Jefferson County, WA Weather Forecast
County weather hub
Rain And Snow Likely then Showers And Thunderstorms
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain and snow likely before 8am, then rain and snow likely between 8am and 11am, then showers and thunderstorms between 11am and 5pm, then rain. Mostly cloudy, with a high near 42. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters 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
- Jun 8 to Jun 12, 2026
- Latest sync
- Jun 5, 2026 10:19 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 59 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Wednesday at about 6 to 13 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 5, 2026 10:19 PM PDT
- Coverage
- 5 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
Rain before 2am, then a chance of rain and snow. Mostly cloudy, with a low around 39.
Rain and snow. Mostly cloudy, with a high near 41.
A chance of rain before 8pm, then a chance of rain and snow. Mostly cloudy, with a low around 37.
A slight chance of snow before 11am, then a chance of rain. Mostly sunny, with a high near 44.
A slight chance of rain before 11pm. Partly cloudy, with a low around 38.
Sunny, with a high near 52.
Mostly clear, with a low around 43.
Sunny, with a high near 59.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Rain And Snow Likely then Showers And Thunderstorms
|
42°F |
8 to 12 mph
S
|
|
Monday Night
Jun 8
|
Rain then Chance Rain And Snow
|
39°F |
6 to 10 mph
SW
|
|
Tuesday
Jun 9
|
Rain And Snow
|
41°F |
6 to 12 mph
W
|
|
Tuesday Night
Jun 9
|
Chance Rain And Snow
|
37°F |
6 to 12 mph
W
|
|
Wednesday
Jun 10
|
Slight Chance Light Snow then Chance Light Rain
|
44°F |
6 to 13 mph
W
|
|
Wednesday Night
Jun 10
|
Slight Chance Light Rain then Partly Cloudy
|
38°F |
6 to 13 mph
WSW
|
|
Thursday
Jun 11
|
Sunny
|
52°F |
6 to 10 mph
WSW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
43°F |
5 to 10 mph
N
|
|
Friday
Jun 12
|
Sunny
|
59°F |
5 to 9 mph
NW
|
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.
