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Will it rain today?

An hour counts as rainy when the chance of rain is at least 50% or forecast rainfall is at least 0.2 mm.

Chance of rain today

Choose a place for the hourly view

Staying dry

  • Umbrella from 50%At a 50% chance or more, take an umbrella or a light raincoat.
  • Check the radar firstRadar shows where rain clouds are and where they are heading over the next 1–2 hours.
  • Avoid open ground in stormsIn thunderstorms, keep away from tall trees, open ground and water; get into a solid building.
  • Rain forecasts change fastSummer showers are hard to time exactly — check again before you head out.

Rain forecast FAQ

What does a “40% chance of rain” mean?

It is the model's probability of measurable rain at that spot in that hour. 40% does not mean rain for 40% of the time or area — just that 4 in 10 similar forecasts bring rain.

How does this page decide it will rain?

An hour counts as rainy at a chance of at least 50% or forecast rainfall of at least 0.2 mm. The answer is “Rain likely” when at least one of the next 12 hours reaches that.

How much rain is heavy rain?

Under 1 mm/h is light, 1–4 mm/h moderate, over 4 mm/h heavy; over 50 mm a day can cause local flooding.

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