Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat 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 the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Hazardous Weather Conditions

Current conditions at

Custer, Custer County Airport (KCUT)

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

Fair

37°F

3°C

Humidity 46%
Wind Speed NW 3 mph
Barometer 29.84 in (1007.5 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 14 Apr 2:53 am MDT
Extended Forecast for

5 Miles N Custer SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 35. West wind around 6 mph.

    Low: 35 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain and snow showers between noon and 1pm, then a chance of rain showers after 1pm.  Mostly cloudy, with a high near 51. West wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph.  Chance of precipitation is 30%.

    High: 51 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Tuesday Night

    Tuesday Night: A slight chance of rain showers, mixing with snow after 11pm, then gradually ending.  Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 6 to 8 mph becoming northwest in the evening.  Chance of precipitation is 20%.

    Low: 33 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. West wind 7 to 9 mph, with gusts as high as 22 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 42. Southwest wind 9 to 17 mph, with gusts as high as 26 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers after noon.  Increasing clouds, with a high near 62. West wind 13 to 18 mph, with gusts as high as 33 mph.

    High: 62 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then rain and snow showers between 9pm and 1am, then snow showers after 1am.  Low around 25. Southwest wind 13 to 17 mph becoming north in the evening. Winds could gust as high as 28 mph.  Chance of precipitation is 90%.

    Low: 25 °F

    Rain/Snow

  • Friday

    Friday: Snow showers.  Mostly cloudy, with a high near 32. North wind 14 to 17 mph, with gusts as high as 32 mph.

    High: 32 °F

    Snow Showers

  • Friday Night

    Friday Night: A chance of snow showers before midnight.  Mostly cloudy, with a low around 18. Blustery.

    Low: 18 °F

    Blustery.
    Chance Snow
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 35. West wind around 6 mph.
Tuesday
A chance of rain and snow showers between noon and 1pm, then a chance of rain showers after 1pm. Mostly cloudy, with a high near 51. West wind around 6 mph becoming light and variable. Winds could gust as high as 16 mph. Chance of precipitation is 30%.
Tuesday Night
A slight chance of rain showers, mixing with snow after 11pm, then gradually ending. Mostly cloudy, then gradually becoming mostly clear, with a low around 33. West wind 6 to 8 mph becoming northwest in the evening. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 58. West wind 7 to 9 mph, with gusts as high as 22 mph.
Wednesday Night
Mostly clear, with a low around 42. Southwest wind 9 to 17 mph, with gusts as high as 26 mph.
Thursday
A 50 percent chance of showers after noon. Increasing clouds, with a high near 62. West wind 13 to 18 mph, with gusts as high as 33 mph.
Thursday Night
Rain showers before 9pm, then rain and snow showers between 9pm and 1am, then snow showers after 1am. Low around 25. Southwest wind 13 to 17 mph becoming north in the evening. Winds could gust as high as 28 mph. Chance of precipitation is 90%.
Friday
Snow showers. Mostly cloudy, with a high near 32. North wind 14 to 17 mph, with gusts as high as 32 mph.
Friday Night
A chance of snow showers before midnight. Mostly cloudy, with a low around 18. Blustery.
Saturday
A chance of snow showers, mainly after noon. Mostly sunny, with a high near 36.
Saturday Night
Mostly clear, with a low around 22.
Sunday
Sunny, with a high near 53.
Sunday Night
Mostly clear, with a low around 33.
Monday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles N Custer SD
 43.84°N 103.61°W (Elev. 6276 ft)
12:32 am MDT Apr 14, 2026
3am MDT Apr 14, 2026-6pm MDT Apr 20, 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