Boulder 7-day weather forecast

Written by:
March 23, 2026
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Boulder 7-day weather forecast

created the forecast for Boulder, Colorado using data from . This week's high is 87 掳F on Friday, while the low is 51 掳F on Thursday. There are expected to be 3 sunny days and rain on 5 days this week.

There are currently no weather alerts.

Monday, May 25

- High of 83 掳F, low of 56 掳F (22% humidity)
- Partly cloudy with a 57% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (17 mph wind)
- Sunrise at 5:38 AM, sunset at 8:18 PM
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1 / 6
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Tuesday, May 26

- High of 74 掳F, low of 55 掳F (38% humidity)
- Mostly cloudy with a 99% chance of rain (2 mm of rain)
- Very high risk of harm from sun exposure (8 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 5:37 AM, sunset at 8:19 PM
2 / 6
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Wednesday, May 27

- High of 70 掳F, low of 52 掳F (58% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- High risk of harm from sun exposure (5 UV index)
- Gentle breeze (12 mph wind)
- Sunrise at 5:36 AM, sunset at 8:19 PM
3 / 6
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Thursday, May 28

- High of 82 掳F, low of 51 掳F (37% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (8 mph wind)
- Sunrise at 5:36 AM, sunset at 8:20 PM
4 / 6
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Friday, May 29

- High of 87 掳F, low of 58 掳F (14% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (11 mph wind)
- Sunrise at 5:35 AM, sunset at 8:21 PM
5 / 6
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Saturday, May 30

- High of 72 掳F, low of 55 掳F (38% humidity)
- Mostly cloudy with a 74% chance of rain (3 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 5:35 AM, sunset at 8:22 PM
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6 / 6
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Sunday, May 31

- High of 73 掳F, low of 53 掳F (50% humidity)
- Mostly sunny with a 100% chance of rain (14 mm of rain)
- Very high risk of harm from sun exposure (11 UV index)
- Light breeze (7 mph wind)
- Sunrise at 5:34 AM, sunset at 8:23 PM
- Full moon

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