National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 12:26 am MST Feb 2, 2026
 
Overnight

Overnight: Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 33. Calm wind becoming northeast around 5 mph.
Patchy Fog

 Monday

Monday: Mostly sunny, with a high near 54. Breezy, with a northwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.
Mostly Sunny
and Breezy

 Monday
Night
Monday Night: Partly cloudy, with a low around 25. West wind 5 to 13 mph, with gusts as high as 23 mph.
Partly Cloudy

 Tuesday

Tuesday: A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 48. Breezy, with a northwest wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.
Chance Rain
and Breezy

 Tuesday
Night
Tuesday Night: A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 24. Northwest wind 8 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Slight Chance
Rain/Snow
then Mostly
Clear
 Wednesday

Wednesday: Mostly sunny, with a high near 53. West wind 5 to 8 mph becoming south in the morning. Winds could gust as high as 16 mph.
Mostly Sunny

 Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 34. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Partly Cloudy

 Thursday

Thursday: Sunny, with a high near 64. Northwest wind 10 to 16 mph, with gusts as high as 31 mph.
Sunny

 Thursday
Night
Thursday Night: Mostly clear, with a low around 30.
Mostly Clear
Lo 33 °F Hi 54 °F Lo 25 °F Hi 48 °F Lo 24 °F Hi 53 °F Lo 34 °F Hi 64 °F Lo 30 °F

 

Overnight
 
 Patchy fog after 2am. Otherwise, mostly cloudy, with a steady temperature around 33. Calm wind becoming northeast around 5 mph.
Monday
 
 Mostly sunny, with a high near 54. Breezy, with a northwest wind 10 to 15 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 38 mph.
Monday Night
 
 Partly cloudy, with a low around 25. West wind 5 to 13 mph, with gusts as high as 23 mph.
Tuesday
 
 A 40 percent chance of rain after 11am. Mostly cloudy, with a high near 48. Breezy, with a northwest wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.
Tuesday Night
 
 A slight chance of rain and snow before 11pm. Partly cloudy, with a low around 24. Northwest wind 8 to 17 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Wednesday
 
 Mostly sunny, with a high near 53. West wind 5 to 8 mph becoming south in the morning. Winds could gust as high as 16 mph.
Wednesday Night
 
 Partly cloudy, with a low around 34. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday
 
 Sunny, with a high near 64. Northwest wind 10 to 16 mph, with gusts as high as 31 mph.
Thursday Night
 
 Mostly clear, with a low around 30.
Friday
 
 Sunny, with a high near 57.
Friday Night
 
 Mostly clear, with a low around 29.
Saturday
 
 Mostly sunny, with a high near 54.
Saturday Night
 
 Partly cloudy, with a low around 28.
Sunday
 
 Mostly sunny, with a high near 61.

 

Forecast from NOAA-NWS for Rapid Valley SD.