Washington County, ID Weather Forecast
County weather hub
Cloudy
Compare major city weather across Washington County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Cloudy, with a high near 69. South southeast wind 5 to 14 mph.
County Weather Overview
This county weather page brings together forecast coverage for Washington 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 Washington County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 8 to Jun 13, 2026
- Latest sync
- Jun 6, 2026 11:48 PM MDT
- Forecast office
- BOI
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington County
Saturday looks like the warmest upcoming period in Washington County at 79 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 43 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 16 mph WSW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 6, 2026 11:48 PM MDT
- Coverage
- 6 days
- Time zone
- America/Boise
- Forecast office
- BOI
- Radar station
- KCBX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Rain showers likely before 3am, then showers and thunderstorms likely. Mostly cloudy, with a low around 49. South southwest wind 8 to 12 mph, with gusts as high as 21 mph. Chance of precipitation is 60%.
Rain showers likely before noon, then showers and thunderstorms likely. Mostly cloudy, with a high near 66. Chance of precipitation is 70%.
Partly cloudy, with a low around 43.
Sunny, with a high near 65.
Mostly clear, with a low around 43.
Sunny, with a high near 70.
Clear, with a low around 47.
Sunny, with a high near 76.
Clear, with a low around 50.
Sunny, with a high near 79.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jun 8
|
Cloudy
|
69°F |
5 to 14 mph
SSE
|
|
Monday Night
Jun 8
|
Rain Showers Likely
|
49°F |
8 to 12 mph
SSW
|
|
Tuesday
Jun 9
|
Rain Showers Likely
|
66°F |
8 to 16 mph
WSW
|
|
Tuesday Night
Jun 9
|
Partly Cloudy
|
43°F |
6 to 13 mph
NW
|
|
Wednesday
Jun 10
|
Sunny
|
65°F |
5 to 10 mph
WNW
|
|
Wednesday Night
Jun 10
|
Mostly Clear
|
43°F |
6 to 12 mph
NNW
|
|
Thursday
Jun 11
|
Sunny
|
70°F |
6 mph
NW
|
|
Thursday Night
Jun 11
|
Clear
|
47°F |
8 mph
NNW
|
|
Friday
Jun 12
|
Sunny
|
76°F |
5 to 8 mph
NNW
|
|
Friday Night
Jun 12
|
Clear
|
50°F |
6 to 9 mph
NNW
|
|
Saturday
Jun 13
|
Sunny
|
79°F |
5 to 8 mph
NNW
|
Major City Forecasts
Live forecast snapshots for major cities across Washington County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Washington County.
Largest mapped city population in this region: 5,376.
