ClearcastLearn more
Horizon Data Works

Know the sky before you step outside.

A calm weather companion that tells you what to expect, when it will change and whether you need an umbrella, without the clutter.

Free to try. No card required.

Ten-day outlookOfficial alertsAir quality and pollen

How it works

  1. 1Search for a city or use your current location.
  2. 2Pick the alerts you want to receive.
  3. 3Check the day ahead in a single sentence.
  4. 4Follow the forecast for family and friends far away.

About Clearcast

Weather is local, and a national forecast rarely tells you about the shower that will hit your street at 17:40. We use high-resolution radar and short-term models to give a minute-by-minute picture for the next hour, then hand over to longer-range models for the week. Alerts are limited to what matters for your saved places, and you decide how loud they are allowed to be.

Frequently asked questions

Where does the forecast data come from?

We combine several public meteorological models and pick the one that has been most accurate for your area over the last weeks.

How often is the forecast updated?

Hourly for the next two days and four times a day for the longer outlook. Severe weather alerts are pushed as soon as they are issued.

Can I follow more than one place?

Yes. Save as many locations as you like and switch between them with a swipe. Each one keeps its own alerts.

What you get

Plan the week

Highs, lows, wind and humidity for the next ten days, plus an hourly breakdown for any day you tap.

Severe weather warnings

Storm, heat, frost and wind warnings from official sources arrive as soon as they are issued for your saved places.

Air and pollen

Wind direction, gusts, pressure trends and UV index help you decide what to wear and when to head out.

Minute-by-minute rain

A short timeline shows exactly when rain starts and stops near you, so you can time the walk to the bus stop.