On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

23°C

74°F

Humidity 67%
Wind Speed E 15 km/h
Barometer 29.84 in (1007.9 mb)
Dewpoint 17°C (62°F)
Visibility 16 km
Last update 5 Sep 9:52 am MDT
Extended Forecast for

Rapid City SD

  • Today

    Today: Isolated showers and thunderstorms before 1pm.  Mostly sunny, with a high near 32. North wind 8 to 18 km/h becoming south in the afternoon. Winds could gust as high as 26 km/h.  Chance of precipitation is 20%.

    Isolated
    T-storms

    High: 32 °C

  • Tonight

    Tonight: Partly cloudy, with a low around 16. West wind 13 to 18 km/h becoming northwest 24 to 29 km/h after midnight.

    Partly Cloudy

    Low: 16 °C

  • Sunday

    Sunday: Mostly sunny, with a high near 24. Northwest wind 22 to 27 km/h decreasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 35 km/h.

    Mostly Sunny

    High: 24 °C

  • Sunday
    Night

    Sunday Night: A 20 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 12. Northeast wind 8 to 13 km/h becoming southwest after midnight. Winds could gust as high as 24 km/h.

    Mostly Clear
    then Slight
    Chance
    T-storms

    Low: 12 °C

  • Labor
    Day

    Labor Day: A 20 percent chance of showers and thunderstorms before 7am.  Mostly sunny, with a high near 25. South wind 8 to 14 km/h becoming north in the afternoon.

    Slight Chance
    T-storms then
    Sunny

    High: 25 °C

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 10. North wind 10 to 16 km/h.

    Partly Cloudy

    Low: 10 °C

  • Tuesday

    Tuesday: Mostly sunny, with a high near 24.

    Mostly Sunny

    High: 24 °C

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 12.

    Partly Cloudy

    Low: 12 °C

  • Wednesday

    Wednesday: Mostly sunny, with a high near 26.

    Mostly Sunny

    High: 26 °C

Detailed Forecast

Today
Isolated showers and thunderstorms before 1pm. Mostly sunny, with a high near 32. North wind 8 to 18 km/h becoming south in the afternoon. Winds could gust as high as 26 km/h. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 16. West wind 13 to 18 km/h becoming northwest 24 to 29 km/h after midnight.
Sunday
Mostly sunny, with a high near 24. Northwest wind 22 to 27 km/h decreasing to 11 to 16 km/h in the afternoon. Winds could gust as high as 35 km/h.
Sunday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 12. Northeast wind 8 to 13 km/h becoming southwest after midnight. Winds could gust as high as 24 km/h.
Labor Day
A 20 percent chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 25. South wind 8 to 14 km/h becoming north in the afternoon.
Monday Night
Partly cloudy, with a low around 10. North wind 10 to 16 km/h.
Tuesday
Mostly sunny, with a high near 24.
Tuesday Night
Partly cloudy, with a low around 12.
Wednesday
Mostly sunny, with a high near 26.
Wednesday Night
Partly cloudy, with a low around 11.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 22.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 9.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 22.
  Click Map For Forecast
Point Forecast:
Rapid City SD
 44.08°N 103.24°W (Elev. 1003 m)
8:27 am MDT Sep 5, 2015
10am MDT Sep 5, 2015-6pm MDT Sep 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database