Home
Weather London
WeatherRadar
RainfallRadar
TemperatureRadar
WindRadar
LightningRadar
Weather News
Editor's Pick
Discover the app
Weather widget
Contact us
Apps
Career
    Home / Editor's Pick /

    Understanding the app: How to read rain forecasts

08:00
9 May 2023

Understanding the app
How to read rain forecasts

Rainfall warning

A common question we get asked is what does the percentage of rain really mean in a weather app? Well, we’re here to debunk the misconceptions.

It is important to remember that the percentage shows the chance of rain at that time, in your forecast area.

A 30% chance means a 30% chance that it will rain in your forecast area, and a 70% chance that it will stay dry.

When there are showers in the forecast, rather than a solid band of rain, there is a great deal of uncertainty. This is because showers can be extremely localised, forming and dissipating over short time periods.

Often with showers, the chance of precipitation could be fairly low, but the risk could be throughout the entirety of the day.

So, if you’re unsure about whether you’re at risk of catching a shower, stay updated via our WeatherRadar, where you can see where the showers are developing real-time.

Weather & Radar editorial team
More on the topic
Record-breaking heatwave in Europe. New records. . . Thursday, 25 June 2026
A map showing extremely high temperatures across Western Europe and a warning symbol. On the right, people cool off at a fountain in front of the Eiffel Tower during the heatwave in Paris.
Thursday, 25 June 2026

New records

Record-breaking heatwave in Europe
Frost instead of a heatwave. Winter in South America. . . Friday, 26 June 2026
Temperature map of South America showing a widespread cold air outbreak across Argentina, Uruguay, Paraguay, and southern Brazil, with a large blue thermometer icon highlighting below-average temperatures and near-freezing conditions in parts of Argentina.
Friday, 26 June 2026

Winter in South America

Frost instead of a heatwave
New record June temperature in the UK. Likely to be broken again. . . Thursday, 25 June 2026
Heat map of southern England on 24.06 showing extreme temperatures across Hampshire, with Gosport highlighted at 36.1°C and nearby Portsmouth around 35°C amid deep red heat zones.
Thursday, 25 June 2026

Likely to be broken again

New record June temperature in the UK
All weather news
This might also interest you
A frozen start to the weekend. Icy conditions. . . Friday, 13 February 2026
UK temperature map dated 14.02 showing widespread subzero values in blue shading, with readings such as −4 in Glasgow, −3 in Dublin, and −2 in London, alongside a blue thermometer icon.
Friday, 13 February 2026

Icy conditions

A frozen start to the weekend
Storm Chandra makes impact. Severe gales & heavy rain. . . Tuesday, 27 January 2026
Split image showing strong winds over the UK on a forecast map and widespread rain and snow on a weather radar map.
Tuesday, 27 January 2026

Severe gales & heavy rain

Storm Chandra makes impact
Seasonal warmth between spring thunder. Your weather - Your shots. . . Sunday, 19 April 2026
Split image showing coastal sunset with layered lenticular clouds over rooftops and palm trees on the left, and a green valley with river and hills under soft daylight on the right.
Sunday, 19 April 2026

Your weather - Your shots

Seasonal warmth between spring thunder
All articles
Weather & Radar

Weather & Radar is also available on

Google Play StoreApp Store

Company

Contact us Privacy Policy Legal info Accessibility statement

Services

Uploader

Socials

facebooktwittertikToklinkList