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

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

48°F

9°C

Humidity 48%
Wind Speed SW 6 mph
Barometer 29.80 in (1004.4 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 13 Apr 6:53 am MDT
Extended Forecast for

5 Miles ESE Edgemont SD

Red Flag Warning April 13, 07:27am until April 13, 09:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning April 13, 07:27am until April 13, 09:00pm

    NOW until 9:00pm Mon

    Red Flag Warning

  • Today

    High: 71 °F

    Sunny and
    Windy

  • Tonight

    Tonight: Partly cloudy, with a low around 38. Breezy, with a northwest wind 18 to 28 mph decreasing to 6 to 16 mph after midnight. Winds could gust as high as 44 mph.

    Low: 38 °F

    Mostly Clear
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers after noon.  Partly sunny, with a high near 63. Northwest wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 17 mph.

    High: 63 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming southeast in the evening. Winds could gust as high as 15 mph.

    Low: 37 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers.  Sunny, with a high near 72. West wind 6 to 15 mph, with gusts as high as 26 mph.

    High: 72 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 45. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 45 °F

    Mostly Clear

  • Thursday

    Thursday: A 30 percent chance of showers after noon.  Partly sunny, with a high near 74. Breezy, with a southwest wind 11 to 16 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 74 °F

    Breezy.
    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers likely before 3am, then a chance of rain and snow showers.  Mostly cloudy, with a low around 30. Breezy, with a southwest wind 22 to 24 mph becoming northwest in the evening. Winds could gust as high as 36 mph.

    Low: 30 °F

    Showers
    Likely and
    Breezy then
    Chance
    Rain/Snow and
    Blustery

Detailed Forecast

Today
Sunny, with a high near 71. Windy, with a west wind 14 to 19 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 49 mph.
Tonight
Partly cloudy, with a low around 38. Breezy, with a northwest wind 18 to 28 mph decreasing to 6 to 16 mph after midnight. Winds could gust as high as 44 mph.
Tuesday
A 20 percent chance of showers after noon. Partly sunny, with a high near 63. Northwest wind 6 to 10 mph becoming southwest in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 37. West wind 5 to 10 mph becoming southeast in the evening. Winds could gust as high as 15 mph.
Wednesday
A 20 percent chance of showers. Sunny, with a high near 72. West wind 6 to 15 mph, with gusts as high as 26 mph.
Wednesday Night
Mostly clear, with a low around 45. Southwest wind 10 to 15 mph, with gusts as high as 24 mph.
Thursday
A 30 percent chance of showers after noon. Partly sunny, with a high near 74. Breezy, with a southwest wind 11 to 16 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 43 mph.
Thursday Night
Rain showers likely before 3am, then a chance of rain and snow showers. Mostly cloudy, with a low around 30. Breezy, with a southwest wind 22 to 24 mph becoming northwest in the evening. Winds could gust as high as 36 mph.
Friday
Snow showers likely, mainly after noon. Mostly cloudy, with a high near 45. Windy.
Friday Night
A chance of snow showers, mainly before midnight. Mostly cloudy, with a low around 24. Windy.
Saturday
Mostly sunny, with a high near 54. Breezy.
Saturday Night
Mostly clear, with a low around 27.
Sunday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Edgemont SD
 43.27°N 103.74°W (Elev. 3675 ft)
6:36 am MDT Apr 13, 2026
7am MDT Apr 13, 2026-6pm MDT Apr 19, 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