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

40°F

4°C

Humidity 41%
Wind Speed SW 3 mph
Barometer 29.84 in (1007.2 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Last update 14 Apr 12:53 am MDT
Extended Forecast for

8 Miles W Hill City SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. West wind around 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after noon.  Mostly cloudy, with a high near 49. Southwest wind 5 to 7 mph, with gusts as high as 17 mph.

    High: 49 °F

    Mostly Cloudy
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A slight chance of rain and snow showers before midnight.  Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West wind around 6 mph, with gusts as high as 16 mph.  Chance of precipitation is 20%.

    Low: 32 °F

    Slight Chance
    Rain/Snow
    then Mostly
    Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 57. Southwest wind 6 to 9 mph, with gusts as high as 24 mph.

    High: 57 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 41. Southwest wind 7 to 14 mph, with gusts as high as 30 mph.

    Low: 41 °F

    Mostly Clear

  • Thursday

    Thursday: A 50 percent chance of showers after noon.  Increasing clouds, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 34 mph.

    High: 60 °F

    Mostly Sunny
    then Chance
    Showers

  • Thursday Night

    Thursday Night: Rain showers before 9pm, then snow showers.  Low around 23. West wind 10 to 14 mph becoming north in the evening. Winds could gust as high as 33 mph.  Chance of precipitation is 90%.

    Low: 23 °F

    Rain/Snow
    then Snow
    Showers

  • Friday

    Friday: Snow showers.  Mostly cloudy, with a high near 29. North wind around 15 mph, with gusts as high as 37 mph.

    High: 29 °F

    Snow Showers

  • Friday Night

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

    Low: 18 °F

    Chance Snow
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. West wind around 6 mph.
Tuesday
A 30 percent chance of showers after noon. Mostly cloudy, with a high near 49. Southwest wind 5 to 7 mph, with gusts as high as 17 mph.
Tuesday Night
A slight chance of rain and snow showers before midnight. Mostly cloudy, then gradually becoming mostly clear, with a low around 32. West wind around 6 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Wednesday
Mostly sunny, with a high near 57. Southwest wind 6 to 9 mph, with gusts as high as 24 mph.
Wednesday Night
Mostly clear, with a low around 41. Southwest wind 7 to 14 mph, with gusts as high as 30 mph.
Thursday
A 50 percent chance of showers after noon. Increasing clouds, with a high near 60. Southwest wind 10 to 15 mph, with gusts as high as 34 mph.
Thursday Night
Rain showers before 9pm, then snow showers. Low around 23. West wind 10 to 14 mph becoming north in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 90%.
Friday
Snow showers. Mostly cloudy, with a high near 29. North wind around 15 mph, with gusts as high as 37 mph.
Friday Night
A chance of snow showers before midnight. Mostly cloudy, with a low around 18.
Saturday
A chance of snow showers, mainly after noon. Mostly sunny, with a high near 35.
Saturday Night
Mostly clear, with a low around 21.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 32.
Monday
Sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Hill City SD
 43.95°N 103.74°W (Elev. 6398 ft)
12:32 am MDT Apr 14, 2026
1am 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