Boulder Weather in August

What's the weather like in Boulder (Montana) in August 2024?

The climate in Boulder during August can be summarized as mild and reasonably dry.

August is in the summer in Boulder and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 8°C (47°F) is normal.

Boulder weather averages (imperial / metric)
Daytime temperature 26.4°C 79.4°F
Nightly temperature 8.3°C 46.9°F
Average temperature 17.3°C 63.1°F
Daily sunshine 11.1 hrs
Avg rainfall 36 mm 1.4 ins
Rainy days 8 days
Sea temperature 14.3°C 57.8°F
Humidity 48%
Windspeed 13.7kph 9 mph

On average August is the 3rd wettest month of the year in Boulder with around 36mm 1.4 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

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

August temperatures in Boulder

Boulder average temperature in August

August rainfall

Boulder average rain in August

August hourly sunshine

Boulder 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 Boulder in August 2024.