10-Day Weather Forecast - Longlake, SD

Partly sunny. Humid with highs in the upper 80s. Southeast winds 10 to 15 mph, becoming south in the afternoon.

Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Northwest winds 5 to 10 mph with gusts up to 20 mph, becoming northeast after midnight.

Mostly sunny. Highs in the upper 80s. East winds 10 to 15 mph, becoming southeast 15 to 20 mph in the afternoon.

Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the upper 60s. Southeast winds 15 to 20 mph.

Mostly clear. Hot. Highs in the lower 90s.

Mostly clear. Hot. Lows in the mid 60s.

Partly sunny. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent.

Mostly cloudy with a 50 percent chance of thunderstorms. Lows around 60.

Mostly cloudy with a 50 percent chance of thunderstorms. Highs in the upper 70s.

Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Lows around 60. Chance of rain 50 percent.

Mostly cloudy. A chance of showers with a slight chance of thunderstorms. Highs in the upper 70s. Chance of rain 50 percent.

Mostly clear in the evening, then partly cloudy with a slight chance of thunderstorms after midnight. Lows in the mid 50s. Chance of rain 20 percent.

Partly sunny. Highs in the mid 70s.

Mostly clear. Low temperature around 58F. Dew point will be around 58F with an average humidity of 81%. Winds will be 2 mph from the S.

Mostly sunny. High temperature around 73F. Dew point will be around 57F with an average humidity of 72%. Winds will be 5 mph from the SW.

Mostly clear. Low temperature around 56F. Dew point will be around 56F with an average humidity of 77%. Winds will be 3 mph from the W.

Mostly sunny. High temperature around 70F. Dew point will be around 55F with an average humidity of 73%. Winds will be 4 mph from the SW.

Mostly clear. Low temperature around 54F. Dew point will be around 54F with an average humidity of 77%. Winds will be 1 mph from the SW.