Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Rapid City, Rapid City Regional Airport (KRAP)

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

Fair

46°F

8°C

Humidity 68%
Wind Speed Calm
Barometer 29.72 in (1006.9 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 15 Apr 7:52 am MDT
Extended Forecast for

Rapid City Regional Airport SD

  • Today

    Today: Sunny, with a high near 76. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 23 mph.

    High: 76 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 44. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.

    Low: 44 °F

    Increasing
    Clouds

  • Thursday

    Thursday: A 40 percent chance of showers after noon.  Partly sunny, with a high near 74. Breezy, with a west wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph.

    High: 74 °F

    Partly Sunny
    then Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Rain showers before midnight, then rain and snow showers likely between midnight and 2am, then snow showers likely after 2am.  Low around 28. Wind chill values as low as 15. Blustery, with a north wind 22 to 29 mph, with gusts as high as 46 mph.  Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Blustery.
    Showers then
    Rain/Snow
    Likely

  • Friday

    Friday: A 50 percent chance of snow showers.  Mostly cloudy, with a high near 45. Breezy, with a north wind 23 to 28 mph, with gusts as high as 45 mph.  New snow accumulation of less than a half inch possible.

    High: 45 °F

    Chance Snow
    Showers and
    Breezy

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Blustery, with a northwest wind 20 to 25 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 41 mph.

    Low: 21 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: A slight chance of snow showers between noon and 2pm, then a slight chance of rain showers after 2pm.  Mostly sunny, with a high near 53. Breezy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph.  Chance of precipitation is 20%.

    High: 53 °F

    Breezy.
    Mostly Sunny
    then Slight
    Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 26. Blustery, with a northwest wind 15 to 20 mph becoming west 5 to 10 mph in the evening. Winds could gust as high as 31 mph.

    Low: 26 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 69.

    High: 69 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 76. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 23 mph.
Tonight
Increasing clouds, with a low around 44. Southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Thursday
A 40 percent chance of showers after noon. Partly sunny, with a high near 74. Breezy, with a west wind 13 to 21 mph becoming northwest in the afternoon. Winds could gust as high as 36 mph.
Thursday Night
Rain showers before midnight, then rain and snow showers likely between midnight and 2am, then snow showers likely after 2am. Low around 28. Wind chill values as low as 15. Blustery, with a north wind 22 to 29 mph, with gusts as high as 46 mph. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Friday
A 50 percent chance of snow showers. Mostly cloudy, with a high near 45. Breezy, with a north wind 23 to 28 mph, with gusts as high as 45 mph. New snow accumulation of less than a half inch possible.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 21. Blustery, with a northwest wind 20 to 25 mph decreasing to 9 to 14 mph after midnight. Winds could gust as high as 41 mph.
Saturday
A slight chance of snow showers between noon and 2pm, then a slight chance of rain showers after 2pm. Mostly sunny, with a high near 53. Breezy, with a northwest wind 9 to 14 mph increasing to 17 to 22 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 20%.
Saturday Night
Partly cloudy, with a low around 26. Blustery, with a northwest wind 15 to 20 mph becoming west 5 to 10 mph in the evening. Winds could gust as high as 31 mph.
Sunday
Sunny, with a high near 69.
Sunday Night
Mostly clear, with a low around 35.
Monday
Mostly sunny, with a high near 79.
Monday Night
Partly cloudy, with a low around 42.
Tuesday
Sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Rapid City Regional Airport SD
 44.04°N 103.06°W (Elev. 3100 ft)
6:32 am MDT Apr 15, 2026
8am MDT Apr 15, 2026-6pm MDT Apr 21, 2026
 
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