10-Day Weather Forecast - Long Valley, SD

Mostly cloudy. A chance of rain in the afternoon. Highs in the mid 40s. West winds 5 to 10 mph increasing to northwest 10 to 20 mph with gusts up to 30 mph in the afternoon. Chance of rain 40 percent.

Mostly cloudy. A chance of rain in the evening then a slight chance of rain and snow after midnight. Little or no snow accumulation. Lows in the upper 20s. Northwest winds 10 to 20 mph. Chance of precipitation 40 percent.

Partly cloudy. Highs in the upper 40s. West winds 10 to 15 mph with gusts up to 25 mph.

Partly cloudy. Lows in the mid 30s. West winds 10 to 20 mph with gusts up to 30 mph.

Mostly sunny and breezy. Highs in the lower 60s.

Clear. Lows in the lower 30s.

Mostly sunny. Highs in the lower 50s.

Mostly clear. Lows in the upper 20s.

Mostly sunny in the morning then becoming partly cloudy. Highs in the lower 50s.

Partly cloudy. Lows in the mid 20s.

Partly cloudy. Highs in the mid 50s.

Partly cloudy. Lows in the lower 30s.

Partly cloudy. Highs in the upper 50s.

Clear. Low temperature around 36F. Dew point will be around 28F with an average humidity of 63%. Winds will be 7 mph from the S.

Mostly sunny. High temperature around 50F. Dew point will be around 29F with an average humidity of 51%. Winds will be 6 mph from the SW.

Partly cloudy with a slight chance of rain. Chance of precipitation 30%. Low temperature around 33F. Dew point will be around 31F with an average humidity of 78%. Winds will be 3 mph from the S.

Cloudy with a chance of rain. Chance of precipitation 35%. High temperature around 42F. Dew point will be around 31F with an average humidity of 72%. Winds will be 4 mph from the SW.

Cloudy with a slight chance of rain-snow mix. Chance of precipitation 30%. Low temperature around 31F. Dew point will be around 30F with an average humidity of 88%. Winds will be 3 mph from the S.