Great Falls 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Great Falls 7-day weather forecast

Stacker created the forecast for Great Falls, Montana using data from OpenWeather. This week's high is 93 °F on Sunday, while the low is 46 °F on Monday. There are expected to be 4 sunny days and rain on 5 days this week.

There are currently no weather alerts.

Monday, June 29

- High of 54 °F, low of 46 °F (95% humidity)
- Overcast with a 100% chance of rain (26 mm of rain)
- Fresh breeze (22 mph wind)
- Sunrise at 5:30 AM, sunset at 9:26 PM
- Full moon
1 / 6
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Tuesday, June 30

- High of 74 °F, low of 46 °F (48% humidity)
- Sunny with a 80% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (16 mph wind)
- Sunrise at 5:31 AM, sunset at 9:26 PM
2 / 6
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Wednesday, July 1

- High of 77 °F, low of 53 °F (40% humidity)
- Sunny with a 100% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:31 AM, sunset at 9:25 PM
3 / 6
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Thursday, July 2

- High of 80 °F, low of 52 °F (42% humidity)
- Sunny with a 80% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 5:32 AM, sunset at 9:25 PM
4 / 6
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Friday, July 3

- High of 79 °F, low of 55 °F (37% humidity)
- Mostly cloudy with a 66% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:33 AM, sunset at 9:25 PM
5 / 6
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Saturday, July 4

- High of 84 °F, low of 54 °F (26% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:33 AM, sunset at 9:25 PM
6 / 6
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Sunday, July 5

- High of 93 °F, low of 59 °F (26% humidity)
- Partly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:34 AM, sunset at 9:24 PM

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