10-Day Weather Forecast - Jefferson, SD

Mostly cloudy in the morning, then becoming mostly sunny. Patchy smoke. Humid with highs in the upper 80s. East winds around 5 mph.

Mostly clear. Patchy smoke. Humid with lows in the upper 60s. Southeast winds around 5 mph.

Mostly sunny. Humid with highs in the upper 80s. Southeast winds 5 to 10 mph.

Mostly clear in the evening, then becoming partly cloudy. Humid with lows around 70. Southeast winds 5 to 10 mph.

Mostly cloudy with a slight chance of showers and thunderstorms 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 with a chance of thunderstorms. Lows in the mid 60s. Chance of rain 80 percent.

Mostly cloudy in the morning, then becoming mostly sunny. Highs around 80.

Mostly clear. Lows in the mid 60s.

Mostly sunny. Highs in the lower 80s.

Clear. Lows in the lower 60s.

Sunny. Highs in the upper 80s.

Mostly clear. Lows in the mid 60s.

Mostly sunny. Highs in the mid 80s.

Clear. Low temperature around 73F. Dew point will be around 67F with an average humidity of 63%. Winds will be 7 mph from the S.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 84F. Dew point will be around 67F with an average humidity of 65%. Winds will be 2 mph from the NW.

Clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 62F with an average humidity of 64%. Winds will be 4 mph from the NE.

Mostly sunny. High temperature around 79F. Dew point will be around 63F with an average humidity of 69%. Winds will be 3 mph from the NE.

Clear. Low temperature around 66F. Dew point will be around 61F with an average humidity of 66%. Winds will be 1 mph from the E.