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 perfect 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 perfect 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.

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Check the conditions for any month of the year.

• January
• February
• March
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• May
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• August

• September
• October
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• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Great Falls's climate page.

Great Falls Temperature in August

Min Temperature 11°C (52°F)  

Max Temperature 29°C (84°F)  

Chance of Rain 23%  

Precipitation 31 mm (1.2 in)  

Rainy days 7 days  

Humidity 38%  

Windspeed 4 m/s (8 knots)  

Sunshine 328 hours  

Percentage Sunshine  

What to Wear in Great Falls in August

Warm temperatures in August make for comfortable sightseeing weather. Pack breathable fabrics like cotton shirts, knee-length shorts or skirts, and comfortable walking shoes. A thin long sleeve for indoor spaces is handy. Pack a light rain jacket or compact umbrella for occasional showers. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.

What To Do in Great Falls in August

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Swimming

10/10

Cycling

8/10

Walking

8/10

Barbeque

10/10

Camping

10/10

Outdoor sports

8/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit the United States of America, check out our Great Falls's climate page.

More climate data for Great Falls

Temperature Rainfall Sunshine Humidity Wind Speed

See the full Great Falls climate overview or explore weather in the United States of America.