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

36°F

2°C

Humidity 95%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 14 Apr 12:36 AM PDT
Extended Forecast for

17 Miles WNW Liliwaup WA

  • Overnight

    Overnight: Snow likely, mainly after 4am.  Mostly cloudy, with a low around 36. West southwest wind around 9 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.

    Low: 36 °F

    Snow Likely

  • Tuesday

    Tuesday: Snow. The snow could be heavy at times.  High near 38. Southwest wind 11 to 16 mph, with gusts as high as 34 mph.  Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.

    High: 38 °F

    Heavy Snow

  • Tuesday Night

    Tuesday Night: Snow, mainly before 2am.  Low around 27. Wind chill values between 20 and 25. West southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 32 mph.  Chance of precipitation is 90%. New snow accumulation of less than one inch possible.

    Low: 27 °F

    Snow then
    Chance Snow

  • Wednesday

    Wednesday: Snow likely before 11am, then snow showers after 11am. Some thunder is also possible.  High near 37. Wind chill values between 22 and 29. West wind 6 to 11 mph, with gusts as high as 23 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 37 °F

    Snow Showers

  • Wednesday Night

    Wednesday Night: Snow likely before 11pm.  Partly cloudy, with a low around 26. North northwest wind 5 to 10 mph, with gusts as high as 23 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 44.

    High: 44 °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 44.

    High: 44 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Snow likely, mainly after 4am. Mostly cloudy, with a low around 36. West southwest wind around 9 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. Total nighttime snow accumulation of less than a half inch possible.
Tuesday
Snow. The snow could be heavy at times. High near 38. Southwest wind 11 to 16 mph, with gusts as high as 34 mph. Chance of precipitation is 100%. New snow accumulation of 2 to 4 inches possible.
Tuesday Night
Snow, mainly before 2am. Low around 27. Wind chill values between 20 and 25. West southwest wind 6 to 15 mph becoming northwest after midnight. Winds could gust as high as 32 mph. Chance of precipitation is 90%. New snow accumulation of less than one inch possible.
Wednesday
Snow likely before 11am, then snow showers after 11am. Some thunder is also possible. High near 37. Wind chill values between 22 and 29. West wind 6 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
Snow likely before 11pm. Partly cloudy, with a low around 26. North northwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 44.
Thursday Night
Partly cloudy, with a low around 30.
Friday
Partly sunny, with a high near 44.
Friday Night
Mostly cloudy, with a low around 34.
Saturday
A slight chance of rain after 11am. Partly sunny, with a high near 49.
Saturday Night
Rain likely. Mostly cloudy, with a low around 41.
Sunday
Rain likely. Mostly cloudy, with a high near 46.
Sunday Night
Rain and snow likely. Mostly cloudy, with a low around 37.
Monday
Rain and snow likely. Mostly cloudy, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Liliwaup WA
 47.51°N 123.46°W (Elev. 3612 ft)
11:27 pm PDT Apr 13, 2026
12am PDT Apr 14, 2026-6pm PDT 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