Weekend weather forecast for Glastonbury - 18 Sep to 20 Sep
By Mr.Data 18th Sep 2026
Weekend Weather Forecast for Glastonbury
This weekend, Glastonbury will experience a mixture of partly cloudy and cloudy conditions with temperatures reaching a maximum of 20°C. There is a moderate chance of precipitation over the weekend, with Saturday having the highest probability of rainfall. Winds will be notably brisk throughout Friday and Saturday, calming somewhat by Sunday. Here is a day-by-day breakdown of the weather forecast:
Friday:
Expect a day of partly cloudy skies with a comfortable high of 18°C and a low of 11°C. Humidity will sit at 78%, but with no precipitation expected, your outdoor plans should go smoothly. The wind will be quite strong, gusting at 28mph, so it would be advisable to hold onto your hats!
Saturday:
The Glastonbury skies will be mostly cloudy throughout the day with temperatures peaking at a mild 20°C and dropping to 16°C overnight. Humidity levels will be high at 84%, coupled with a 48% chance of rain, so it's wise to carry an umbrella. The wind will continue at 27mph, possibly adding to the chill factor.
Sunday:
The weather will brighten a bit with partly cloudy skies and temperatures reaching a pleasant high of 18°C and a cool low of 13°C. With humidity at 76% and a 48% chance of precipitation, scattered showers could disrupt outdoor activities. Winds will ease to 18mph, making it a calmer day for outdoor adventures.
Commuting Advice:
The weekend commute in Glastonbury may be impacted by brisk winds on Friday and Saturday. While rain is not guaranteed, it is advisable to check for possible delays caused by potential sudden showers on Saturday and Sunday. Be prepared for reduced visibility and slippery pathways.
Advice for Weekend Plans:
This weekend’s weather is ideal for flexible plans. While partly sunny conditions are expected, rain might make a surprise appearance, especially over the weekend. Planning indoor and outdoor options will keep your weekend enjoyable, regardless of the weather changes. Carry a light jacket and umbrella to stay comfortable and dry.
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