Marine and Coastal Impacts from Imelda; Unsettled Weather in the West

Swells and high surf from both Imelda and Humberto are expected to bring dangerous marine conditions and rip currents to much of the East Coast over the next several days. A series of Pacific frontal systems will bring waves of showers and thunderstorms to portions of northern California and the Pacific Northwest through midweek. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

A Few Clouds

83°F

28°C

Humidity 28%
Wind Speed S 14 mph
Barometer 29.96 in (1012.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 29 Sep 5:52 pm MDT
Extended Forecast for

Blackhawk SD

  • Tonight

    Tonight: Isolated showers and thunderstorms before 7pm.  Mostly clear, with a low around 58. Southwest wind around 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 20%.

    Low: 58 °F

    Isolated
    T-storms then
    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 31 mph.

    High: 87 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 61. South wind 9 to 13 mph, with gusts as high as 23 mph.

    Low: 61 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 81. West wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph.

    High: 81 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 57. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 15 mph.

    Low: 57 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 85. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.

    High: 85 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 56. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.

    Low: 56 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of showers after noon.  Mostly sunny, with a high near 73. North wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 73 °F

    Mostly Sunny
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers and thunderstorms before 7pm. Mostly clear, with a low around 58. Southwest wind around 11 mph, with gusts as high as 22 mph. Chance of precipitation is 20%.
Tuesday
Sunny, with a high near 87. South wind 10 to 15 mph, with gusts as high as 31 mph.
Tuesday Night
Mostly clear, with a low around 61. South wind 9 to 13 mph, with gusts as high as 23 mph.
Wednesday
Sunny, with a high near 81. West wind 5 to 11 mph becoming north in the afternoon. Winds could gust as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 57. Light and variable wind becoming southwest 5 to 8 mph in the evening. Winds could gust as high as 15 mph.
Thursday
Sunny, with a high near 85. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.
Thursday Night
Partly cloudy, with a low around 56. Southwest wind 6 to 10 mph becoming northwest after midnight. Winds could gust as high as 18 mph.
Friday
A slight chance of showers after noon. Mostly sunny, with a high near 73. North wind 10 to 13 mph, with gusts as high as 24 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 48.
Saturday
A slight chance of showers after noon. Mostly sunny, with a high near 69.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48.
Sunday
A chance of showers. Mostly sunny, with a high near 62.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 41.
Monday
A chance of showers. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
Blackhawk SD
 44.16°N 103.31°W (Elev. 3514 ft)
5:36 pm MDT Sep 29, 2025
6pm MDT Sep 29, 2025-6pm MDT Oct 6, 2025
 
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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