Alton Weather in June

The climate in Alton during June can be summarized as warm and a little damp.

June is in the summer in Alton and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 29°C (85°F), whilst at night 16°C (60°F) is normal.

On average June is the 6th driest month of the year in Alton with around 93mm 3.7 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 11.1 hours of sunshine per day.

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Alton in June 2025.