Hurricane Isaias to Approach the Northern Gulf Coast on Friday

Isaias is expected to approach the northern Gulf Coast as a strong hurricane on Friday, bringing life-threatening storm surge, damaging winds, heavy rain, and severe thunderstorms across the region and Southeast into the weekend, with risks of flooding and tornadoes. Read More >

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

69°F

21°C

Humidity 38%
Wind Speed Vrbl 6 mph
Barometer 30.06 in (1016.8 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 8 Oct 11:52 am MDT
Extended Forecast for

Rapid City Regional Airport SD

Red Flag Warning October 9, 11:00am until October 9, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  • This Afternoon

    This Afternoon: Sunny, with a high near 76. East wind 3 to 6 mph. Winds could gust as high as 16 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 45. East wind around 6 mph becoming light and variable.

    Low: 45 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 90. South wind 6 to 16 mph, with gusts as high as 33 mph.

    High: 90 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 61. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 61 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Southwest wind 7 to 14 mph becoming north in the afternoon. Winds could gust as high as 28 mph.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 45. Northwest wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 38 mph.

    Low: 45 °F

    Slight Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Rain, mainly after midnight.  Mostly cloudy, with a low around 34.

    Low: 34 °F

    Rain

  • Columbus Day

    Columbus Day: Rain likely, mainly before noon.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 76. East wind 3 to 6 mph. Winds could gust as high as 16 mph.
Tonight
Mostly clear, with a low around 45. East wind around 6 mph becoming light and variable.
Friday
Sunny, with a high near 90. South wind 6 to 16 mph, with gusts as high as 33 mph.
Friday Night
Mostly clear, with a low around 61. Southwest wind 8 to 14 mph, with gusts as high as 22 mph.
Saturday
Sunny, with a high near 87. Southwest wind 7 to 14 mph becoming north in the afternoon. Winds could gust as high as 28 mph.
Saturday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 45. Northwest wind 7 to 12 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 38 mph.
Sunday
Mostly cloudy, with a high near 57.
Sunday Night
Rain, mainly after midnight. Mostly cloudy, with a low around 34.
Columbus Day
Rain likely, mainly before noon. Mostly cloudy, with a high near 53.
Monday Night
A chance of rain before midnight. Mostly cloudy, with a low around 33.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 59.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Wednesday
A chance of rain. Mostly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
Rapid City Regional Airport SD
 44.04°N 103.06°W (Elev. 3100 ft)
11:21 am MDT Oct 8, 2026
12pm MDT Oct 8, 2026-6pm MDT Oct 14, 2026
 
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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