10-Day Weather Forecast - Okaton, SD

Partly sunny. A slight chance of thunderstorms in the afternoon. Some thunderstorms may be severe. Breezy hot with highs in the upper 90s. East winds 10 to 15 mph becoming southeast 15 to 25 mph with gusts up to 35 mph in the afternoon. Chance of rain 20 percent.

Mostly cloudy. A chance of thunderstorms mainly in the evening. Humid with lows in the mid 60s. South winds 15 to 20 mph with gusts up to 35 mph becoming northwest 10 to 15 mph after midnight. Chance of rain 50 percent.

Mostly cloudy in the morning then becoming partly sunny. Not as warm with highs in the mid 80s. North winds around 10 mph with gusts up to 20 mph.

Partly cloudy. Lows in the lower 60s. Northeast winds 5 to 10 mph with gusts up to 20 mph becoming east after midnight.

Partly sunny. A chance of thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40 percent.

Mostly cloudy. A chance of thunderstorms in the evening. Lows in the lower 60s. Chance of rain 40 percent.

Partly sunny. Hot with highs in the lower 90s.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Mostly clear and breezy hot. Lows in the upper 60s. Highs around 100. Heat index values up to 100.

Clear with scattered thunderstorms. Chance of storms 35%. Low temperature around 76F. Dew point will be around 56F with an average humidity of 35%. Winds will be 9 mph from the SE.

Sunny with scattered thunderstorms. Chance of storms 55%. High temperature around 99F. Dew point will be around 58F with an average humidity of 38%. Winds will be 6 mph from the SE.

Clear with scattered thunderstorms. Chance of storms 55%. Low temperature around 72F. Dew point will be around 58F with an average humidity of 42%. Winds will be 8 mph from the SE.

Sunny. High temperature around 97F. Dew point will be around 58F with an average humidity of 42%. Winds will be 6 mph from the SE.

Clear. Low temperature around 72F. Dew point will be around 58F with an average humidity of 44%. Winds will be 7 mph from the SE.