne solution for businesses, a suite of six lifestyle apps (iKitesurf, iWindsurf, SailFlow, FishWeather, WindAlert, HeatAlert), the Tempest Cam Ring integration, and API Services for developers. The ecosystem enables hyper-local weather forecasting from personal backyard data to enterprise-scale operational infrastructure.

Differentiator

Problem solved

Functional benefit

Brands

• TempestOne: Professional weather platform solution that empowers organizations with decision tools informed by accurate weather observations and forecasts, leveraging the Tempest Network and Nearcast AI technology.
• Nearcast AI
• HeatAlert
• Tempest Cam
• iKitesurf
• iWindsurf
• SailFlow
• WindAlert
• FishWeather

Products and services

• Tempest Weather System The flagship connected home weather station (with no moving parts) paired with the Tempest mobile app, delivering real-time local observations and AI-powered hyperlocal forecasts for smart home, garden, and weather-driven personal decisions.
• TempestOne Enterprise weather decision-support platform that combines curated data from the Tempest Network with Nearcast AI to deliver situational awareness and short-term forecasting for utilities, broadcasters, fire departments, emergency management, coastal operators, and other organizations.
• Tempest Weather App AI-powered mobile weather app for iOS and Android (with Apple Watch support) that delivers hyperlocal forecasts using real-time observed data from the Tempest station network and Nearcast Technology.
• iKitesurf Precision weather app for kiteboarders providing real-time wind observations (speed, direction, strength) and forecasts from over 100,000 locations globally, powered by Tempest's AI forecasting technology.
• iWindsurf Global wind report app for windsurfers offering real-time wind observations and forecasts from over 100,000 strategic locations worldwide, powered by Tempest's exclusive AI forecasting technology.
• SailFlow Marine reports app designed for sailors providing real-time wind direction reports and forecasts from 50,000+ free weather stations, 700 PRO stations, and 60,000+ PLUS stations, with professional meteorologist daily briefings.
• WindAlert Real-time wind observation app covering over 100,000 weather stations worldwide, providing wind speed and direction data with NWS watches, warnings, and marine forecasts.
• HeatAlert Heat stress index app using Wet Bulb Globe Temperature (WBGT) and Probability of Precipitation (PoP) for real-time updates and accurate forecasts to help plan outdoor activities and workforce safety.
• Tempest API Services Developer API providing programmatic access to weather data from the Tempest Network of 90,000+ stations worldwide, enabling third-party applications, smart home integrations, and partner services to consume real-time observations and forecasts.
• Tempest Weather Safety & Science Kit Co-branded weather education and monitoring kit launched in partnership with Disney, sold through the Tempest storefront and distributed at Disney parks.

Quantifiable outcome

• Guaranteed better forecast accuracy compared to general weather apps for exact user locations
• +4 more outcomes

Named customers18 records

Segments6 records

Ideal customer profiles6 records

Technology focussed Yes

API detail

Has API

Yes

API docs

API detail

Core technology

AI maturity

App detail

Integration7 records

AI capability7 records

Feature6 records

Partnerships

13 partnerships are on record, tiered core, major and minor.

• Vantage Point Solutions (VPS) / URC (Utility Resource Collaborative)coreStrategic or Co-development Partner · 10 January 2025WeatherFlow-Tempest partnered with Vantage Point Solutions, parent company of URC (Utility Resource Collaborative), to integrate the Daily Situational Awareness Tool (DSAT) into the TempestOne Ops Console. This gives electric utilities access to the most effective wildfire weather and hazard insights all in one place, including comprehensive 6-day wildfire risk forecasting.
• RachiomajorTechnology or Integration · 1 May 2023Smart watering integration partnership. Tempest Weather System serves as the weather source for Rachio's Smart Sprinkler Controller, powering Rain Skip, Wind Skip, Freeze Skip, and other weather-responsive irrigation automation features. The combined Tempest + Rachio solution won Best New Smart Devices of CES 2023. Partnership had immediate impact on June 2022 sales.
• WeatherBug (GroundTruth Inc)coreGTM or Marketing Partner · 25 October 2022Strategic partnership and data licensing agreement with WeatherBug, operator of the second most popular weather app with 15 million monthly active users. WeatherBug actively cross-promotes and sells Tempest stations to its user base. Generated over 650 Tempest sales in the early months following the December 2022 launch, with revenue beginning to flow from WeatherBug partnership in December 2022.
• DisneymajorStrategic or Co-development PartnerPartnership with Disney to develop advanced weather monitoring and decision support tools. Launched the Tempest Weather Safety & Science Kit at Disney parks. Expanding the network of Tempest stations at Disney properties, leveraging Disney's extensive brand reach to grow the Tempest consumer network.
• Amazon (Prime Air)minorGTM or Marketing PartnerAmazon integration for Tempest weather data, with specific focus on Amazon Prime Air operations. Listed among commercial partners alongside The Weather Channel and other broadcast media partners.
• Embry-Riddle Aeronautical UniversitycoreStrategic or Co-development PartnerOngoing collaboration with Embry-Riddle, including R&D offices at the MicaPlex Research Park. Expansion into new Advanced Technology and Manufacturing Center at Embry-Riddle, consolidating Tempest's manufacturing and fulfillment operations near the Daytona Beach headquarters.
• Action News JaxminorGTM or Marketing PartnerJacksonville, Florida broadcast television station as part of Tempest's Broadcast TV and Media Partner Program. Using Tempest weather data and TempestOne platform for local hyperlocal weather forecasting.
• The Weather ChannelminorGTM or Marketing PartnerBroadcast television network partner in Tempest's Broadcast TV and Media Partner Program, integrating Tempest weather data into programming and forecasting.
• Clemson UniversityminorStrategic or Co-development PartnerAcademic partnership with Clemson University announced Q1 2023, expanding Tempest's presence in the research and educational sector.
• WeatherFlow Networks (WFn Holdings Inc)coreStrategic or Co-development PartnerAffiliate company WFn Holdings Inc owns and operates the largest industrial-grade private weather observing network in the world and supplies Tempest with exclusive data. WFn also directly serves specialized weather data users including NOAA and the Hurricane Insurance Industry. This relationship provides Tempest with unique access to industrial-grade weather observations.
• National Weather Service (NWS-NOAA)coreOthersTempest provides weather data pro bono to the National Weather Service and other met agencies globally. Tempest data contributes to better global forecasting and supports NOAA's mission of predicting dangerous weather and warning the public of potential risks. Hurricane Network data provided in real-time during Hurricane Laura landfall.
• EMAT Workshop ParticipantsminorGTM or Marketing PartnerTempest promoted its dense, real-time sensor networks at the EMAT Workshop in Tennessee, targeting the emergency management sector with TempestOne as mission-critical operational infrastructure.
• NAB 2026 ConferenceminorGTM or Marketing PartnerTempest showcased its TempestOne platform at the NAB 2026 conference in Las Vegas, targeting broadcast media professionals as potential TempestOne customers.

Scale indicators8 records

Recent moves10 records

Expansion highlights7 records

Broad incumbents

• DTN: Large operational weather and agricultural data provider serving agriculture, energy, transportation, and commodities markets. Comparable to Tempest's TempestOne enterprise motion in delivering decision-support weather intelligence to utilities and operational industries.
• AccuWeather: One of the largest commercial weather data and forecasting providers globally, serving consumers, media, and enterprise customers. Comparable to Tempest in offering weather APIs, broadcast-grade forecasts, and B2B data licensing, though broader in scope and more established across media and enterprise segments.
• IBM Environmental Intelligence Suite (formerly The Weather Company): Enterprise weather data and AI forecasting platform spun out of The Weather Company and now owned by IBM. Comparable to Tempest in offering weather APIs, ML-driven forecasting, and enterprise decision support across industries.

Direct peers

• Tomorrow.io: AI-driven weather intelligence platform serving enterprise customers with hyperlocal forecasts and an API/data offering. Comparable to Tempest in applying AI/ML to weather data and pursuing enterprise buyers, but with substantially larger venture funding and a satellite-based proprietary data layer.
• Davis Instruments: Long-established manufacturer of professional and consumer-grade weather stations with connected data and software. Comparable to Tempest as a hardware-first weather station competitor serving enthusiast, prosumer, and agricultural/institutional customers.
• Earth Networks: Operator of a large private weather observation network (lightning/surface stations) with enterprise data services. Comparable to Tempest's crowdsourced network strategy and B2B weather data monetization model.
• AcuRite (Chaney Instrument): Consumer weather station and environmental monitoring brand with broad retail distribution. Comparable to Tempest as a competing consumer/prosumer weather station manufacturer with connected apps and smart home integrations.
• Baron Weather: Weather data, radar, and broadcast weather graphics provider with strong penetration in TV broadcasting and public safety. Comparable to Tempest's broadcast media partnerships and TempestOne enterprise platform for situational awareness.
• Ambient Weather: Direct-to-consumer weather station brand with smart home integrations and a community of connected stations. Comparable to Tempest as a competing consumer/prosumer weather station brand with online dashboards and ecosystem integrations.

Emerging players

• Climavision: AI-augmented weather forecasting and observation company combining proprietary radar gap-filling with high-resolution numerical modeling. Comparable to Tempest's push into enterprise AI-driven hyperlocal forecasting and decision tools.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat6 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/tempestwx
• Xx.com/tempest_wx
• Facebookfacebook.com/tempestwx

Revenue estimate

Valuation estimate

Number of profiles

Profiles8 records

Funding overview

Funding rounds7 records

Investors1 record

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Tempest