Weather, explained.

Other weather apps give you the play-by-play. We add the color commentary. Sky, your AI weather guide, explains the science behind the forecast—and the uncertainty behind the science.

Download on the App Store
Built for weather nerds
Why Weather showing current conditions, the day's weather story, and an hourly forecast
Meet Sky

Your AI weather guide.

Sky pulls the models, the radar, and the forecaster's own notes into one weather story—and explains the why. Storm timing, why it's so humid, what a front actually does. In plain language, no jargon.

Sky explaining how sure the forecast is, with a chart of how the model runs split
Ask Sky

Ask why. Get a straight answer.

Ask Sky anything about your weather—even how sure the forecast is. Sky shows you the spread across the model runs, and explains what's driving it.

Sky's weather story for the day, with a morning, day, and evening temperature graphic
Weather Story

The whole story behind the day.

Go past the one-line read: Sky narrates the full picture—what's building, what the forecaster is watching, and what it means for you—in a story you can actually follow. It's waiting for you every morning.

Current conditions with a plain-language brief of the day ahead
Today's weather in brief

Your day, in a sentence.

Open to a one-line read on what's ahead—warm, gusty, rain by midnight—right under the current conditions. Tap through for the full story.

The Learn section with a weather factoid and concept questions to explore
Learn

Get curious. Go deeper.

Tap a concept to understand the forces behind your weather—pressure ridges, ocean heat, why mountains make rain. Real meteorology, made approachable.

A Forecast in Flux badge with the forecaster's own uncertainty quoted
Forecast in Flux

Honest about uncertainty.

When forecasters flag doubt or the models split, you'll know—and see why. No faking a confidence the forecast doesn't have.

Honest by design

Grounded in what's real.

We aren't trying to predict the weather better than everyone else. We're trying to describe what's actually happening where you are—and say so when the forecast and reality disagree.

The radar map with a Radar Read line: showers forming in place around you, rain here in 15 to 30 minutes
Radar Read Premium

Rain on its way, or just passing by?

Sky watches the live radar and tells you what's actually happening: rain on its way, rain passing you by, or nothing close at all. It tracks how the rain is moving, checks nearby weather stations, and tells you plainly when the forecast and the radar disagree.

Forecast in Flux open: the forecasters' wording, a quote from the National Weather Service, and how 51 model runs split
Forecast in Flux

See where the forecast could go.

When the forecast is genuinely uncertain, open it up: what the forecasters are saying in their own words, and how the model runs split—"35 runs keep the rain going until 3 AM, 16 dry out by 1."

Ground Truth

What's actually happening.

Beyond the model, Why Weather pulls real conditions from nearby stations and radar—so "now" reflects the sky outside, not just a forecast.

Multiple sources Premium

Pick your forecast.

Prefer NOAA? Apple Weather? Foreca? Choose the model behind your forecast, drawing on several trusted sources.

The forecast

A forecast you can read at a glance.

Built to be felt, not decoded—so the stuff that matters lands in a beat.

Adaptive Glance

A view that reads the room.

When skies are quiet, the full forecast sits front and center. When something's brewing, the map eases up so you can see it coming. When it's serious, the radar takes the lead—no tapping required.

A calm day, with the full forecast leading
Quiet skies — full forecast
Rain moving in, with the radar peeking above the forecast
Rain moving in — radar peeks up
Heat building, with the temperature map peeking above the forecast
Heat building — temp map peeks up
Active storms, with the radar taking the lead
Storms active — radar leads
Beautifully visualized

Data you can feel, not decode.

Hourly and daily forecasts laid out to read at a glance—temperature, rain, wind, and sun, clear in a beat. Ten days ahead, with how the week compares to normal.

The next 10 days, with a sparkline showing how the week compares to normal A clean hourly temperature chart for the next 24 hours
Radar & maps

See it coming.

Animated radar, plus future radar, wind, and temperature maps with Premium—and smart prompts to ask Sky about what's on the map.

Animated precipitation radar Wind direction and speed map layer Temperature map layer
Go deeper

More of the why.

Why Weather is free, with three questions to Sky a day. Premium makes Sky unlimited and adds the features marked below.

The Dynamic Island showing rain starting now The expanded Live Activity: raining now, with the next hour of rain bars The lock screen Live Activity with the next hour of rain
Live Activities Premium

Rain, on your lock screen.

When rain is coming, a Live Activity on your lock screen and in the Dynamic Island shows what it's doing over the next hour—when it starts, how hard, and when it eases. It updates on its own, then steps aside when the rain is done.

Sky Almanac

How unusual is this?

At the top of your 10-day forecast, a quick read on how the week compares to normal. Tap it, and Sky puts the week in context: how it ranks against the last 30 years for the same dates, which years ran warmest, and how your month has changed decade by decade—the climate story behind your forecast.

The next 7 days compared with normal: warmer than normal on most days ahead Sky's Almanac answer: October's average high by decade, from the 1950s to the 2020s, and how this week ranks
The air today card: oppressive moisture with the dewpoint and humidity, steady pressure with its trend, and a sentence on what it means
The air today Premium

Humidity and pressure, translated.

What does 73% humidity actually feel like? Is 29.91 inches of pressure good news? The air today turns those numbers into words you can use—dry or muggy, steady or falling—with the trend behind them and a sentence on what it means for your day.

Widgets

Your weather, at a glance.

Home and lock screen widgets, with a daily headline from Sky. Premium adds Sky's full daily brief and a rain countdown on your lock screen.

Medium home screen widget with Sky's daily brief Small home screen widget

Weather worth understanding.

Download on the App Store

Free on iPhone. Premium available monthly or yearly.