Weather WorldUnion County, OR 7-Day Night Weather Forecast
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Union County, OR Weather Forecast
Union County, OR Weather Forecast Date: 1132 PM PDT Wed Sep 23 2026
The area/counties/county of: Grande Ronde Valley, including the cities of: Cove, Elgin, La Grande, and Union.or toggle through each period.
Rest of Tonight... Mostly clear. Lows in the 40s. Light wind.
Thursday... Partly cloudy in the morning then clearing. Highs in the mid 80s. Windy. Northeast wind 5 to 10 mph with gusts to around 20 mph shifting to the south 15 to 25 mph in the afternoon.
Thursday Night... Partly cloudy. Lows in the upper 40s to lower 50s. South wind 5 to 15 mph with gusts to around 30 mph.
Friday... Mostly cloudy with a 50% chance of rain showers. Highs in the upper 60s to lower 70s. Southwest wind 5 to 15 mph with gusts to around 30 mph.
Friday Night... Mostly clear. Lows in the upper 30s. West wind 5 to 15 mph with gusts to around 30 mph.
Saturday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the mid 30s to lower 40s.
Sunday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the mid 30s to lower 40s.
Monday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the mid 30s to lower 40s.
Tuesday... Partly cloudy. Highs in the lower 60s to lower 70s. Lows in the mid 30s to lower 40s.
POP = Probability of Precipitation
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