10-Day Weather Forecast - Union Center, SD

Mostly cloudy with a slight chance of showers and thunderstorms in the morning then partly cloudy with a chance of showers and thunderstorms in the afternoon. Some thunderstorms may be severe in the afternoon. Highs in the upper 80s. East winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent.

Mostly cloudy. A chance of showers and thunderstorms in the evening. Some thunderstorms may be severe. Lows in the upper 50s. Northeast winds 10 to 20 mph with gusts up to 30 mph diminishing to 5 to 10 mph with gusts up to 20 mph after midnight. Chance of rain 50 percent.

Becoming partly cloudy. Highs in the lower 80s. Northeast winds 5 to 10 mph. Gusts up to 20 mph in the afternoon.

Partly cloudy with a slight chance of showers and thunderstorms. Lows around 60. Southeast winds 10 to 15 mph. Chance of rain 20 percent.

Partly cloudy. A slight chance of showers and thunderstorms in the morning then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows around 60. Chance of rain 30 percent.

Partly cloudy in the morning then clearing. Highs in the mid 90s.

Mostly clear. Lows in the upper 60s.

Mostly sunny and breezy hot with highs around 100.

Clear breezy with lows around 70.

Mostly sunny and breezy hot with highs around 104.

Mostly clear and breezy. Lows in the lower 70s.

Mostly sunny and breezy hot with highs around 101.

Clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 72F. Dew point will be around 50F with an average humidity of 33%. Winds will be 11 mph from the SE.

Sunny with scattered thunderstorms. Chance of storms 50%. High temperature around 97F. Dew point will be around 55F with an average humidity of 35%. Winds will be 9 mph from the SE.

Mostly clear with scattered thunderstorms. Chance of storms 45%. Low temperature around 71F. Dew point will be around 53F with an average humidity of 40%. Winds will be 12 mph from the SE.

Sunny with scattered thunderstorms. Chance of storms 35%. High temperature around 95F. Dew point will be around 56F with an average humidity of 38%. Winds will be 10 mph from the SE.

Clear with widely scattered thunderstorms. Chance of storms 30%. Low temperature around 71F. Dew point will be around 54F with an average humidity of 42%. Winds will be 11 mph from the SE.