Jefferson County, CO Weather Forecast
County weather hub
Mostly Cloudy then Rain Showers Likely
Compare major city weather across Jefferson 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. Chance of precipitation is 60%.
County Weather Overview
This county weather page brings together forecast coverage for Jefferson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 8 of 8 mapped cities in Jefferson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 11 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 3:40 AM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson County
Saturday looks like the warmest upcoming period in Jefferson County at 60 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Monday at about 8 to 20 mph WSW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 3:40 AM MDT
- Coverage
- 5 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 36.
Mostly sunny, with a high near 59.
Partly cloudy, with a low around 35.
A chance of snow showers after noon. Mostly sunny, with a high near 53.
A chance of rain and snow showers. Mostly cloudy, with a low around 28. New snow accumulation of less than one inch possible.
Snow showers before noon, then snow showers and a slight chance of thunderstorms. Cloudy, with a high near 44. New snow accumulation of 1 to 2 inches possible.
Snow showers likely. Mostly cloudy, with a low around 26. New snow accumulation of 1 to 2 inches possible.
A chance of snow showers. Partly sunny, with a high near 51.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Apr 11
|
Mostly Cloudy then Rain Showers Likely
|
60°F |
8 to 14 mph
SW
|
|
Saturday Night
Apr 11
|
Chance Rain Showers then Partly Cloudy
|
36°F |
12 mph
WSW
|
|
Sunday
Apr 12
|
Mostly Sunny
|
59°F |
9 to 14 mph
SW
|
|
Sunday Night
Apr 12
|
Partly Cloudy
|
35°F |
6 to 14 mph
WSW
|
|
Monday
Apr 13
|
Mostly Sunny then Chance Snow Showers
|
53°F |
8 to 20 mph
WSW
|
|
Monday Night
Apr 13
|
Chance Rain And Snow Showers
|
28°F |
2 to 17 mph
W
|
|
Tuesday
Apr 14
|
Snow Showers
|
44°F |
5 to 12 mph
NNW
|
|
Tuesday Night
Apr 14
|
Snow Showers Likely
|
26°F |
5 to 8 mph
NW
|
|
Wednesday
Apr 15
|
Chance Snow Showers
|
51°F |
6 to 9 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Jefferson County.
Coverage
Forecast coverage currently spans 8 of 8 mapped cities in Jefferson County.
Largest mapped city population in this region: 157,429.
