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

JEFFERSON CREEK (JEFW1)

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

NA

44°F

7°C

Humidity 95%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 43°F (6°C)
Visibility NA
Last update 13 Apr 11:36 AM PDT
Extended Forecast for

11 Miles W Liliwaup WA

  • This Afternoon

    This Afternoon: A chance of rain and snow before 2pm, then a chance of snow.  Mostly cloudy, with a high near 41. West wind 14 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Snow likely, mainly after 4am.  Mostly cloudy, with a low around 34. Wind chill values between 25 and 30. West wind 14 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Chance Snow
    then Snow
    Likely

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times.  High near 36. Wind chill values between 22 and 27. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 36 °F

    Heavy Snow
    and Breezy

  • Tuesday Night

    Tuesday Night: Snow, mainly before 11pm. The snow could be heavy at times.  Low around 27. Wind chill values between 17 and 22. Breezy, with a southwest wind 19 to 24 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 27 °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 35. Northwest wind 9 to 15 mph becoming west southwest in the morning. Winds could gust as high as 21 mph.  Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.

    High: 35 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow likely before 11pm.  Partly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Likely
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 42.

    High: 42 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 43.

    High: 43 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A chance of rain and snow before 2pm, then a chance of snow. Mostly cloudy, with a high near 41. West wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight
Snow likely, mainly after 4am. Mostly cloudy, with a low around 34. Wind chill values between 25 and 30. West wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Tuesday
Snow. The snow could be heavy at times. High near 36. Wind chill values between 22 and 27. Breezy, with a southwest wind 18 to 24 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Tuesday Night
Snow, mainly before 11pm. The snow could be heavy at times. Low around 27. Wind chill values between 17 and 22. Breezy, with a southwest wind 19 to 24 mph becoming northwest 13 to 18 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday
A chance of snow before 11am, then snow showers after 11am. Some thunder is also possible. High near 35. Northwest wind 9 to 15 mph becoming west southwest in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely before 11pm. Partly cloudy, with a low around 25. Chance of precipitation is 60%. New snow accumulation of less than one inch possible.
Thursday
Sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 43.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
Mostly cloudy, with a high near 47.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 38.
Sunday
Rain and snow likely. Mostly cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles W Liliwaup WA
 47.48°N 123.36°W (Elev. 3917 ft)
11:27 am PDT Apr 13, 2026
12pm PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database