Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

Lat: 43.73°NLon: 103.62°WElev: 5600ft.

Fair

36°F

2°C

Humidity 52%
Wind Speed NW 3 mph
Barometer 29.86 in (1010.1 mb)
Dewpoint 20°F (-7°C)
Visibility 10.00 mi
Last update 14 Apr 7:53 am MDT
Extended Forecast for

5 Miles WSW Mount Rushmore SD

  • Today

    Today: A 20 percent chance of showers after 2pm.  Mostly cloudy, with a high near 52. Calm wind becoming southwest around 6 mph in the morning. Winds could gust as high as 20 mph.

    High: 52 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tonight

    Tonight: A slight chance of rain and snow showers before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 6 to 9 mph becoming northwest in the evening. Winds could gust as high as 16 mph.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 59. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.

    High: 59 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. West wind 8 to 17 mph, with gusts as high as 30 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers after noon.  Increasing clouds, with a high near 63. West wind 13 to 18 mph, with gusts as high as 33 mph.

    High: 63 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then snow showers.  Low around 25. Southwest wind 13 to 16 mph becoming north in the evening. Winds could gust as high as 29 mph.  Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Rain/Snow
    then Snow
    Showers

  • Friday

    Friday: Snow showers.  High near 32. North wind 14 to 16 mph, with gusts as high as 33 mph.  Chance of precipitation is 80%.

    High: 32 °F

    Snow Showers

  • Friday Night

    Friday Night: A chance of snow showers before midnight.  Mostly cloudy, with a low around 19. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.

    Low: 19 °F

    Chance Snow
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow showers, mainly after noon.  Mostly sunny, with a high near 37.

    High: 37 °F

    Chance Snow
    Showers

Detailed Forecast

Today
A 20 percent chance of showers after 2pm. Mostly cloudy, with a high near 52. Calm wind becoming southwest around 6 mph in the morning. Winds could gust as high as 20 mph.
Tonight
A slight chance of rain and snow showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 6 to 9 mph becoming northwest in the evening. Winds could gust as high as 16 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 59. Southwest wind 7 to 10 mph, with gusts as high as 23 mph.
Wednesday Night
Mostly clear, with a low around 42. West wind 8 to 17 mph, with gusts as high as 30 mph.
Thursday
A 50 percent chance of showers after noon. Increasing clouds, with a high near 63. West wind 13 to 18 mph, with gusts as high as 33 mph.
Thursday Night
Rain showers before 9pm, then snow showers. Low around 25. Southwest wind 13 to 16 mph becoming north in the evening. Winds could gust as high as 29 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Friday
Snow showers. High near 32. North wind 14 to 16 mph, with gusts as high as 33 mph. Chance of precipitation is 80%.
Friday Night
A chance of snow showers before midnight. Mostly cloudy, with a low around 19. Northwest wind 15 to 18 mph, with gusts as high as 36 mph.
Saturday
A chance of snow showers, mainly after noon. Mostly sunny, with a high near 37.
Saturday Night
Mostly clear, with a low around 21.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 64.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles WSW Mount Rushmore SD
 43.85°N 103.55°W (Elev. 6490 ft)
8:31 am MDT Apr 14, 2026
8am MDT Apr 14, 2026-6pm MDT Apr 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database