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 71 °F on Monday, while the low is 42 °F on Monday. There is expected to be 1 sunny day and rain on 4 days this week.

There are currently no weather alerts.

Monday, June 8

- High of 71 °F, low of 42 °F (22% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Fresh breeze (19 mph wind)
- Sunrise at 5:28 AM, sunset at 9:20 PM
- Last quarter moon
1 / 6
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Tuesday, June 9

- High of 70 °F, low of 50 °F (38% humidity)
- Overcast with a 0% chance of rain
- Very high risk of harm from sun exposure (7 UV index)
- Fresh breeze (23 mph wind)
- Sunrise at 5:28 AM, sunset at 9:20 PM
2 / 6
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Wednesday, June 10

- High of 60 °F, low of 44 °F (38% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Fresh breeze (24 mph wind)
- Sunrise at 5:28 AM, sunset at 9:21 PM
3 / 6
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Thursday, June 11

- High of 68 °F, low of 45 °F (53% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 5:27 AM, sunset at 9:22 PM
4 / 6
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Friday, June 12

- High of 71 °F, low of 46 °F (48% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:27 AM, sunset at 9:22 PM
5 / 6
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Saturday, June 13

- High of 56 °F, low of 45 °F (77% humidity)
- Partly cloudy with a 100% chance of rain (10 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (14 mph wind)
- Sunrise at 5:27 AM, sunset at 9:23 PM
6 / 6
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Sunday, June 14

- High of 57 °F, low of 45 °F (58% humidity)
- Mostly cloudy with a 100% chance of rain (4 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:27 AM, sunset at 9:23 PM
- New moon

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