Walla Walla County, WA Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Walla Walla County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 70.
County Weather Overview
This county weather page brings together forecast coverage for Walla Walla County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Walla Walla County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 30 to Jun 1, 2026
- Latest sync
- May 26, 2026 8:37 AM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Walla Walla County
Monday looks like the warmest upcoming period in Walla Walla County at 82 degrees F.
Saturday Night is the coolest period ahead with temperatures near 44 degrees F.
The strongest winds are forecast for Saturday at about 13 to 20 mph SW.
The forecast from May 30 through Jun 1 stays mostly dry.
Forecast Details
- Last updated
- May 26, 2026 8:37 AM PDT
- Coverage
- 4 days
- Time zone
- America/Los_Angeles
- Forecast office
- PDT
- Radar station
- KPDT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 44.
Sunny, with a high near 73.
Mostly clear, with a low around 45.
Sunny, with a high near 82.
Mostly clear, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Sunny
|
70°F |
13 to 20 mph
SW
|
|
Saturday Night
May 30
|
Partly Cloudy
|
44°F |
9 to 13 mph
S
|
|
Sunday
May 31
|
Sunny
|
73°F |
7 to 10 mph
SW
|
|
Sunday Night
May 31
|
Mostly Clear
|
45°F |
3 to 7 mph
S
|
|
Monday
Jun 1
|
Sunny
|
82°F |
2 to 8 mph
N
|
|
Monday Night
Jun 1
|
Mostly Clear
|
50°F |
3 to 8 mph
NE
|
Major City Forecasts
Live forecast snapshots for major cities across Walla Walla County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Walla Walla County.
Largest mapped city population in this region: 33,096.
