Boulder County, CO Weather Forecast
County weather hub
Chance Rain Showers
Compare major city weather across Boulder County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers. Partly sunny, with a high near 55. East wind 0 to 7 mph. Chance of precipitation is 30%.
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
- Oct 13 to Oct 17, 2026
- Latest sync
- Oct 11, 2026 5:08 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 62 degrees F.
Thursday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Saturday Night at about 0 to 8 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 11, 2026 5:08 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
Rain showers. Cloudy, with a low around 42. Chance of precipitation is 80%.
Rain showers before noon, then showers and thunderstorms. Cloudy, with a high near 44.
Showers and thunderstorms likely. Mostly cloudy, with a low around 39.
A chance of rain showers. Partly sunny, with a high near 49.
A chance of rain showers. Mostly cloudy, with a low around 37.
Sunny, with a high near 50.
Mostly clear, with a low around 39.
Sunny, with a high near 62.
Mostly clear, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Chance Rain Showers
|
55°F |
0 to 7 mph
E
|
|
Tuesday Night
Oct 13
|
Rain Showers
|
42°F |
2 mph
ENE
|
|
Wednesday
Oct 14
|
Rain Showers
|
44°F |
1 to 5 mph
ENE
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
39°F |
2 mph
NNW
|
|
Thursday
Oct 15
|
Chance Rain Showers
|
49°F |
3 mph
NNW
|
|
Thursday Night
Oct 15
|
Chance Rain Showers
|
37°F |
2 mph
NNW
|
|
Friday
Oct 16
|
Sunny
|
50°F |
0 to 5 mph
SE
|
|
Friday Night
Oct 16
|
Mostly Clear
|
39°F |
0 to 3 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
62°F |
0 to 3 mph
W
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
46°F |
0 to 8 mph
NW
|
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.
