Huecast Open app

The weather,
drawn as a picture

One circle, one sky and a few words. Huecast paints the forecast with colour, light and particles. No photos, no icons.

New Explore the world's extremes
huecast.app

This is the real app. Drag across the bars at the bottom.

A new kind of weather app. Not a dashboard full of numbers, a sky. Huecast reads the temperature, the hour, the cloud, rain, snow, fog and wind for any place on Earth, and paints them.

1.1The skyTwo colours: one for the hour, one for the temperature.
1.2The circleThe sun by day, a ring by night. Hotter skies pulse and glow.
1.3The weatherRain, snow, fog and wind, drawn live from measured amounts.

Colour from
the real sky

The background blends a time-of-day colour with a temperature colour. Sunrise always gets the dawn colours and sunset the evening ones, so a short winter day keeps its light in step with the sun.

How the colours work
Time of day
0006121824
Temperature
−20°0°20°40°

Drag either scale to mix a sky.

2.1Real sunrise and sunset

Colours follow the location's own sun, not your clock.

2.2Ice blue below zero

Deeper the colder it gets, with a halo under −5°.

2.3Always readable

Text turns dark on very pale skies.

Weather,
drawn live

Each kind of weather has steps, set by the measured amount: heavier rain falls faster, heavier snow has bigger flakes, thicker fog rises higher, and wind slants the rain. Only low, thick cloud hides the sun.

Every step, side by side
3.1One canvas

Hundreds of particles, paused when off screen.

3.2Morphs, never jumps

Particles fade in and out as the weather changes.

3.3Reduced motion

A still frame when your system asks for it.

24 hours
you can scrub

The bars are the next day. Each one is a tiny copy of that hour's sky, its height is the temperature, and ticks above it mark the rain. Drag across them and the whole screen moves through the day. Hold them for the week ahead.

Try it on your forecast
Now
4.1Feels like

Wind and humidity, shown next to the hour.

4.2Moon to sun

A line under the bars marks the night.

4.3Next days

Hold the bars for the next 7 days, each its own small timeline.

Explore
and keep

Search any city, or let the dice take you somewhere extreme right now: the coldest, hottest, wettest, snowiest, stormiest, foggiest or windiest place, or wherever it's golden hour. Pin the places you check, and save a scene to open again later.

Roll the dice
5.1Pins

Your places, first in search.

5.2Saved scenes

Place, hour and its 24-hour forecast.

5.3Share

A link, or the screen as a picture.

Changelog

  1. Timecast

    One circle and a gradient made from temperature × time of day, drawn with jQuery and hundreds of divs.

  2. Rebuilt as Huecast

    Open‑Meteo over HTTPS with no key, one canvas, plain ES modules and zero dependencies.

  3. 24-hour timeline

    Drag to watch the sky change hour by hour, with feels-like and rain marks. Hold it for the next 7 days.

  4. Explore extremes

    The coldest, hottest, stormiest places right now, and where it's golden hour.

See the code

“No server, no account, no tracking. Your places stay in your browser.”

PrivacyYour location only goes to the forecast service.

“Make the sky your desktop wallpaper.”

Wallpaper modeAdd ?wallpaper to any place.

Huecast is free and open. Read the source or learn how it works.

Look up.
Available today.

Open Huecast How it works