Union County, OR Weather Forecast

County weather hub

78°
F

Sunny

Compare major city weather across Union County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Saturday, August 29, 2026
Wind: 3 to 16 mph NW
Saturday

Sunny, with a high near 78.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Union 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 Union County.

Page Snapshot

Page focus
county weather
Forecast window
Aug 29 to Aug 31, 2026
Latest sync
Aug 25, 2026 6:10 AM PDT
Forecast office
PDT
Source
NOAA / NWS
Next High
78°F
Saturday
Next Low
44°F
Saturday Night
Rain Outlook
0
Periods mentioning precipitation
Windiest
3 to 16 mph
Saturday

Daily Outlook

Today
Aug 29
Sunny
78 °F
/ 44°F
Wind 3 to 16 mph
Sun
Aug 30
Sunny
80 °F
/ 46°F
Wind 2 to 7 mph
Mon
Aug 31
Sunny
86 °F
Wind 1 to 10 mph

This Week in Union County

Monday looks like the warmest upcoming period in Union County at 86 degrees F.

Saturday Night is the coolest period ahead with temperatures near 44 degrees F.

The strongest winds are forecast for Saturday at about 3 to 16 mph NW.

The forecast from Aug 29 through Aug 31 stays mostly dry.

Forecast Details

Last updated
Aug 25, 2026 6:10 AM PDT
Coverage
3 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 source

Extended Forecast

Saturday Night
Aug 29
44°F
Partly Cloudy
3 to 16 mph W

Partly cloudy, with a low around 44.

Sunday
Aug 30
80°F
Sunny
2 to 7 mph W

Sunny, with a high near 80.

Sunday Night
Aug 30
46°F
Mostly Clear
2 to 7 mph W

Mostly clear, with a low around 46.

Monday
Aug 31
86°F
Sunny
1 to 10 mph S

Sunny, with a high near 86.

Detailed Forecast

Period Conditions Temp Wind
Saturday
Aug 29
Sunny
78°F
3 to 16 mph
NW
Saturday Night
Aug 29
Partly Cloudy
44°F
3 to 16 mph
W
Sunday
Aug 30
Sunny
80°F
2 to 7 mph
W
Sunday Night
Aug 30
Mostly Clear
46°F
2 to 7 mph
W
Monday
Aug 31
Sunny
86°F
1 to 10 mph
S

Coverage

Tracked cities
3
Coverage
100%

Forecast coverage currently spans 3 of 3 mapped cities in Union County.

Largest mapped city population in this region: 13,399.

Union County Courthouse  La Grande  Oregon
Union County Courthouse La Grande Oregon image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.