Tomorrow.io

Key takeaways

Tomorrow.io belongs to science; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Tomorrow.io to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Tomorrow.io from memory before moving on to harder problems.

Reference excerpt

Tomorrow.io (formerly ClimaCell; legally known as The Tomorrow Companies Inc.) is an American weather technology company headquartered in Boston, Massachusetts. The company provides a weather intelligence and climate adaptation platform combining proprietary satellite data, artificial intelligence, and real-time forecasting for enterprises and governments. Its customers include major airlines, space agencies including NASA, and the United States Department of Defense. Tomorrow.io satellites are also used by the governments of Nigeria and the Philippines to provide weather prediction models to farmers. Founded in 2016, Tomorrow.io began by using IoT and cellular network signals as novel weather data sources before expanding into commercial weather satellites. In February 2026, the company raised $175 million at a valuation exceeding $1 billion, achieving unicorn status. At the same time, the company announced the DeepSky programme, a next-generation AI-native satellite constellation.

History

Founding and early development (2016–2020) Tomorrow.io was founded in 2016 as ClimaCell by Shimon Elkabetz, Itai Zlotnik, and Rei Goffer. The company's initial approach to weather forecasting used wireless communication infrastructure and Internet of Things devices to collect real-time weather data at higher resolution and closer to ground level than traditional Doppler weather radar or satellite methods. In 2019, ClimaCell launched a consumer mobile weather app providing street-by-street, minute-by-minute forecasts. The app was later rebranded as Weather by Tomorrow following the company's 2021 name change.

Rebrand and Series D (2021) In February 2021, the company announced Operation Tomorrow Space, a programme to develop and launch proprietary radar-equipped satellites to improve its forecasting capabilities. In March 2021, ClimaCell rebranded as Tomorrow.io and simultaneously announced a $77 million Series D funding round led by Stonecourt Capital and Highline Capital, bringing total funding at that time to approximately $184 million. The company stated the funding would be used to accelerate its SaaS growth and invest in its space programme.

SPAC merger and termination (2021–2022) In December 2021, Tomorrow.io announced a planned merger with Pine Technology Acquisition Corp., a special-purpose acquisition company (SPAC), at a post-deal valuation of approximately $1.2 billion. The transaction was expected to provide up to $420 million in gross proceeds. In March 2022, the two companies mutually agreed to terminate the merger agreement, citing market conditions. Under the terms of the termination, Tomorrow.io paid Pine Technology $1.5 million, and the company remained privately held.

Series E and satellite launches (2023) In June 2023, concurrent with the launch of its second satellite, Tomorrow.io raised $87 million in a Series E round led by Activate Capital, with participation from RTX Ventures, Seraphim Space, and Chemonics. Existing investors SquarePeg Capital, Canaan, ClearVision, JetBlue Ventures, and Pitango also participated. The funding was earmarked to complete a constellation of more than 20 satellites.

DeepSky and unicorn status (2026) In February 2026, Tomorrow.io announced a $175 million equity financing round led by Stonecourt Capital and HarbourVest Partners, valuing the company at over $1 billion. With this round, total funding reached approximately $508 million. The company reported annual recurring revenue of approximately $100 million at the time of the announcement. The funding was raised to accelerate the deployment of DeepSky, described as the world's first AI-native weather satellite constellation, building on the completed first-generation constellation.

Technology and products

Weather intelligence platform Tomorrow.io's core product is an enterprise weather intelligence platform providing real-time, historical, and predictive weather data through a web dashboard, API, and automated alerts.

NVIDIA partnership In March 2025, Tomorrow.io announced a technical collaboration with NVIDIA centred on the NVIDIA Earth-2 platform, a cloud-based system for AI-accelerated weather and climate modelling. Under the partnership, Tomorrow.io contributes near-real-time proprietary satellite data to help construct an NVIDIA digital twin of Earth, used for the training, inference, and reinforcement of next-generation atmospheric AI models.

Consumer app In 2019, the company released a consumer mobile weather application, initially named ClimaCell Weather, providing minute-by-minute, street-level forecasts.

Satellite constellation

First constellation (2023–2024) The first satellite, Tomorrow-R1, launched on 15 April 2023 aboard a SpaceX Falcon 9 rocket as part of the Transporter-7 rideshare mission from Vandenberg Space Force Base. The satellite carries a Ka-band software-defined radar operating at 35.75 GHz, observing over a 400 km field of view to detect precipitation and ocean surface characteristics. The second radar satellite, Tomorrow-R2, launched on 12 June 2023 on the SpaceX Transporter-8 mission. At 85 kg, both R-1 and R-2 are microsatellites hosting identical Ka-band radar payloads. Prior to these launches, the only precipitation radar-equipped satellite in orbit was NASA's Global Precipitation Measurement satellite; R-1 and R-2 were the first commercially built weather radar satellites. In August 2024, Tomorrow.io expanded into passive sensing with the launch of Tomorrow-S1 and Tomorrow-S2, two 6U CubeSats equipped with passive microwave sounder radiometers, aboard SpaceX's Transporter-11 mission. By February 2026, the company reported having completed the full deployment of its first satellite constellation, comprising 13 satellites in low Earth orbit and achieving a 60-minute global revisit rate.

Defence contracts Tomorrow.io has secured approximately $20 million in contracts from the United States Department of Defense to support space-based weather sensor development. In May 2024, the company received a contract through the Accelerate the Procurement and Fielding of Innovative Technologies (APFIT) programme to manufacture and deliver two microwave sounder satellites to the United States Air Force Weather Systems Branch by May 2025.

… excerpt ends here. Continue reading the full article.

Worked examples

Example 1 — a first encounter with Tomorrow.io

Start with the simplest possible case. Write down what Tomorrow.io claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In science, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Tomorrow.io before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Tomorrow.io ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Tomorrow.io

In research: Tomorrow.io appears in science research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Tomorrow.io in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Tomorrow.io is common in secondary-school and first-year university syllabi. It links to neighbouring topics Companies based in Boston, Meteorological companies, so understanding it makes those chapters shorter.
In everyday life: Look for Tomorrow.io outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

How to study Tomorrow.io in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Tomorrow.io means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Tomorrow.io out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Tomorrow.io in simple terms?

Tomorrow.io (formerly ClimaCell; legally known as The Tomorrow Companies Inc.) is an American weather technology company headquartered in Boston, Massachusetts. The company provides a weather intelligence and climate adaptation platform combining proprietary satellite data, artificial intelligence…

Why does Tomorrow.io matter?

Because it connects several science ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Tomorrow.io?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Tomorrow.io.