10-Day Weather Forecast - Keystone, SD
As of
- 38|34°F70% Chance of SnowHourly details
Today
38°FCloudy with a chance of rain. Snow likely in the morning, then a chance of snow in the afternoon. Widespread fog in the morning. Areas of fog in the afternoon. Snow accumulation up to 1 inch. Highs in the upper 30s. East winds 5 to 10 mph. Chance of precipitation 70 percent.
Tonight
34°FBecoming partly cloudy. Widespread fog in the evening, then areas of fog after midnight. Lows around 30. South winds 5 to 10 mph. Gusts up to 20 mph after midnight.
- 61|36°FPartly CloudyHourly details
Day
61°FPartly cloudy in the morning, then clearing. Highs in the mid 50s. Southwest winds 10 to 15 mph with gusts up to 40 mph.
Night
36°FMostly clear. Lows in the lower 30s. West winds 5 to 10 mph. Gusts up to 30 mph, decreasing to 20 mph after midnight.
- 57|35°FMostly SunnyHourly details
Day
57°FMostly sunny. Highs in the upper 50s.
Night
35°FMostly clear. Lows in the mid 30s.
- 60|37°FMostly SunnyHourly details
Day
60°FMostly sunny. Highs around 60.
Night
37°FPartly cloudy. Lows in the upper 30s.
- 60|37°FPartly CloudyHourly details
Day
60°FPartly cloudy. Highs in the upper 50s.
Night
37°FPartly cloudy with a slight chance of rain in the evening, then mostly cloudy with a chance of rain after midnight. Lows in the upper 30s. Chance of rain 30 percent.
Weekend Weather
- 46|45°F30% Chance of RainHourly details
Day
46°FBecoming partly cloudy. A 30 percent chance of rain. Highs in the lower 50s.
Night
45°FPartly cloudy. Lows in the upper 30s.
- 54|41°FPartly Cloudy
Day
54°FPartly cloudy. Highs in the mid 50s.
Night
41°FPartly cloudy. Low temperature around 41F. Dew point will be around 41F with an average humidity of 91%. Winds will be 7 mph from the S.
- 66|37°F30% Chance of Rain
Day
66°FCloudy with a slight chance of rain. Chance of precipitation 30%. High temperature around 66F. Dew point will be around 46F with an average humidity of 58%. Winds will be 9 mph from the SSW.
Night
37°FCloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 37F. Dew point will be around 26F with an average humidity of 82%. Winds will be 16 mph from the N.
- 41|32°F50% Chance of Rain
Day
41°FPartly cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 41F. Dew point will be around 25F with an average humidity of 49%. Winds will be 14 mph from the NW.
Night
32°FMostly cloudy with a chance of rain-snow mix. Chance of precipitation 35%. Low temperature around 32F. Dew point will be around 18F with an average humidity of 58%. Winds will be 20 mph from the WNW.











