National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Arlington Municipal Airport (KAWO)

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

Clear

52°F

11°C

Humidity 46%
Wind Speed W 5 MPH
Barometer 30.31 in (1026.41 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 21 Mar 03:35 PM PDT
Extended Forecast for

Arlington WA

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. Calm wind becoming southeast around 5 mph.

    Low: 35 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 10 percent chance of rain before 7am. Partly sunny, with a high near 52. Light and variable wind.

    High: 52 °F

    Slight Chance
    Rain then
    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 33. Light north wind.

    Low: 33 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 53. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 53 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 50 percent chance of rain after 11pm. Cloudy, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 53. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then rain likely after 11pm. Low around 38. Chance of precipitation is 90%.

    Low: 38 °F

    Showers

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 51.

    High: 51 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely

Detailed Forecast

Tonight
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. Calm wind becoming southeast around 5 mph.
Sunday
A 10 percent chance of rain before 7am. Partly sunny, with a high near 52. Light and variable wind.
Sunday Night
Mostly cloudy, with a low around 33. Light north wind.
Monday
Partly sunny, with a high near 53. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
A 50 percent chance of rain after 11pm. Cloudy, with a low around 39. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Rain. High near 53. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then rain likely after 11pm. Low around 38. Chance of precipitation is 90%.
Wednesday
Rain. Mostly cloudy, with a high near 51.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Partly sunny, with a high near 53.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 33.
Friday
A slight chance of rain. Partly sunny, with a high near 56.
Friday Night
Partly cloudy, with a low around 35.
Saturday
A slight chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arlington WA
 48.19°N 122.11°W (Elev. 200 ft)
Last Update:
2:01 pm PDT Mar 21, 2026
Forecast Valid:
3pm PDT Mar 21, 2026-6pm PDT Mar 28, 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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation