Jefferson County, WA Weather Forecast
County weather hub
Chance Rain And Snow
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain and snow. Partly sunny, with a high near 43. West northwest wind 12 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
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 1 of 1 mapped cities in Jefferson County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 20, 2026 11:24 PM PDT
- Forecast office
- SEW
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson County
Friday looks like the warmest upcoming period in Jefferson County at 52 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Wednesday at about 12 to 16 mph WNW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 11:24 PM PDT
- Coverage
- 6 days
- Time zone
- America/Los_Angeles
- Forecast office
- SEW
- Radar station
- KLGX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 34. Northwest wind 6 to 12 mph. Chance of precipitation is 20%.
Mostly sunny, with a high near 49.
Mostly clear, with a low around 36.
Sunny, with a high near 52.
Partly cloudy, with a low around 37.
Mostly sunny, with a high near 52.
Partly cloudy, with a low around 37.
Mostly sunny, with a high near 48.
Partly cloudy, with a low around 35.
A slight chance of rain and snow after 11am. Mostly sunny, with a high near 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Chance Rain And Snow
|
43°F |
12 to 16 mph
WNW
|
|
Wednesday Night
Apr 22
|
Slight Chance Rain And Snow then Partly Cloudy
|
34°F |
6 to 12 mph
NW
|
|
Thursday
Apr 23
|
Mostly Sunny
|
49°F |
6 to 12 mph
NNW
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
36°F |
7 to 12 mph
N
|
|
Friday
Apr 24
|
Sunny
|
52°F |
12 mph
N
|
|
Friday Night
Apr 24
|
Partly Cloudy
|
37°F |
7 to 10 mph
NNE
|
|
Saturday
Apr 25
|
Mostly Sunny
|
52°F |
10 mph
N
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
37°F |
6 to 10 mph
NNE
|
|
Sunday
Apr 26
|
Mostly Sunny
|
48°F |
10 mph
WNW
|
|
Sunday Night
Apr 26
|
Partly Cloudy
|
35°F |
3 to 10 mph
NW
|
|
Monday
Apr 27
|
Slight Chance Rain And Snow
|
46°F |
3 to 12 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Jefferson County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Jefferson County.
Largest mapped city population in this region: 9,973.
