How do rainbows form?
Rainbows are an optical illusion but what weather conditions are needed for them to appear?
Search for a location
Glastonbury: The latest weather forecast
21st June 2022 Last updated at 11:21
Please turn on JavaScript. Media requires JavaScript to play.
While the lead up to the festival looks dry, temperatures are going to peak on Wednesday and Thursday, so what's in store for Friday and the weekend? Matt Taylor has all the details.
Weather Videos
UV – how to stay safe in the sun
Louise Lear explains the different factors that affect the strength of UV radiation.
In pictures: Europe swelters in blistering heat
Temperatures soar as scientists warn heatwaves are striking earlier in the year due to climate change.
Climate Check
The start of 2022 has brought more of the searing heatwaves and bouts of severe winter weather we're expecting in a changing climate.
Weather Quiz: do you know your forecast?
Do you know your cold fronts from your isobars? Take the weather forecast challenge.
Spectacular pink and orange sunset lights up sky
Saturday night's incredible colours had people reaching for their cameras across the UK.