Fort Collins 7-day weather forecast

Written by:
September 8, 2025
ESOlex // Shutterstock

Fort Collins 7-day weather forecast

Stacker created the forecast for Fort Collins, Colorado using data from OpenWeather. This week's high is 88 °F on Wednesday, while the low is 56 °F on Wednesday. There are expected to be 3 sunny days and rain on 5 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 87 °F, low of 60 °F (13% humidity)
- Mostly cloudy with a 0% chance of rain
- High risk of harm from sun exposure (7 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 6:34 AM, sunset at 7:21 PM
1 / 6
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Tuesday, September 9

- High of 82 °F, low of 62 °F (19% humidity)
- Mostly cloudy with a 63% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 6:35 AM, sunset at 7:19 PM
2 / 6
Dmitry Naumov // Shutterstock

Wednesday, September 10

- High of 88 °F, low of 56 °F (28% humidity)
- Fair with a 37% 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 6:36 AM, sunset at 7:18 PM
3 / 6
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Thursday, September 11

- High of 86 °F, low of 62 °F (27% humidity)
- Partly cloudy with a 61% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Fresh breeze (20 mph wind)
- Sunrise at 6:37 AM, sunset at 7:16 PM
4 / 6
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Friday, September 12

- High of 82 °F, low of 61 °F (26% humidity)
- Overcast with a 37% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (7 mph wind)
- Sunrise at 6:38 AM, sunset at 7:14 PM
5 / 6
Andrzej Kubik // Shutterstock

Saturday, September 13

- High of 82 °F, low of 56 °F (13% humidity)
- Sunny with a 20% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 6:39 AM, sunset at 7:13 PM
6 / 6
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Sunday, September 14

- High of 86 °F, low of 57 °F (14% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:40 AM, sunset at 7:11 PM
- Last quarter moon

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