Weather WorldUnion County, SC 7-Day Night Weather Forecast
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Union County, SC Weather Forecast
Union County, SC Weather Forecast Date: 637 AM EDT Fri Sep 25 2026
The area/counties/county of: Union, including the cities of: Union and Monarch Mills.or toggle through each period.
Today... Sunny. Highs in the mid 70s. North winds 5 to 10 mph.
Tonight... Clear. Lows in the upper 40s. North winds around 5 mph in the evening, becoming light and variable.
Saturday... Sunny. Highs around 80. Light and variable winds, becoming northwest around 5 mph in the afternoon.
Saturday Night... Clear. Lows in the upper 40s. Light and variable winds.
Sunday... Sunny. Highs in the lower 80s. Light and variable winds, becoming northwest around 5 mph in the afternoon.
Sunday Night... Mostly clear. Lows in the lower 50s.
Monday... Sunny. Highs in the mid 80s.
Monday Night... Clear. Lows in the lower 50s.
Tuesday... Sunny. Highs in the mid 80s.
Tuesday Night... Clear. Lows in the upper 50s.
Wednesday... Sunny. Highs in the upper 80s.
Wednesday Night... Partly cloudy. Lows in the lower 60s.
POP = Probability of Precipitation
Union County Radar Loop
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