Boulder County, CO Weather Forecast
County weather hub
Mostly Cloudy then Rain Showers Likely
Compare major city weather across Boulder County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers likely after noon. Mostly cloudy, with a high near 60. West southwest wind 8 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
County Weather Overview
This county weather page brings together forecast coverage for Boulder County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 4 of 4 mapped cities in Boulder County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:28 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Boulder County
Saturday looks like the warmest upcoming period in Boulder County at 60 degrees F.
Monday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Monday at about 6 to 23 mph WSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:28 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before midnight. Partly cloudy, with a low around 41. Chance of precipitation is 40%.
Mostly sunny, with a high near 60.
Partly cloudy, with a low around 39.
A chance of rain showers after noon. Mostly sunny, with a high near 56.
Rain showers likely before 9pm, then rain and snow showers likely. Mostly cloudy, with a low around 34.
Snow showers likely before 9am, then rain and snow showers likely between 9am and noon, then a slight chance of thunderstorms and rain and snow showers. Mostly cloudy, with a high near 46. New snow accumulation of less than half an inch possible.
Rain and snow showers likely. Mostly cloudy, with a low around 34. New snow accumulation of less than half an inch possible.
A chance of snow showers before 3pm, then a chance of rain showers. Partly sunny, with a high near 53.
Mostly clear, with a low around 37.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Cloudy then Rain Showers Likely
|
60°F |
8 to 13 mph
WSW
|
|
Saturday Night
Apr 11
|
Chance Rain Showers then Partly Cloudy
|
41°F |
13 mph
WSW
|
|
Sunday
Apr 12
|
Mostly Sunny
|
60°F |
9 to 16 mph
WSW
|
|
Sunday Night
Apr 12
|
Partly Cloudy
|
39°F |
6 to 14 mph
WSW
|
|
Monday
Apr 13
|
Mostly Sunny then Chance Rain Showers
|
56°F |
6 to 23 mph
WSW
|
|
Monday Night
Apr 13
|
Rain And Snow Showers Likely
|
34°F |
3 to 21 mph
W
|
|
Tuesday
Apr 14
|
Slight Chance T-storms
|
46°F |
5 to 18 mph
WNW
|
|
Tuesday Night
Apr 14
|
Rain And Snow Showers Likely
|
34°F |
7 to 14 mph
WNW
|
|
Wednesday
Apr 15
|
Chance Snow Showers
|
53°F |
8 to 13 mph
W
|
|
Wednesday Night
Apr 15
|
Mostly Clear
|
37°F |
5 to 12 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Boulder County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Boulder County.
Largest mapped city population in this region: 107,645.
