Great Falls Weather in August

Great Falls in August sees high temperatures, with highs around 29°C (84°F) and overnight lows of 11°C (52°F). Overall excellent conditions make it one of the better months to visit.

Rainfall in Great Falls in August

Based on our climate data of the past 30 years, about 7 days of rain are anticipated, with 31 mm (1.2 in) on average. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.

Temperature in Great Falls in August

August tends to be one of the excellent months in Great Falls, with 29°C (84°F) in the afternoon and 11°C (52°F) overnight. The days can feel warmer than the evenings, so packing for both parts of the day is a good idea. At 11°C (52°F) overnight, it can feel quite a bit cooler after dark. Worth packing something warmer for evenings, but the cooler temperatures are ideal for sleeping.

Sunshine in Great Falls in August

There are approximately 328 hours of sunshine this month, resulting in mostly clear days.

Wind Speed in Great Falls in August

Wind speeds average 4 m/s (8 knots) during August. At this speed, expect moderate winds that can raise dust and move small branches. Since this is an average, some days have gentle light winds while others experience stronger breezes that are quite noticeable.

If you're a fan of comfortable temperatures and drier conditions, August is a great time to visit.