10-Day Weather Forecast - Gann Valley, SD
- 14|4°FPartly SunnyHourly details
Today
14°FPartly sunny this morning then becoming mostly cloudy. Much colder with highs around 16. Northwest winds 10 to 15 mph. Wind chill values as low as 21 below.
Tonight
4°FPartly cloudy. Lows around 1 above. North winds 5 to 10 mph becoming south after midnight.
- 22|17°F70% Chance of SnowHourly details
Day
22°FMostly cloudy. Snow likely in the afternoon. Snow accumulation around an inch possible. Highs in the lower 20s. Southeast winds 5 to 10 mph becoming south in the afternoon. Chance of snow 70 percent.
Night
17°FMostly cloudy in the evening then becoming partly cloudy. Not as cold with lows around 12. West winds around 10 mph with gusts up to 20 mph.
- 26|10°F40% Chance of SnowHourly details
Day
26°FPartly sunny. A chance of snow mainly in the morning. Patchy blowing snow in the afternoon. Little or no snow accumulation. Windy with highs in the upper 20s. Temperature falling to around 20 in the afternoon. Northwest winds 20 to 30 mph with gusts up to 40 mph. Chance of snow 40 percent.
Night
10°FPartly cloudy. Lows zero to 5 above zero.
- 15|-6°FMostly CloudyHourly details
Day
15°FMostly cloudy. Highs 15 to 20. Lows around 10 below. Wind chill values as low as 30 below.
Night
-6°FMostly cloudy. Highs 15 to 20. Lows around 10 below. Wind chill values as low as 30 below.
- -2|-8°FPartly CloudyHourly details
Day
-2°FPartly cloudy. Cold. Highs around zero. Lows 10 below to 15 below zero. Wind chill values as low as 30 below.
Night
-8°FPartly cloudy. Cold. Highs around zero. Lows 10 below to 15 below zero. Wind chill values as low as 30 below.
Weekend Weather
- 6|1°FPartly SunnyHourly details
Day
6°FPartly sunny with a 20 percent chance of snow. Not as cold with highs around 10 above. Wind chill values as low as 30 below.
Night
1°FMostly cloudy. Not as cold with lows 5 below to zero.
- 20|4°FPartly Sunny
Day
20°FPartly sunny. Not as cold with highs in the lower 20s.
Night
4°FMostly clear. Low temperature around 4F. Dew point will be around 7F with an average humidity of 83%. Winds will be 5 mph from the E.
- 18|9°FSunny
Day
18°FSunny. High temperature around 18F. Dew point will be around 5F with an average humidity of 78%. Winds will be 2 mph from the W.
Night
9°FMostly cloudy. Low temperature around 9F. Dew point will be around 6F with an average humidity of 80%. Winds will be 3 mph from the E.
- 16|8°FCloudy
Day
16°FCloudy. High temperature around 16F. Dew point will be around 8F with an average humidity of 78%. Winds will be 2 mph from the NW.
Night
8°FPartly cloudy. Low temperature around 8F. Dew point will be around 6F with an average humidity of 80%. Winds will be 2 mph from the N.
- 18|13°FSunny
Day
18°FSunny. High temperature around 18F. Dew point will be around 9F with an average humidity of 76%. Winds will be 3 mph from the W.
Night
13°FPartly cloudy. Low temperature around 13F. Dew point will be around 9F with an average humidity of 77%. Winds will be 3 mph from the SE.














