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
Forest fires are getting out of control. Spain and France. . . Saturday, 25 July 2026
A split-screen image featuring a photograph and a weather map. On the left, thick, dark-grey smoke rises from several fire sites in a wooded coastal area; a calm stretch of water can be seen in the foreground. On the right, a weather map shows south-western France and northern Spain. A red arrow points from the Atlantic towards the French Atlantic coast, symbolising an onshore wind. Sunny weather is forecast for Bordeaux at around 20 degrees, and Bilbao is also expected to be sunny at around 27 degrees. A large warning sign with a flame symbol indicates an increased risk of forest fires.
Saturday, 25 July 2026

Spain and France

Forest fires are getting out of control
Heavier rainfall over the week for some. Ireland & Scotland. . . Tuesday, 28 July 2026
Split image showing a Europe rainfall accumulation forecast map on the left with the highest totals across the UK, Ireland, and Scandinavia, and a satellite weather map on the right with a broad band of rain stretching across Ireland, Scotland, and northern Britain, highlighted by a rain cloud icon.
Tuesday, 28 July 2026

Ireland & Scotland

Heavier rainfall over the week for some
Catastrophic forest fires in Europe. Thousands evacuated. . . Monday, 27 July 2026
A composite image showing a temperature map of south-western Europe and a drone shot of a forest fire near Cap Ferret. A warning symbol featuring a flame indicates the increased risk of forest fires.
Monday, 27 July 2026

Thousands evacuated

Catastrophic forest fires in Europe
All weather news
This might also interest you
Turbulent weather in the Canary Islands. Storm and rain. . . Friday, 12 December 2025
Weather graphic showing rain and wind fields over the Canary Islands and a central warning symbol.
Friday, 12 December 2025

Storm and rain

Turbulent weather in the Canary Islands
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