Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

Arlington Municipal Airport (KAWO)

Lat: 48.1585°NLon: 122.15909°WElev: 125.0ft.

Overcast

57°F

14°C

Humidity 93%
Wind Speed N 6 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 20 Sep 11:20 AM PDT
Extended Forecast for

Arlington WA

  • Today

    Today: Sunny, with a high near 69. West northwest wind 3 to 6 mph.

    High: 69 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after midnight.  Otherwise, partly cloudy, with a low around 48. Light and variable wind.

    Low: 48 °F

    Mostly Clear
    then Patchy
    Fog

  • Monday

    Monday: Areas of fog before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.

    High: 71 °F

    Areas Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Increasing clouds, with a low around 51. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 51 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 68. Light and variable wind.

    High: 68 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 66.

    High: 66 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 46.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 11am.  Mostly cloudy, with a high near 64.

    High: 64 °F

    Chance Rain

Detailed Forecast

Today
Sunny, with a high near 69. West northwest wind 3 to 6 mph.
Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 48. Light and variable wind.
Monday
Areas of fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 71. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Increasing clouds, with a low around 51. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 68. Light and variable wind.
Tuesday Night
Mostly cloudy, with a low around 49.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 46.
Thursday
A chance of rain after 11am. Mostly cloudy, with a high near 64.
Thursday Night
Rain likely, mainly after 11pm. Cloudy, with a low around 47.
Friday
Rain likely. Mostly cloudy, with a high near 63.
Friday Night
A chance of rain. Mostly cloudy, with a low around 44.
Saturday
Partly sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Arlington WA
 48.16°N 122.17°W (Elev. 138 ft)
11:26 am PDT Sep 20, 2026
11am PDT Sep 20, 2026-6pm PDT Sep 26, 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