Notice of NWS' New Version of Forecast
A new version of Forecast is coming soon!
Click here to visit the new site for details.

Heavy rain and flash flooding possible in portions of the Southwest this weekend

An upper-level low in the Southwest U.S. will act as a trigger for thunderstorms this weekend. The area of greatest concern is in New Mexico, southeast Utah and portions of southern Colorado. Storms will be slow moving and could bring several rounds of rain to the same areas. Rainfall amounts may exceed 3 inches in localized areas. Flash Flood Watches are in effect. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

26°C

78°F

Humidity 26%
Wind Speed N 19 km/h
Barometer 1009.4 mb (29.89 in)
Dewpoint 4°C (40°F)
Visibility 16 km
Heat Index26°C (78°F)
Last update 19 Aug 7:52 pm MDT
Extended Forecast for

Lead SD

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms after 1am.  Areas of smoke before 1am. Partly cloudy, with a low around 12. North wind 5 to 10 km/h becoming east after midnight.

    Areas Smoke
    then Slight
    Chance
    T-storms

    Low: 12 °C

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms.  Mostly sunny, with a high near 25. East wind 10 to 14 km/h.

    Slight Chance
    T-storms

    High: 25 °C

  • Sunday
    Night

    Sunday Night: A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 12. Southeast wind 11 to 16 km/h.  Chance of precipitation is 20%.

    Slight Chance
    T-storms

    Low: 12 °C

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly between 7am and 1pm.  Mostly sunny, with a high near 24. Southwest wind 5 to 11 km/h becoming north in the afternoon.

    Chance
    T-storms

    High: 24 °C

  • Monday
    Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 7pm.  Mostly clear, with a low around 10. Northeast wind 5 to 10 km/h becoming southeast after midnight.

    Slight Chance
    T-storms then
    Mostly Clear

    Low: 10 °C

  • Tuesday

    Tuesday: Sunny, with a high near 24. South wind 5 to 10 km/h becoming east in the morning.

    Sunny

    High: 24 °C

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 12.

    Mostly Clear

    Low: 12 °C

  • Wednesday

    Wednesday: Sunny, with a high near 27.

    Sunny

    High: 27 °C

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 13.

    Partly Cloudy

    Low: 13 °C

Detailed Forecast

Tonight
A 20 percent chance of showers and thunderstorms after 1am. Areas of smoke before 1am. Partly cloudy, with a low around 12. North wind 5 to 10 km/h becoming east after midnight.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 25. East wind 10 to 14 km/h.
Sunday Night
A slight chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 12. Southeast wind 11 to 16 km/h. Chance of precipitation is 20%.
Monday
A 40 percent chance of showers and thunderstorms, mainly between 7am and 1pm. Mostly sunny, with a high near 24. Southwest wind 5 to 11 km/h becoming north in the afternoon.
Monday Night
A 20 percent chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 10. Northeast wind 5 to 10 km/h becoming southeast after midnight.
Tuesday
Sunny, with a high near 24. South wind 5 to 10 km/h becoming east in the morning.
Tuesday Night
Mostly clear, with a low around 12.
Wednesday
Sunny, with a high near 27.
Wednesday Night
Partly cloudy, with a low around 13.
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 27.
Thursday Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 13.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 26.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 12.
Saturday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 25.
Click Map For Forecast
Point Forecast:
Lead SD
 44.35°N 103.77°W (Elev. 1622 m)
6:45 pm MDT Aug 19, 2017
8pm MDT Aug 19, 2017-6pm MDT Aug 26, 2017
 
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