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 >

Current conditions at

JEFFERSON CREEK (JEFW1)

Lat: 47.5491°NLon: 123.21759°WElev: 2408.0ft.

NA

38°F

3°C

Humidity 93%
Wind Speed NW 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 13 Apr 09:36 PM PDT
Extended Forecast for

12 Miles NW Liliwaup WA

  • Tonight

    Tonight: Snow likely, mainly between 1am and 5am.  Mostly cloudy, with a low around 31. Wind chill values between 20 and 25. West wind 14 to 16 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.

    Low: 31 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times.  High near 32. Wind chill values between 18 and 23. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.

    High: 32 °F

    Heavy Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow, mainly before 11pm. The snow could be heavy at times.  Low around 23. Wind chill values between 11 and 19. Breezy, with a southwest wind 13 to 23 mph becoming northwest after midnight. Winds could gust as high as 30 mph.  Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 23 °F

    Heavy Snow
    and Breezy
    then Chance
    Snow

  • Wednesday

    Wednesday: A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible.  High near 31. Wind chill values between 13 and 20. Northwest wind 10 to 14 mph becoming west southwest in the morning. Winds could gust as high as 22 mph.  Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.

    High: 31 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow before 11pm.  Partly cloudy, with a low around 21. West northwest wind 9 to 14 mph, with gusts as high as 22 mph.  New snow accumulation of less than one inch possible.

    Low: 21 °F

    Chance Snow
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 37.

    High: 37 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 38.

    High: 38 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 30.

    Low: 30 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Snow likely, mainly between 1am and 5am. Mostly cloudy, with a low around 31. Wind chill values between 20 and 25. West wind 14 to 16 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. Total nighttime snow accumulation of less than one inch possible.
Tuesday
Snow. The snow could be heavy at times. High near 32. Wind chill values between 18 and 23. Breezy, with a southwest wind 20 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 10 to 16 inches possible.
Tuesday Night
Snow, mainly before 11pm. The snow could be heavy at times. Low around 23. Wind chill values between 11 and 19. Breezy, with a southwest wind 13 to 23 mph becoming northwest after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 31. Wind chill values between 13 and 20. Northwest wind 10 to 14 mph becoming west southwest in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
A 50 percent chance of snow before 11pm. Partly cloudy, with a low around 21. West northwest wind 9 to 14 mph, with gusts as high as 22 mph. New snow accumulation of less than one inch possible.
Thursday
Sunny, with a high near 37.
Thursday Night
Partly cloudy, with a low around 26.
Friday
Mostly sunny, with a high near 38.
Friday Night
Mostly cloudy, with a low around 30.
Saturday
Mostly cloudy, with a high near 43.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 35.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 39.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 32.
Monday
A chance of rain and snow. Partly sunny, with a high near 42.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NW Liliwaup WA
 47.55°N 123.32°W (Elev. 4708 ft)
11:27 am PDT Apr 13, 2026
9pm PDT Apr 13, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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