Boulder, CO 14-Day Forecast
Colorado, United States 🇺🇸
94°
Sunny right now
Today: high 96°, low 55°
Updated just now
Boulder weather for the next 14 days
Friday, August 7
Sunny High 97° Low 61°Precipitation
1%
· 0.0 in
Max wind
10 mph
Humidity
11%
UV index
10 - Very High
Sunrise / sunset
06:05 AM / 08:08 PM
Saturday, August 8
Sunny High 99° Low 65°Precipitation
17%
· 0.0 in
Max wind
20 mph
Humidity
15%
UV index
8 - High
Sunrise / sunset
06:06 AM / 08:07 PM
Sunday, August 9
Sunny High 96° Low 66°Precipitation
17%
· 0.0 in
Max wind
18 mph
Humidity
20%
UV index
9 - Very High
Sunrise / sunset
06:07 AM / 08:06 PM
Monday, August 10
Sunny High 94° Low 64°Precipitation
36%
· 0.03 in
Max wind
22 mph
Humidity
33%
UV index
8 - Very High
Sunrise / sunset
06:08 AM / 08:04 PM
Tuesday, August 11
Sunny High 92° Low 58°Precipitation
3%
· 0.0 in
Max wind
14 mph
Humidity
33%
UV index
8 - Very High
Sunrise / sunset
06:09 AM / 08:03 PM
Wednesday, August 12
Sunny High 97° Low 63°Precipitation
1%
· 0.0 in
Max wind
16 mph
Humidity
25%
UV index
9 - Very High
Sunrise / sunset
06:09 AM / 08:02 PM
Thursday, August 13
Sunny High 84° Low 62°Precipitation
36%
· 0.03 in
Max wind
17 mph
Humidity
38%
UV index
7 - High
Sunrise / sunset
06:10 AM / 08:00 PM
Friday, August 14
Sunny High 91° Low 56°Precipitation
2%
· 0.0 in
Max wind
10 mph
Humidity
44%
UV index
8 - Very High
Sunrise / sunset
06:11 AM / 07:59 PM
Saturday, August 15
Sunny High 81° Low 56°Precipitation
65%
· 0.29 in
Max wind
12 mph
Humidity
64%
UV index
6 - High
Sunrise / sunset
06:12 AM / 07:58 PM
Sunday, August 16
Sunny High 84° Low 51°Precipitation
4%
· 0.0 in
Max wind
7 mph
Humidity
59%
UV index
7 - High
Sunrise / sunset
06:13 AM / 07:56 PM
Monday, August 17
Sunny High 87° Low 56°Precipitation
1%
· 0.0 in
Max wind
15 mph
Humidity
37%
UV index
8 - Very High
Sunrise / sunset
06:14 AM / 07:55 PM
Tuesday, August 18
Partly Cloudy High 89° Low 62°Precipitation
3%
· 0.0 in
Max wind
10 mph
Humidity
26%
UV index
8 - Very High
Sunrise / sunset
06:15 AM / 07:54 PM
Wednesday, August 19
Sunny High 92° Low 62°Precipitation
2%
· 0.0 in
Max wind
12 mph
Humidity
23%
UV index
8 - Very High
Sunrise / sunset
06:16 AM / 07:52 PM
Boulder 14-day outlook: the story
The warmest day of Boulder's 14-day outlook is Saturday, August 8 with a high near 99°F (37°C); the coolest night comes Sunday, August 16, dipping to 51°F (10°C). The trend points cooler: week two runs about 9°F below week one. Highs over the next two weeks average 96°F (36°C), about 13°F (7°C) above the typical August high of 83°F (28°C).
Precipitation is most likely on Saturday 15; the wettest day looks like Saturday, August 15 with about 0.29 in (7.4 mm) expected. For the weekend, expect Saturday 99°F (37°C) and sunny / Sunday 96°F (36°C) and sunny.
For typical conditions month by month, see the Boulder climate & average temperatures guide.
Boulder forecast questions
Will it rain in Boulder this week?
The forecast currently shows meaningful precipitation chances on 1 of the next 14 days, peaking around Saturday, August 15.
What will be the warmest day in Boulder over the next 14 days?
Saturday, August 8, with a forecast high near 99°F (37°C).
How accurate is a 14-day forecast for Boulder?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Boulder by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 38° | 17° | 6 | 1.0 in | 7.9 h/day | 61% |
| February | 39° | 15° | 7 | 1.4 in | 9.1 h/day | 61% |
| March | 49° | 24° | 8 | 2.1 in | 10.1 h/day | 61% |
| April | 57° | 31° | 10 | 2.3 in | 10.9 h/day | 58% |
| May | 65° | 41° | 15 | 4.6 in | 11.7 h/day | 64% |
| June | 80° | 54° | 8 | 1.9 in | 13.0 h/day | 52% |
| July | 85° | 59° | 9 | 1.5 in | 13.1 h/day | 50% |
| August | 83° | 58° | 8 | 1.4 in | 12.3 h/day | 50% |
| September | 78° | 52° | 6 | 1.0 in | 11.2 h/day | 47% |
| October | 63° | 38° | 6 | 1.3 in | 9.7 h/day | 53% |
| November | 49° | 27° | 6 | 1.3 in | 8.5 h/day | 57% |
| December | 42° | 20° | 5 | 0.9 in | 7.8 h/day | 56% |
14-day forecasts nearby