Boulder 7-day weather forecast

Written by:
September 29, 2025
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Boulder 7-day weather forecast

Stacker created the forecast for Boulder, Colorado using data from OpenWeather. This week's high is 80 °F on Thursday, while the low is 42 °F on Monday. There are expected to be 3 sunny days and rain on 3 days this week.

There are currently no weather alerts.

Monday, October 6

- High of 57 °F, low of 42 °F (78% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (6 mph wind)
- Sunrise at 7:02 AM, sunset at 6:35 PM
- Full moon
1 / 6
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Tuesday, October 7

- High of 63 °F, low of 44 °F (55% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:03 AM, sunset at 6:33 PM
2 / 6
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Wednesday, October 8

- High of 77 °F, low of 49 °F (20% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 7:04 AM, sunset at 6:32 PM
3 / 6
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Thursday, October 9

- High of 80 °F, low of 54 °F (19% humidity)
- Sunny with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 7:05 AM, sunset at 6:30 PM
4 / 6
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Friday, October 10

- High of 70 °F, low of 57 °F (37% humidity)
- Overcast with a 0% chance of rain
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:06 AM, sunset at 6:29 PM
5 / 6
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Saturday, October 11

- High of 74 °F, low of 59 °F (35% humidity)
- Mostly cloudy with a 28% chance of rain (0 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 7:07 AM, sunset at 6:27 PM
6 / 6
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Sunday, October 12

- High of 64 °F, low of 50 °F (55% humidity)
- Mostly cloudy with a 100% chance of rain (3 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Gentle breeze (9 mph wind)
- Sunrise at 7:08 AM, sunset at 6:26 PM

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