National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 9:22 am MDT May 4, 2026
 
Today

Today: A 30 percent chance of showers after noon.  Mostly cloudy, with a high near 58. Breezy, with a northwest wind around 25 mph, with gusts as high as 43 mph.
Chance
Showers and
Breezy
Tonight

Tonight: A 20 percent chance of showers before midnight.  Mostly cloudy, with a low around 33. Breezy, with a northwest wind 17 to 22 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 37 mph.
Slight Chance
Showers and
Breezy then
Mostly Cloudy
Tuesday

Tuesday: A 30 percent chance of showers after noon.  Partly sunny, with a high near 52. North wind 6 to 16 mph, with gusts as high as 29 mph.
Partly Sunny
then Chance
Showers
Tuesday
Night
Tuesday Night: A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and midnight.  Partly cloudy, with a low around 28. North wind 5 to 15 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.
Slight Chance
Rain/Snow
then Partly
Cloudy
Wednesday

Wednesday: Mostly sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 22 mph.
Mostly Sunny

Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 32. Northwest wind 5 to 9 mph becoming southwest in the evening. Winds could gust as high as 20 mph.
Partly Cloudy

Thursday

Thursday: A 20 percent chance of showers after noon.  Mostly sunny, with a high near 67. West wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Mostly Sunny
then Slight
Chance
Showers
Thursday
Night
Thursday Night: A chance of showers, mainly before midnight.  Mostly cloudy, with a low around 38. North wind 5 to 14 mph becoming west after midnight. Winds could gust as high as 28 mph.
Chance
Showers

Friday

Friday: A slight chance of showers, then a chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 70.
Chance
Showers

Hi 58 °F Lo 33 °F Hi 52 °F Lo 28 °F Hi 55 °F Lo 32 °F Hi 67 °F Lo 38 °F Hi 70 °F

 

Today
 
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 58. Breezy, with a northwest wind around 25 mph, with gusts as high as 43 mph.
Tonight
 
A 20 percent chance of showers before midnight. Mostly cloudy, with a low around 33. Breezy, with a northwest wind 17 to 22 mph decreasing to 6 to 11 mph after midnight. Winds could gust as high as 37 mph.
Tuesday
 
A 30 percent chance of showers after noon. Partly sunny, with a high near 52. North wind 6 to 16 mph, with gusts as high as 29 mph.
Tuesday Night
 
A slight chance of rain and snow showers before 11pm, then a slight chance of snow showers between 11pm and midnight. Partly cloudy, with a low around 28. North wind 5 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday
 
Mostly sunny, with a high near 55. North wind 5 to 10 mph, with gusts as high as 22 mph.
Wednesday Night
 
Partly cloudy, with a low around 32. Northwest wind 5 to 9 mph becoming southwest in the evening. Winds could gust as high as 20 mph.
Thursday
 
A 20 percent chance of showers after noon. Mostly sunny, with a high near 67. West wind 5 to 14 mph becoming north in the afternoon. Winds could gust as high as 25 mph.
Thursday Night
 
A chance of showers, mainly before midnight. Mostly cloudy, with a low around 38. North wind 5 to 14 mph becoming west after midnight. Winds could gust as high as 28 mph.
Friday
 
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly sunny, with a high near 70.
Friday Night
 
A slight chance of showers after midnight. Partly cloudy, with a low around 43.
Saturday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 69.
Saturday Night
 
A chance of showers and thunderstorms. Mostly cloudy, with a low around 42.
Sunday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 69.

 

Forecast from NOAA-NWS for Rapid Valley SD.