Summerville, Oregon Weather
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Weather Forecast for Summerville, Oregon : Union County
Issued: 10:52 pm PDT Sep 2, 2025 Latitude: 45.4884699 Longitude: -118.0029941 View on Google Maps

MouseOver for Detail Forecast
Tonight Wednesday Thursday Friday Saturday Sunday Monday Tuesday
Mostly Clear on Tonight Sunny on Wednesday Sunny on Thursday Sunny on Friday 40% chance of thunderstorms on Saturday 20% chance of thunderstorms on Sunday 20% chance of on Monday 20% chance of on Tuesday
Low: 59°F High: 100°F High: 97°F High: 95°F High: 84°F High: 83°F High: 81°F High: 75°F
Low: 60°F Low: 58°F Low: 59°F Low: 54°F Low: 53°F Low: 50°F  
Mostly Clear Sunny Sunny Sunny Thunderstorms Thunderstorms Partly Sunny Partly Sunny
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Current Conditions at
LA GRANDE - (KLGD)
73°
Clear
as of 10:56 PM PDST
Rel. Humidity: 35%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 30.09 in.
Flight Rule: VFR
Wind Data
5 MPH
230° Southwest
Cloud Level(s): Clear
Current Conditions at
PENDLETON - (KPDT)
73°
Clear
as of 10:53 PM PDST
Rel. Humidity: 33%
Dew Point: 43°F
Visibility: 10 Miles
Pressure: 30.00 in.
Flight Rule: VFR
Wind Data
9 MPH
120° Southeast
Cloud Level(s): Clear
Current Conditions at
WALLA WALLA - (KALW)
77°
Clear
as of 10:53 PM PDST
Rel. Humidity: 31%
Dew Point: 45°F
Visibility: 10 Miles
Pressure: 29.97 in.
Flight Rule: VFR
Wind Data
8 MPH
100° East
Cloud Level(s): Clear
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 59. North wind around 6 mph.
Sunny on Wednesday Wednesday... Widespread haze after 11am. Sunny and hot, with a high near 100. Calm wind becoming northwest 5 to 7 mph in the afternoon.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 60. Northwest wind 5 to 9 mph becoming light after midnight.
Sunny on Thursday Thursday... Sunny, with a high near 97. Calm wind becoming north around 6 mph in the afternoon.
Mostly Clear on Thursday Night Thursday Night... Mostly clear, with a low around 58. North wind 5 to 10 mph becoming northeast after midnight.
Sunny on Friday Friday... Sunny, with a high near 95.
Mostly Cloudy on Friday Night Friday Night... Mostly cloudy, with a low around 59.
40% chance of thunderstorms Saturday Saturday... A chance of showers, with thunderstorms also possible after 11am. Partly sunny, with a high near 84. Chance of precipitation is 40%.
40% chance of thunderstorms Saturday Night Saturday Night... A chance of showers and thunderstorms before 11pm, then a slight chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
20% chance of thunderstorms Sunday Sunday... A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 83.
10% chance of rain Sunday Night Sunday Night... A slight chance of showers. Mostly cloudy, with a low around 53.
20% chance of Monday Monday... A chance of showers. Partly sunny, with a high near 81.
20% chance of rain Monday Night Monday Night... A chance of showers. Mostly cloudy, with a low around 50.
20% chance of Tuesday Tuesday... A chance of showers. Partly sunny, with a high near 75.
Current Radar Image


Sun Almanac for Summerville, Oregon
Sunrise: 06:17 AM
Sunset: 7:26 PM
Civil Sunrise:05:46 AM
Civil Sunset: 7:56 PM
Nautical Sunrise: 05:10 AM
Nautical Sunset: 8:33 PM
Astro Sunrise: 04:31 AM
Astro Sunset: 9:11 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.