National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

Lat: 44.05°NLon: 103.05°WElev: 3202ft.

Overcast and Breezy

35°F

2°C

Humidity 82%
Wind Speed N 23 G 36 mph
Barometer 30.07 in (1018.6 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Wind Chill23°F (-5°C)
Last update 31 Mar 1:52 am MDT
Extended Forecast for

Rapid Valley SD

  • Overnight

    Overnight: A slight chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Wind chill values as low as 19. Breezy, with a north wind 17 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain/Snow and
    Breezy

  • Tuesday

    Tuesday: A chance of snow before 8am, then a chance of snow after 10am. Cloudy, with a high near 45. North wind 13 to 16 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 45 °F

    Chance Snow

  • Tuesday Night

    Tuesday Night: Snow likely. Mostly cloudy, with a low around 26. Wind chill values as low as 14. Southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely

  • Wednesday

    Wednesday: Snow before 2pm, then rain and snow. High near 43. Wind chill values as low as 14. Southeast wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 43 °F

    Snow Likely
    then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely before midnight, then a chance of snow between midnight and 2am, then a chance of rain and snow after 2am. Cloudy, with a low around 28. Southeast wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: A chance of rain and snow before 9am, then a chance of rain. Mostly cloudy, with a high near 54. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 54 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain before 2am, then rain and snow between 2am and 5am, then snow after 5am. Low around 28. East wind 8 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.

    Low: 28 °F

    Rain then
    Rain/Snow

  • Friday

    Friday: Snow. Mostly cloudy, with a high near 43. Breezy, with a northeast wind 8 to 13 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.

    High: 43 °F

    Snow and
    Breezy

  • Friday Night

    Friday Night: Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. Blustery.

    Low: 24 °F

    Snow Likely
    and Blustery

Detailed Forecast

Overnight
A slight chance of rain before 4am, then a slight chance of rain and snow. Mostly cloudy, with a low around 32. Wind chill values as low as 19. Breezy, with a north wind 17 to 24 mph, with gusts as high as 39 mph. Chance of precipitation is 20%.
Tuesday
A chance of snow before 8am, then a chance of snow after 10am. Cloudy, with a high near 45. North wind 13 to 16 mph becoming southeast in the afternoon. Winds could gust as high as 24 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tuesday Night
Snow likely. Mostly cloudy, with a low around 26. Wind chill values as low as 14. Southeast wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday
Snow before 2pm, then rain and snow. High near 43. Wind chill values as low as 14. Southeast wind 14 to 18 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely before midnight, then a chance of snow between midnight and 2am, then a chance of rain and snow after 2am. Cloudy, with a low around 28. Southeast wind 5 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A chance of rain and snow before 9am, then a chance of rain. Mostly cloudy, with a high near 54. Southeast wind 5 to 10 mph increasing to 11 to 16 mph in the afternoon. Winds could gust as high as 29 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday Night
Rain before 2am, then rain and snow between 2am and 5am, then snow after 5am. Low around 28. East wind 8 to 15 mph, with gusts as high as 28 mph. Chance of precipitation is 90%.
Friday
Snow. Mostly cloudy, with a high near 43. Breezy, with a northeast wind 8 to 13 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 34 mph.
Friday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around 24. Blustery.
Saturday
A chance of snow before noon. Mostly sunny, with a high near 49. Breezy.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 59.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Partly sunny, with a high near 55.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Rapid Valley SD
 44.06°N 103.15°W (Elev. 3107 ft)
Last Update:
1:32 am MDT Mar 31, 2026
Forecast Valid:
2am MDT Mar 31, 2026-6pm MDT Apr 6, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation