Jefferson County, WA Weather Forecast
County weather hub
Light Rain
Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain. Cloudy, with a high near 49. Southwest wind 6 to 12 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter 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
- Jul 26 to Aug 1, 2026
- Latest sync
- Jul 26, 2026 10:22 AM 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 60 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 14 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 26, 2026 10:22 AM PDT
- Coverage
- 8 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 chance of rain. Mostly cloudy. Low around 45, with temperatures rising to around 48 overnight. Southwest wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of rain after 7am. Mostly cloudy, with a high near 50. South southwest wind 6 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Rain. Mostly cloudy, with a low around 45. South southwest wind around 12 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain before 5pm. Mostly cloudy, with a high near 49. Southwest wind 8 to 14 mph. Chance of precipitation is 100%. New rainfall amounts between a tenth and quarter of an inch possible.
Partly cloudy, with a low around 42. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 54.
Partly cloudy, with a low around 44.
Sunny, with a high near 58.
Mostly clear, with a low around 47.
Sunny, with a high near 60.
A slight chance of rain after 5am. Partly cloudy, with a low around 48.
A slight chance of rain before 5pm. Mostly sunny, with a high near 54.
Partly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Jul 26
|
Light Rain
|
49°F |
6 to 12 mph
SW
|
|
Tonight
Jul 26
|
Chance Light Rain
|
45°F |
7 mph
SW
|
|
Monday
Jul 27
|
Chance Light Rain
|
50°F |
6 to 10 mph
SSW
|
|
Monday Night
Jul 27
|
Light Rain
|
45°F |
12 mph
SSW
|
|
Tuesday
Jul 28
|
Light Rain
|
49°F |
8 to 14 mph
SW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
42°F |
3 to 10 mph
NW
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
54°F |
2 to 7 mph
NW
|
|
Wednesday Night
Jul 29
|
Partly Cloudy
|
44°F |
3 to 7 mph
NNW
|
|
Thursday
Jul 30
|
Sunny
|
58°F |
3 to 8 mph
NW
|
|
Thursday Night
Jul 30
|
Mostly Clear
|
47°F |
3 to 8 mph
NW
|
|
Friday
Jul 31
|
Sunny
|
60°F |
3 to 9 mph
NW
|
|
Friday Night
Jul 31
|
Partly Cloudy then Slight Chance Light Rain
|
48°F |
5 to 9 mph
W
|
|
Saturday
Aug 1
|
Slight Chance Light Rain
|
54°F |
5 to 12 mph
W
|
|
Saturday Night
Aug 1
|
Partly Cloudy
|
43°F |
6 to 12 mph
WNW
|
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.
