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

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

Lat: 47.68528°NLon: 122.25111°WElev: 29.0ft.

NA

49°F

9°C

Humidity 93%
Wind Speed E 1 MPH
Barometer 29.83 in (1010.16 mb)
Dewpoint 47°F (8°C)
Visibility NA
Last update 19 Oct 02:30 AM PDT
Extended Forecast for

4 Miles N Sammamish WA

  • Overnight

    Overnight: Cloudy, with a steady temperature around 45. Calm wind.

    Low: 45 °F

    Cloudy

  • Monday

    Monday: Cloudy, then gradually becoming mostly sunny, with a high near 60. Calm wind.

    High: 60 °F

    Decreasing
    Clouds

  • Monday Night

    Monday Night: Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 11am.  Otherwise, partly sunny, then gradually becoming sunny, with a high near 60. Light north wind.

    High: 60 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Areas of fog between 1am and 5am.  Otherwise, mostly clear, with a low around 41. Calm wind.

    Low: 41 °F

    Mostly Clear
    then Areas
    Fog

  • Wednesday

    Wednesday: Patchy fog between 7am and 10am.  Otherwise, sunny, with a high near 64.

    High: 64 °F

    Patchy Fog
    then Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A chance of rain.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

Detailed Forecast

Overnight
Cloudy, with a steady temperature around 45. Calm wind.
Monday
Cloudy, then gradually becoming mostly sunny, with a high near 60. Calm wind.
Monday Night
Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 41. Calm wind.
Tuesday
Patchy fog before 11am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 60. Light north wind.
Tuesday Night
Areas of fog between 1am and 5am. Otherwise, mostly clear, with a low around 41. Calm wind.
Wednesday
Patchy fog between 7am and 10am. Otherwise, sunny, with a high near 64.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly cloudy, with a high near 56.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 43.
Friday
Partly sunny, with a high near 54.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
A slight chance of rain. Mostly cloudy, with a high near 54.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 42.
Sunday
A chance of rain. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Sammamish WA
 47.67°N 122.02°W (Elev. 495 ft)
1:20 am PDT Oct 19, 2026
2am PDT Oct 19, 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