Umatilla County, OR Weather Forecast
County weather hub
Showers And Thunderstorms Likely
Compare major city weather across Umatilla County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Showers and thunderstorms likely after 5pm. Partly sunny. High near 84, with temperatures falling to around 82 in the afternoon. Northeast wind around 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Umatilla County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Umatilla County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 28 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:47 PM PDT
- Forecast office
- PDT
- Source
- NOAA / NWS
Daily Outlook
This Week in Umatilla County
This Afternoon looks like the warmest upcoming period in Umatilla County at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 42 degrees F.
The strongest winds are forecast for Friday at about 5 to 23 mph W.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- May 28, 2026 6:47 PM PDT
- Coverage
- 8 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
Showers and thunderstorms likely before 11pm. Partly cloudy. Low around 50, with temperatures rising to around 53 overnight. Southeast wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 11am and 5pm. Partly sunny. High near 70, with temperatures falling to around 66 in the afternoon. West wind 5 to 23 mph, with gusts as high as 36 mph. Chance of precipitation is 20%.
Mostly cloudy, with a low around 43. Southwest wind 6 to 21 mph, with gusts as high as 32 mph.
Sunny, with a high near 66. West wind 6 to 14 mph, with gusts as high as 23 mph.
Partly cloudy, with a low around 42.
Mostly sunny, with a high near 70.
Partly cloudy, with a low around 44.
Mostly sunny, with a high near 77.
Partly cloudy, with a low around 46.
Sunny, with a high near 82.
Partly cloudy, with a low around 50.
Mostly sunny, with a high near 82.
Partly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
May 28
|
Showers And Thunderstorms Likely
|
84°F |
5 mph
NE
|
|
Tonight
May 28
|
Showers And Thunderstorms Likely then Partly Cloudy
|
50°F |
5 to 10 mph
SE
|
|
Friday
May 29
|
Slight Chance Rain Showers
|
70°F |
5 to 23 mph
W
|
|
Friday Night
May 29
|
Mostly Cloudy
|
43°F |
6 to 21 mph
SW
|
|
Saturday
May 30
|
Sunny
|
66°F |
6 to 14 mph
W
|
|
Saturday Night
May 30
|
Partly Cloudy
|
42°F |
5 to 13 mph
SW
|
|
Sunday
May 31
|
Mostly Sunny
|
70°F |
5 to 9 mph
W
|
|
Sunday Night
May 31
|
Partly Cloudy
|
44°F |
3 to 8 mph
SW
|
|
Monday
Jun 1
|
Mostly Sunny
|
77°F |
1 to 8 mph
NW
|
|
Monday Night
Jun 1
|
Partly Cloudy
|
46°F |
3 to 8 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
82°F |
1 to 8 mph
NE
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
50°F |
3 to 8 mph
SE
|
|
Wednesday
Jun 3
|
Mostly Sunny
|
82°F |
3 to 10 mph
W
|
|
Wednesday Night
Jun 3
|
Partly Cloudy
|
49°F |
5 to 10 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Umatilla County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Umatilla County.
Largest mapped city population in this region: 17,791.
