Boise Weather in August

What's the weather like in Boise (Idaho) in August 2024?

The climate in Boise during August can be summarized as warm and dry.

August is in the summer in Boise and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 31°C (88°F), whilst at night 13°C (56°F) is normal.

Boise weather averages (imperial / metric)
Daytime temperature 31.3°C 88.3°F
Nightly temperature 13.3°C 55.9°F
Average temperature 22.3°C 72.1°F
Daily sunshine 12.4 hrs
Avg rainfall 10 mm 0.4 ins
Rainy days 3 days
Sea temperature 15°C 58.9°F
Humidity 37%
Windspeed 14kph 9 mph

On average August is the 2nd driest month of the year in Boise with around 10mm 0.4 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.

On the flip side this corresponds to an average of 12.4 hours of sunshine per day.

August temperatures in Boise

Boise average temperature in August

August rainfall

Boise average rain in August

August hourly sunshine

Boise average rain in August

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 Boise in August 2024.