National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 10:27 pm MST Feb 1, 2026
 
Tonight

Tonight: Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 23. Light and variable wind.
Patchy Fog

 Monday

Monday: Mostly sunny, with a high near 55. Wind chill values as low as 20 early. Breezy, with a northwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 41 mph.
Mostly Sunny
and Breezy

 Monday
Night
Monday Night: Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 24 mph.
Partly Cloudy

 Tuesday

Tuesday: A 30 percent chance of rain, mainly between 11am and 5pm. Partly sunny, with a high near 49. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.
Chance Rain
and Breezy

 Tuesday
Night
Tuesday Night: A slight chance of rain before 8pm, then a slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 25. Northwest wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
then Partly
Cloudy
 Wednesday

Wednesday: Mostly sunny, with a high near 53. Northwest wind 5 to 7 mph becoming south in the afternoon. Winds could gust as high as 16 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Mostly cloudy, with a low around 34. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
Mostly Cloudy

 Thursday

Thursday: Sunny, with a high near 67. Northwest wind 10 to 18 mph, with gusts as high as 32 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 30.
Mostly Clear
Lo 23 °F Hi 55 °F Lo 27 °F Hi 49 °F Lo 25 °F Hi 53 °F Lo 34 °F Hi 67 °F Lo 30 °F

 

Tonight
 
 Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 23. Light and variable wind.
Monday
 
 Mostly sunny, with a high near 55. Wind chill values as low as 20 early. Breezy, with a northwest wind 9 to 14 mph increasing to 19 to 24 mph in the afternoon. Winds could gust as high as 41 mph.
Monday Night
 
 Partly cloudy, with a low around 27. Northwest wind 5 to 10 mph, with gusts as high as 24 mph.
Tuesday
 
 A 30 percent chance of rain, mainly between 11am and 5pm. Partly sunny, with a high near 49. Breezy, with a northwest wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.
Tuesday Night
 
 A slight chance of rain before 8pm, then a slight chance of snow between 8pm and 11pm. Partly cloudy, with a low around 25. Northwest wind 8 to 16 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Wednesday
 
 Mostly sunny, with a high near 53. Northwest wind 5 to 7 mph becoming south in the afternoon. Winds could gust as high as 16 mph.
Wednesday Night
 
 Mostly cloudy, with a low around 34. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 22 mph.
Thursday
 
 Sunny, with a high near 67. Northwest wind 10 to 18 mph, with gusts as high as 32 mph.
Thursday Night
 
 Mostly clear, with a low around 30.
Friday
 
 Sunny, with a high near 56.
Friday Night
 
 Mostly clear, with a low around 28.
Saturday
 
 Mostly sunny, with a high near 59.
Saturday Night
 
 Partly cloudy, with a low around 28.
Sunday
 
 Mostly sunny, with a high near 60.

 

Forecast from NOAA-NWS for Rapid Valley SD.