Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

JEFFERSON CREEK (JEFW1)

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

NA

34°F

1°C

Humidity 98%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 15 Apr 04:36 AM PDT
Extended Forecast for

15 Miles NW Liliwaup WA

  • Overnight

    Overnight: A 20 percent chance of snow.  Mostly cloudy, with a low around 21. Wind chill values between 13 and 18. West wind around 7 mph.

    Low: 21 °F

    Slight Chance
    Snow

  • Wednesday

    Wednesday: Snow showers, mainly before 5pm, then snow likely after 5pm. Some thunder is also possible.  High near 31. Wind chill values between 15 and 22. West wind 6 to 11 mph, with gusts 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: Snow likely, mainly before 7pm.  Mostly cloudy during the early evening, then gradual clearing, with a low around 22. Wind chill values between 14 and 19. Northwest wind 6 to 8 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 22 °F

    Snow Likely
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 38. Wind chill values between 16 and 26. Northwest wind 6 to 10 mph becoming west southwest in the morning. Winds could gust as high as 21 mph.

    High: 38 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 26. West wind 5 to 11 mph becoming north northwest after midnight. Winds could gust as high as 23 mph.

    Low: 26 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 40.

    High: 40 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 31.

    Low: 31 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of snow after 11am, mixing with rain after 2pm.  Mostly cloudy, with a high near 46.

    High: 46 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Saturday Night

    Saturday Night: Rain likely before 2am, then rain and snow likely.  Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely
    then
    Rain/Snow
    Likely

Detailed Forecast

Overnight
A 20 percent chance of snow. Mostly cloudy, with a low around 21. Wind chill values between 13 and 18. West wind around 7 mph.
Wednesday
Snow showers, mainly before 5pm, then snow likely after 5pm. Some thunder is also possible. High near 31. Wind chill values between 15 and 22. West wind 6 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
Wednesday Night
Snow likely, mainly before 7pm. Mostly cloudy during the early evening, then gradual clearing, with a low around 22. Wind chill values between 14 and 19. Northwest wind 6 to 8 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 38. Wind chill values between 16 and 26. Northwest wind 6 to 10 mph becoming west southwest in the morning. Winds could gust as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 26. West wind 5 to 11 mph becoming north northwest after midnight. Winds could gust as high as 23 mph.
Friday
Partly sunny, with a high near 40.
Friday Night
Mostly cloudy, with a low around 31.
Saturday
A chance of snow after 11am, mixing with rain after 2pm. Mostly cloudy, with a high near 46.
Saturday Night
Rain likely before 2am, then rain and snow likely. Mostly cloudy, with a low around 38.
Sunday
Rain likely, possibly mixed with snow. Mostly cloudy, with a high near 51.
Sunday Night
A chance of rain and snow. Mostly cloudy, with a low around 39.
Monday
A chance of rain. Partly sunny, with a high near 55.
Monday Night
A slight chance of rain. Partly cloudy, with a low around 40.
Tuesday
A chance of rain and snow. Mostly sunny, with a high near 55.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles NW Liliwaup WA
 47.64°N 123.31°W (Elev. 4295 ft)
1:16 am PDT Apr 15, 2026
4am PDT Apr 15, 2026-6pm PDT Apr 21, 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