Arctic Front Brings Winter Weather and Colder Temperatures to the Eastern U.S.

A series of cold fronts will bring heavy lake effect snow to the northern Great Lakes. The fronts will merge over the Ohio Valley and bring colder temperatures east of the Mississippi River later today into the end of the week. Additionally, wintry weather will develop over the Ohio Valley, Appalachians, and Northeast as rain switches over to snow tonight into Thursday morning. Read More >

Current conditions at

CASTLE ROCK (TR950)

Lat: 46.27139°NLon: 122.89194°WElev: 213.0ft.

NA

47°F

8°C

Humidity 95%
Wind Speed NNE 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 14 Jan 12:09 PM PST
Extended Forecast for

11 Miles NW Mount St Helens WA

  • This Afternoon

    This Afternoon: Sunny, with a high near 51. Calm wind.

    High: 51 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a steady temperature around 42. Northeast wind around 7 mph.

    Low: 42 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 50. East wind 6 to 8 mph.

    High: 50 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 36. Breezy, with an east southeast wind 11 to 16 mph, with gusts as high as 21 mph.

    Low: 36 °F

    Mostly Clear
    and Breezy

  • Friday

    Friday: Sunny, with a high near 48. Breezy, with an east southeast wind 9 to 17 mph, with gusts as high as 22 mph.

    High: 48 °F

    Sunny and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 37. Breezy.

    Low: 37 °F

    Clear and
    Breezy

  • Saturday

    Saturday: Sunny, with a high near 49. Breezy.

    High: 49 °F

    Sunny and
    Breezy then
    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 51. Calm wind.
Tonight
Mostly clear, with a steady temperature around 42. Northeast wind around 7 mph.
Thursday
Sunny, with a high near 50. East wind 6 to 8 mph.
Thursday Night
Mostly clear, with a low around 36. Breezy, with an east southeast wind 11 to 16 mph, with gusts as high as 21 mph.
Friday
Sunny, with a high near 48. Breezy, with an east southeast wind 9 to 17 mph, with gusts as high as 22 mph.
Friday Night
Clear, with a low around 37. Breezy.
Saturday
Sunny, with a high near 49. Breezy.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Sunny, with a high near 48.
Sunday Night
Mostly clear, with a low around 34.
M.L.King Day
Sunny, with a high near 47.
Monday Night
Partly cloudy, with a low around 33.
Tuesday
Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NW Mount St Helens WA
 46.31°N 122.34°W (Elev. 3691 ft)
12:57 pm PST Jan 14, 2026
1pm PST Jan 14, 2026-6pm PST Jan 20, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database