Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

SEATTLE WEATHER FORECAST OFFICE (SEAW1)

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

NA

66°F

19°C

Humidity 79%
Wind Speed W 3 MPH
Barometer 29.94 in (1013.89 mb)
Dewpoint 59°F (15°C)
Visibility NA
Last update 18 Aug 12:30 AM PDT
Extended Forecast for

Mountlake Terrace WA

  • Overnight

    Overnight: Mostly cloudy, with a low around 57. Calm wind.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 79. Light and variable wind becoming south around 6 mph.

    High: 79 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 58. Calm wind.

    Low: 58 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Cloudy, then gradually becoming mostly sunny, with a high near 77. Light and variable wind.

    High: 77 °F

    Decreasing
    Clouds

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57. North northwest wind around 5 mph becoming calm  in the evening.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 78.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 57. Calm wind.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 79. Light and variable wind becoming south around 6 mph.
Tuesday Night
Increasing clouds, with a low around 58. Calm wind.
Wednesday
Cloudy, then gradually becoming mostly sunny, with a high near 77. Light and variable wind.
Wednesday Night
Partly cloudy, with a low around 57. North northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 78.
Thursday Night
Mostly clear, with a low around 57.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Mostly cloudy, with a high near 72.
Saturday Night
Mostly cloudy, with a low around 56.
Sunday
Partly sunny, with a high near 73.
Sunday Night
Mostly clear, with a low around 55.
Monday
Mostly sunny, with a high near 75.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
Mountlake Terrace WA
 47.78°N 122.31°W (Elev. 374 ft)
11:26 pm PDT Aug 17, 2026
1am PDT Aug 18, 2026-6pm PDT Aug 24, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database