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Areas of Fire Weather and Severe Thunderstorms on Friday

Critical fire weather is expected Friday across the Northern Plains, Upper Midwest, and southern High Plains due to gusty winds and low humidity. Severe thunderstorms capable of large to very large hail, wind damage and tornadoes will be possible Friday and Saturday across parts of the central Plains. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

52°F

11°C

Humidity 32%
Wind Speed N 15 G 21 mph
Barometer 29.78 in (1006.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 15 May 4:52 am MDT
Extended Forecast for

Rapid City SD

  • Today

    Today: Sunny, with a high near 78. Northwest wind 7 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 29 mph.

    High: 78 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 45. Northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 82. Light and variable wind becoming southeast 11 to 16 mph in the morning. Winds could gust as high as 30 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Showers likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and midnight, then showers likely after midnight. Increasing clouds, with a low around 50. Southeast wind 5 to 14 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 50 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 68. Breezy, with a north wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 40 mph.

    High: 68 °F

    Chance
    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers likely, mainly after midnight. Mostly cloudy, with a low around 37. Breezy, with a north wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.

    Low: 37 °F

    Breezy.
    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: Showers, with thunderstorms also possible after noon. High near 43. Breezy. Chance of precipitation is 90%.

    High: 43 °F

    Showers and
    Breezy

  • Monday Night

    Monday Night: Showers likely, mainly before midnight. Mostly cloudy, with a low around 33. Breezy.

    Low: 33 °F

    Showers
    Likely and
    Breezy

  • Tuesday

    Tuesday: A slight chance of showers. Partly sunny, with a high near 53.

    High: 53 °F

    Slight Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 78. Northwest wind 7 to 14 mph becoming northeast in the afternoon. Winds could gust as high as 29 mph.
Tonight
Partly cloudy, with a low around 45. Northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Saturday
Sunny, with a high near 82. Light and variable wind becoming southeast 11 to 16 mph in the morning. Winds could gust as high as 30 mph.
Saturday Night
Showers likely before 9pm, then showers likely and possibly a thunderstorm between 9pm and midnight, then showers likely after midnight. Increasing clouds, with a low around 50. Southeast wind 5 to 14 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 68. Breezy, with a north wind 6 to 11 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 40 mph.
Sunday Night
Showers likely, mainly after midnight. Mostly cloudy, with a low around 37. Breezy, with a north wind 18 to 22 mph, with gusts as high as 40 mph. Chance of precipitation is 70%.
Monday
Showers, with thunderstorms also possible after noon. High near 43. Breezy. Chance of precipitation is 90%.
Monday Night
Showers likely, mainly before midnight. Mostly cloudy, with a low around 33. Breezy.
Tuesday
A slight chance of showers. Partly sunny, with a high near 53.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 41.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid City SD
 44.08°N 103.21°W (Elev. 3189 ft)
Last Update:
3:43 am MDT May 15, 2026
Forecast Valid:
5am MDT May 15, 2026-6pm MDT May 21, 2026
 
Forecast Discussion
 
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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