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 98 °F on Sunday, while the low is 47 °F on Monday. There are expected to be 4 sunny days and rain on 2 days this week.

There are currently no weather alerts.

Monday, July 6

- High of 77 °F, low of 47 °F (53% humidity)
- Partly sunny with a 20% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 5:35 AM, sunset at 9:24 PM
1 / 6
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Tuesday, July 7

- High of 85 °F, low of 51 °F (49% humidity)
- Sunny with a 100% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:36 AM, sunset at 9:23 PM
- Last quarter moon
2 / 6
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Wednesday, July 8

- High of 91 °F, low of 60 °F (25% humidity)
- Mostly cloudy with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:36 AM, sunset at 9:23 PM
3 / 6
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Thursday, July 9

- High of 82 °F, low of 59 °F (21% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Fresh breeze (21 mph wind)
- Sunrise at 5:37 AM, sunset at 9:22 PM
4 / 6
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Friday, July 10

- High of 87 °F, low of 56 °F (26% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:38 AM, sunset at 9:22 PM
5 / 6
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Saturday, July 11

- High of 95 °F, low of 61 °F (28% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:39 AM, sunset at 9:21 PM
6 / 6
Stepan Bessmelnitsin // Shutterstock

Sunday, July 12

- High of 98 °F, low of 66 °F (26% humidity)
- Partly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:40 AM, sunset at 9:20 PM

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