Lewiston Weather in August

The climate in Lewiston during August can be summarized as warm, humid and a little damp.

August is in the summer in Lewiston and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a muggy 26°C (78°F), whilst at night 15°C (58°F) is normal.

On average August is the 2nd driest month of the year in Lewiston with around 83mm 3.3 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 11 days, although this may vary considerably.

On the flip side this corresponds to an average of 8.7 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 Lewiston in August 2024.