Great Falls Weather in October

Great Falls in October sees moderate daytime temperatures of 15°C (59°F) and nighttime lows of 2°C (36°F). Moderate rainfall is typical, with around 31 mm (1.2 in) for the month.

Rainfall in Great Falls in October

Looking at the last 30 years, the data shows about 7 days with rain, averaging 31 mm (1.2 in) for the month. Neither particularly heavy nor particularly frequent, the rain this month is about average. A light jacket should be enough on most wet days.

Temperature in Great Falls in October

Daytime highs in Great Falls in October reach 15°C (59°F), with nights around 2°C (36°F). Conditions are often most pleasant around the middle of the day. Nights drop to 2°C (36°F). Cold nights like these are actually great for sleeping well, as long as you have a warm enough duvet.

Sunshine in Great Falls in October

The month enjoys around 202 hours of sunshine, creating mostly sunny days despite the cool temperatures.

Wind Speed in Great Falls in October

Average wind conditions reach 5 m/s (10 knots) in October. This creates lively weather with fresh winds that make small trees sway noticeably. Remember this is an average: some days are less windy while others have particularly active windy conditions.

If your ideal day consists of dry skies and pleasant temperatures, June, August and September typically offer the best circumstances for Great Falls.

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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.

Great Falls Temperature in October

Min Temperature 2°C (36°F)  

Max Temperature 15°C (59°F)  

Chance of Rain 23%  

Precipitation 31 mm (1.2 in)  

Rainy days 7 days  

Humidity 47%  

Windspeed 5 m/s (10 knots)  

Sunshine 202 hours  

Percentage Sunshine  

What to Wear in Great Falls in October

The weather can swing between comfortable and chilly in October, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Light rain is possible, so consider bringing a small umbrella or rain jacket. And with plenty of sunshine hours, don’t forget sunglasses, sunscreen, and maybe a sun hat.

What To Do in Great Falls in October

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

Swimming

4/10

Cycling

6/10

Walking

6/10

Camping

5/10

Outdoor sports

10/10

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.