Union, Oregon Weather
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Weather Forecast for Union, Oregon : Union County
Issued: 10:15 am PDT Aug 25, 2025 Latitude: 45.2084696 Longitude: -117.8652126 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Tuesday Wednesday Thursday Friday Saturday Sunday
20% chance of on This Afternoon 20% chance of rain on Tonight 20% chance of thunderstorms on Tuesday 50% chance of thunderstorms on Wednesday 40% chance of thunderstorms on Thursday Mostly Sunny on Friday Sunny on Saturday Mostly Sunny on Sunday
High: 93°F Low: 62°F High: 93°F High: 85°F High: 84°F High: 87°F High: 87°F High: 88°F
Low: 63°F Low: 59°F Low: 56°F Low: 56°F Low: 56°F  
Partly Sunny Rain Thunderstorms Thunderstorms Thunderstorms Mostly Sunny Sunny Mostly Sunny
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Current Conditions at
LA GRANDE - (KLGD)
73°
Clear
as of 11:56 AM PDST
Rel. Humidity: 40%
Dew Point: 48°F
Visibility: 10 Miles
Pressure: 30.05 in.
Flight Rule: VFR
Wind Data
8 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
BAKER - (KBKE)
79°
Clear
as of 11:53 AM PDST
Rel. Humidity: 39%
Dew Point: 52°F
Visibility: 10 Miles
Pressure: 30.07 in.
Flight Rule: VFR
Wind Data
3 MPH
200° South
Cloud Level(s): Clear
Current Conditions at
PENDLETON - (KPDT)
90°
Clear
as of 11:53 AM PDST
Rel. Humidity: 19%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 29.96 in.
Flight Rule: VFR
Wind Data
7 MPH
290° West
Cloud Level(s): Clear
20% chance of This Afternoon This Afternoon... A 20 percent chance of showers after 2pm. Widespread haze. Partly sunny, with a high near 93. Southwest wind around 7 mph.
20% chance of rain Tonight Tonight... A 20 percent chance of showers before 11pm. Widespread haze before 11pm. Mostly cloudy, with a low around 62. Southwest wind 5 to 7 mph becoming light and variable after midnight.
20% chance of thunderstorms Tuesday Tuesday... A slight chance of showers between 11am and 2pm, then a slight chance of showers and thunderstorms after 2pm. Widespread haze after 11am. Mostly sunny, with a high near 93. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 20%.
40% chance of thunderstorms Tuesday Night Tuesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. North wind 5 to 7 mph becoming southeast after midnight. Chance of precipitation is 40%.
50% chance of thunderstorms Wednesday Wednesday... A chance of showers, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 85. Southeast wind around 6 mph becoming northwest in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
50% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.
40% chance of thunderstorms Thursday Thursday... A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 84. Chance of precipitation is 40%.
20% chance of rain Thursday Night Thursday Night... A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 56.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 87.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 56.
Sunny on Saturday Saturday... Sunny, with a high near 87.
Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 56.
Mostly Sunny on Sunday Sunday... Mostly sunny, with a high near 88.
Current Radar Image


Sun Almanac for Union, Oregon
Sunrise: 06:06 AM
Sunset: 7:41 PM
Civil Sunrise:05:35 AM
Civil Sunset: 8:12 PM
Nautical Sunrise: 04:57 AM
Nautical Sunset: 8:50 PM
Astro Sunrise: 04:17 AM
Astro Sunset: 9:30 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.