10-Day Weather Forecast - Letcher, SD

Sunny, hot with highs in the upper 90s. Northeast winds around 5 mph, becoming east with gusts up to 20 mph in the afternoon.

Mostly clear in the evening, then partly cloudy with a chance of showers with a slight chance of thunderstorms after midnight. Humid with lows in the lower 70s. Southeast winds around 10 mph with gusts up to 20 mph. Chance of rain 40 percent.

Mostly sunny. A slight chance of showers and thunderstorms in the morning. Hot with highs in the upper 90s. Southeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 20 percent.

Partly cloudy with a slight chance of showers and thunderstorms. Humid with lows in the lower 70s. Southeast winds 10 to 15 mph. Chance of rain 20 percent.

Mostly sunny. A chance of showers and thunderstorms, mainly in the morning. Highs in the lower 90s. Chance of rain 40 percent.

Partly cloudy in the evening, then becoming mostly cloudy. A chance of thunderstorms. A chance of showers in the evening, then showers likely after midnight. Lows around 70. Chance of rain 60 percent.

Cloudy in the morning, then becoming partly sunny. A chance of showers and thunderstorms. Highs around 90. Chance of rain 50 percent.

A chance of thunderstorms in the evening. Mostly cloudy with a chance of showers. Lows around 70. Chance of rain 50 percent.

Partly sunny. Highs in the upper 80s.

Mostly clear. Lows in the lower 60s.

Mostly sunny. Highs in the mid 80s.

Partly cloudy. Lows around 60.

Mostly sunny. Highs in the lower 80s.

Mostly clear. Low temperature around 62F. Dew point will be around 60F with an average humidity of 75%. Winds will be 5 mph from the SE.

Partly cloudy. High temperature around 78F. Dew point will be around 60F with an average humidity of 68%. Winds will be 6 mph from the SE.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 62F. Dew point will be around 61F with an average humidity of 78%. Winds will be 5 mph from the SE.

Sunny. High temperature around 77F. Dew point will be around 59F with an average humidity of 67%. Winds will be 4 mph from the SE.

Clear. Low temperature around 60F. Dew point will be around 60F with an average humidity of 79%. Winds will be 3 mph from the SE.