10-Day Weather Forecast - Union, SC

Sunny, hot with highs in the mid 90s. Light and variable winds, becoming south around 5 mph in the afternoon. Heat index values up to 102.

Mostly clear. lows in the mid 70s. Light and variable winds.

Sunny, hot with highs in the mid 90s. Light and variable winds. Heat index values up to 103.

Partly cloudy. Lows in the lower 70s.

Mostly sunny in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.

Showers likely with a chance of thunderstorms. Lows in the upper 60s. Chance of rain 60 percent.

Partly sunny. Highs in the mid 80s.

Partly cloudy. Lows in the mid 60s.

Mostly sunny. Highs in the upper 80s.

Mostly clear. Lows in the mid 60s.

Sunny. Highs around 90.

Mostly clear. Low temperature around 68F. Dew point will be around 67F with an average humidity of 83%. Winds will be 2 mph from the E.

Sunny. High temperature around 87F. Dew point will be around 68F with an average humidity of 70%. Winds will be 1 mph from the S.

Clear. Low temperature around 70F. Dew point will be around 69F with an average humidity of 83%. Winds will be 1 mph from the SE.

Mostly sunny with widely scattered thunderstorms. Chance of storms 25%. High temperature around 87F. Dew point will be around 68F with an average humidity of 71%. Winds will be 1 mph from the SW.

Mostly clear with a 30% chance for rain and thunderstorms. Low temperature around 69F. Dew point will be around 68F with an average humidity of 83%. Winds will be 1 mph from the SE.