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

FIELDS (FEFO3)

Lat: 43.68053°NLon: 122.30203°WElev: 3354.0ft.

NA

41°F

5°C

Humidity 96%
Wind Speed WSW 2 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 13 Apr 12:17 PM PDT
Extended Forecast for

4 Miles N Cascade Summit OR

Winter Storm Warning April 14, 05:00pm until April 16, 05:00am
Click here for hazard details and duration
Winter Storm Warning
  • This Afternoon

    This Afternoon: Snow showers, possibly mixed with rain, mainly before 2pm.  Snow level 4900 feet. High near 40. West northwest wind around 6 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 40 °F

    Rain/Snow

  • Tonight

    Tonight: A 20 percent chance of snow showers before 8pm.  Mostly cloudy, with a low around 27. Light west wind.

    Low: 27 °F

    Slight Chance
    Snow Showers
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Rain, possibly mixed with snow, mainly after 5pm.  High near 45. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    High: 45 °F

    Mostly Sunny
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow, possibly mixed with rain, becoming all snow after 11pm.  Low around 31. West southwest wind 6 to 8 mph, with gusts as high as 22 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    Low: 31 °F

    Rain/Snow
    then Snow

  • Wednesday

    Wednesday: Snow before 11am, then snow showers after 11am. The snow could be heavy at times. Some thunder is also possible.  High near 37. Southwest wind 8 to 10 mph, with gusts as high as 25 mph.  Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.

    High: 37 °F

    Heavy Snow

  • Wednesday Night

    Wednesday Night: Snow showers. Some thunder is also possible.  Low around 21. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.

    Low: 21 °F

    Snow Showers

  • Thursday

    Thursday: Snow showers.  High near 36. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.

    High: 36 °F

    Snow Showers

  • Thursday Night

    Thursday Night: A chance of snow, mainly before 11pm.  Partly cloudy, with a low around 19.

    Low: 19 °F

    Chance Snow

  • Friday

    Friday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Snow showers, possibly mixed with rain, mainly before 2pm. Snow level 4900 feet. High near 40. West northwest wind around 6 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
A 20 percent chance of snow showers before 8pm. Mostly cloudy, with a low around 27. Light west wind.
Tuesday
Rain, possibly mixed with snow, mainly after 5pm. High near 45. Calm wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Tuesday Night
Snow, possibly mixed with rain, becoming all snow after 11pm. Low around 31. West southwest wind 6 to 8 mph, with gusts as high as 22 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday
Snow before 11am, then snow showers after 11am. The snow could be heavy at times. Some thunder is also possible. High near 37. Southwest wind 8 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New snow accumulation of 4 to 8 inches possible.
Wednesday Night
Snow showers. Some thunder is also possible. Low around 21. Chance of precipitation is 100%. New snow accumulation of 3 to 5 inches possible.
Thursday
Snow showers. High near 36. Chance of precipitation is 80%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of snow, mainly before 11pm. Partly cloudy, with a low around 19.
Friday
Mostly sunny, with a high near 48.
Friday Night
Partly cloudy, with a low around 28.
Saturday
A slight chance of rain. Snow level rising to 6300 feet in the afternoon. Partly sunny, with a high near 53.
Saturday Night
A chance of rain and snow. Snow level 6700 feet lowering to 6000 feet after midnight . Mostly cloudy, with a low around 33.
Sunday
Rain and snow likely. Snow level 5300 feet. Mostly cloudy, with a high near 46.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Cascade Summit OR
 43.62°N 122.06°W (Elev. 4718 ft)
11:41 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