Hazardous Coastal Conditions for the Mid-Atlantic; Storm System Approaching Southern Alaska

A Nor'easter will create hazardous marine and coastal conditions along the Mid-Atlantic coast through mid-week, with significant coastal flooding and beach erosion possible. Meanwhile, another strong storm system is forecast to bring high winds and heavy precipitation to portions of southern Alaska. Elsewhere, relatively benign weather is expected through the first half of the work week. Read More >

Current conditions at

DW8787 CHEHALIS (D8787)

Lat: 46.64646°NLon: 122.8388°WElev: 550.0ft.

NA

47°F

8°C

Humidity 86%
Wind Speed NW 0 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 43°F (6°C)
Visibility NA
Last update 18 Oct 07:30 PM PDT
Extended Forecast for

6 Miles SE Onalaska WA

  • Tonight

    Tonight: Areas of fog after 3am.  Otherwise, mostly cloudy, with a low around 38. Calm wind.

    Low: 38 °F

    Mostly Cloudy
    then Areas
    Fog

  • Monday

    Monday: Areas of fog before 11am.  Otherwise, cloudy, with a high near 61. Calm wind.

    High: 61 °F

    Areas Fog
    then Cloudy

  • Monday Night

    Monday Night: Patchy fog after 1am. Patchy frost after 4am.  Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Mostly Cloudy
    then Patchy
    Frost and
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 8am. Patchy frost before 9am.  Otherwise, mostly sunny, with a high near 65. Light north northeast wind.

    High: 65 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Areas of frost after 5am.  Otherwise, mostly clear, with a low around 38. Calm wind.

    Low: 38 °F

    Clear then
    Areas Frost

  • Wednesday

    Wednesday: Areas of frost before 9am.  Otherwise, sunny, with a high near 67.

    High: 67 °F

    Areas Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers after 11am.  Partly sunny, with a high near 59.

    High: 59 °F

    Slight Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers, mainly after 11pm.  Partly cloudy, with a low around 36.

    Low: 36 °F

    Chance
    Showers

Detailed Forecast

Tonight
Areas of fog after 3am. Otherwise, mostly cloudy, with a low around 38. Calm wind.
Monday
Areas of fog before 11am. Otherwise, cloudy, with a high near 61. Calm wind.
Monday Night
Patchy fog after 1am. Patchy frost after 4am. Otherwise, cloudy, then gradually becoming partly cloudy, with a low around 36. Calm wind.
Tuesday
Patchy fog before 8am. Patchy frost before 9am. Otherwise, mostly sunny, with a high near 65. Light north northeast wind.
Tuesday Night
Areas of frost after 5am. Otherwise, mostly clear, with a low around 38. Calm wind.
Wednesday
Areas of frost before 9am. Otherwise, sunny, with a high near 67.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
A slight chance of showers after 11am. Partly sunny, with a high near 59.
Thursday Night
A chance of showers, mainly after 11pm. Partly cloudy, with a low around 36.
Friday
A slight chance of showers. Partly sunny, with a high near 58.
Friday Night
Partly cloudy, with a low around 32.
Saturday
A slight chance of showers. Mostly cloudy, with a high near 58.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 35.
Sunday
A slight chance of showers. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
6 Miles SE Onalaska WA
 46.51°N 122.65°W (Elev. 322 ft)
11:25 am PDT Oct 18, 2026
7pm PDT Oct 18, 2026-6pm PDT Oct 25, 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