Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

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

NA

75°F

24°C

Humidity 54%
Wind Speed S 11 MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 57°F (14°C)
Visibility NA
Last update 27 Aug 03:30 PM PDT
Extended Forecast for

Mountlake Terrace WA

  • Tonight

    Tonight: Increasing clouds, with a low around 57. Southwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 57 °F

    Increasing
    Clouds

  • Friday

    Friday: Cloudy, then gradually becoming mostly sunny, with a high near 72. Light and variable wind.

    High: 72 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Rain likely, mainly after 2am.  Cloudy, with a low around 55. North northwest wind around 6 mph becoming calm  in the evening.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Chance Rain
    then Rain
    Likely

  • Saturday

    Saturday: Rain likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of rain after 2pm.  Mostly cloudy, with a high near 69. Light and variable wind.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 53. Light and variable wind.

    Low: 53 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 70.

    High: 70 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 53.

    Low: 53 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 54.

    Low: 54 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Increasing clouds, with a low around 57. Southwest wind 5 to 7 mph becoming calm in the evening.
Friday
Cloudy, then gradually becoming mostly sunny, with a high near 72. Light and variable wind.
Friday Night
Rain likely, mainly after 2am. Cloudy, with a low around 55. North northwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 69. Light and variable wind. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Mostly cloudy, with a low around 53. Light and variable wind.
Sunday
Mostly cloudy, with a high near 70.
Sunday Night
Mostly cloudy, with a low around 53.
Monday
Partly sunny, with a high near 71.
Monday Night
Mostly cloudy, with a low around 54.
Tuesday
A chance of rain after 11am. Mostly cloudy, with a high near 71.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 54.
Wednesday
Rain likely. Mostly cloudy, with a high near 67.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 54.
Thursday
A chance of rain. Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
Mountlake Terrace WA
 47.78°N 122.31°W (Elev. 374 ft)
12:56 pm PDT Aug 27, 2026
4pm PDT Aug 27, 2026-6pm PDT Sep 3, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database