National Weather Service Forecast for: Rapid Valley SD
Issued by: National Weather Service Rapid City, SD
Updated: 6:49 pm MDT Jun 22, 2025
 
Tonight

Tonight: A 20 percent chance of showers before 9pm.  Partly cloudy, with a low around 48. North wind 5 to 15 mph, with gusts as high as 25 mph.
Slight Chance
Showers then
Partly Cloudy
Monday

Monday: Sunny, with a high near 76. Northwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Sunny

Monday
Night
Monday Night: Partly cloudy, with a low around 53. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Partly Cloudy

Tuesday

Tuesday: A 40 percent chance of showers and thunderstorms after noon.  Partly sunny, with a high near 79. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Mostly Sunny
then Chance
T-storms
Tuesday
Night
Tuesday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight.  Cloudy, with a low around 59. East wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph.  Chance of precipitation is 70%.
Showers
Likely then
Chance
T-storms
Wednesday

Wednesday: A chance of showers, with thunderstorms also possible after 3pm.  Partly sunny, with a high near 80. East wind 5 to 10 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.
Slight Chance
Showers then
Chance
T-storms
Wednesday
Night
Wednesday Night: A 40 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 55. East wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Chance
T-storms then
Partly Cloudy
Thursday

Thursday: A slight chance of showers and thunderstorms after noon.  Sunny, with a high near 86. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Sunny then
Slight Chance
T-storms
Thursday
Night
Thursday Night: Mostly clear, with a low around 61.
Mostly Clear

Lo 48 °F Hi 76 °F Lo 53 °F Hi 79 °F Lo 59 °F Hi 80 °F Lo 55 °F Hi 86 °F Lo 61 °F

 

Tonight
 
A 20 percent chance of showers before 9pm. Partly cloudy, with a low around 48. North wind 5 to 15 mph, with gusts as high as 25 mph.
Monday
 
Sunny, with a high near 76. Northwest wind 5 to 10 mph becoming east in the afternoon. Winds could gust as high as 20 mph.
Monday Night
 
Partly cloudy, with a low around 53. East wind 5 to 10 mph becoming south after midnight. Winds could gust as high as 20 mph.
Tuesday
 
A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 79. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
 
Showers likely and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Cloudy, with a low around 59. East wind 10 to 15 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Wednesday
 
A chance of showers, with thunderstorms also possible after 3pm. Partly sunny, with a high near 80. East wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Wednesday Night
 
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. East wind 5 to 10 mph becoming west after midnight. Winds could gust as high as 15 mph.
Thursday
 
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 86. West wind 5 to 10 mph becoming southeast in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
 
Mostly clear, with a low around 61.
Friday
 
Sunny, with a high near 92.
Friday Night
 
A slight chance of showers and thunderstorms. Mostly clear, with a low around 62.
Saturday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
 
A chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Sunday
 
A chance of showers and thunderstorms. Mostly sunny, with a high near 82.

 

Forecast from NOAA-NWS for Rapid Valley SD.