Walla Walla County, WA Weather Forecast
County weather hub
Patchy Smoke
Compare major city weather across Walla Walla County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Patchy smoke. Clear. Low around 59, with temperatures rising to around 61 overnight. South wind around 9 mph.
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
- Jul 18 to Jul 24, 2026
- Latest sync
- Jul 18, 2026 4:29 AM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Walla Walla County
Tuesday looks like the warmest upcoming period in Walla Walla County at 100 degrees F.
Saturday Night is the coolest period ahead with temperatures near 58 degrees F.
The strongest winds are forecast for Saturday at about 9 to 13 mph SW.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 4:29 AM PDT
- Coverage
- 7 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
Patchy smoke before 8am. Sunny. High near 93, with temperatures falling to around 91 in the afternoon. Southwest wind 9 to 13 mph, with gusts as high as 22 mph.
Clear. Low around 58, with temperatures rising to around 60 overnight. Southwest wind 5 to 12 mph, with gusts as high as 18 mph.
Sunny, with a high near 93. Southwest wind around 7 mph.
Partly cloudy, with a low around 59. East wind around 5 mph.
Partly sunny, with a high near 96.
Mostly cloudy, with a low around 63.
Mostly sunny, with a high near 100.
Partly cloudy, with a low around 66.
Mostly sunny, with a high near 100.
Partly cloudy, with a low around 65.
A slight chance of rain showers after 5pm. Mostly sunny, with a high near 99.
A slight chance of rain showers before 11pm. Mostly clear, with a low around 64.
Sunny, with a high near 97.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 18
|
Patchy Smoke
|
59°F |
9 mph
S
|
|
Saturday
Jul 18
|
Patchy Smoke then Sunny
|
93°F |
9 to 13 mph
SW
|
|
Saturday Night
Jul 18
|
Clear
|
58°F |
5 to 12 mph
SW
|
|
Sunday
Jul 19
|
Sunny
|
93°F |
7 mph
SW
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
59°F |
5 mph
E
|
|
Monday
Jul 20
|
Partly Sunny
|
96°F |
5 mph
NE
|
|
Monday Night
Jul 20
|
Mostly Cloudy
|
63°F |
5 mph
NE
|
|
Tuesday
Jul 21
|
Mostly Sunny
|
100°F |
2 to 7 mph
SW
|
|
Tuesday Night
Jul 21
|
Partly Cloudy
|
66°F |
3 to 7 mph
S
|
|
Wednesday
Jul 22
|
Mostly Sunny
|
100°F |
5 to 8 mph
SW
|
|
Wednesday Night
Jul 22
|
Partly Cloudy
|
65°F |
8 mph
SW
|
|
Thursday
Jul 23
|
Mostly Sunny then Slight Chance Rain Showers
|
99°F |
8 mph
SW
|
|
Thursday Night
Jul 23
|
Slight Chance Rain Showers then Mostly Clear
|
64°F |
8 mph
S
|
|
Friday
Jul 24
|
Sunny
|
97°F |
8 to 12 mph
SW
|
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.
