Boulder 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Boulder 7-day weather forecast

created the forecast for Boulder, Colorado using data from . This week's high is 100 掳F on Friday, while the low is 53 掳F on Tuesday. There are expected to be 5 sunny days and rain on 3 days this week.

NWS Denver CO has issued a heat advisory until Tuesday at 06:00 PM.

Monday, August 3

- High of 99 掳F, low of 70 掳F (10% humidity)
- Mostly cloudy with a 20% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:01 AM, sunset at 8:13 PM
You may also like: Highest-rated Chinese restaurants in Boulder
1 / 6
aco // Shutterstock

Tuesday, August 4

- High of 83 掳F, low of 53 掳F (28% humidity)
- Sunny with a 30% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (10 UV index)
- Gentle breeze (10 mph wind)
- Sunrise at 6:02 AM, sunset at 8:12 PM
2 / 6
Rachasie // Shutterstock

Wednesday, August 5

- High of 93 掳F, low of 60 掳F (9% humidity)
- Mostly sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:03 AM, sunset at 8:10 PM
- Last quarter moon
3 / 6
Andrzej Kubik // Shutterstock

Thursday, August 6

- High of 97 掳F, low of 62 掳F (7% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:04 AM, sunset at 8:09 PM
4 / 6
New Africa // Shutterstock

Friday, August 7

- High of 100 掳F, low of 69 掳F (6% humidity)
- Sunny with a 0% chance of rain
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (13 mph wind)
- Sunrise at 6:05 AM, sunset at 8:08 PM
5 / 6
LeManna // Shutterstock

Saturday, August 8

- High of 100 掳F, low of 73 掳F (6% humidity)
- Mostly 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 6:06 AM, sunset at 8:07 PM
You may also like: Cities with the most expensive homes in the Boulder metro area
6 / 6
Dmitry Naumov // Shutterstock

Sunday, August 9

- High of 99 掳F, low of 73 掳F (11% humidity)
- Overcast with a 20% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Moderate breeze (15 mph wind)
- Sunrise at 6:07 AM, sunset at 8:06 PM

Trending Now