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 >

Hazardous Weather Conditions

Current conditions at

Burlington/Mount Vernon, Skagit Regional Airport (KBVS)

Lat: 48.47083°NLon: 122.42083°WElev: 144.0ft.

Mostly Cloudy

46°F

8°C

Humidity 75%
Wind Speed WSW 5 MPH
Barometer 30.26 in (1024.72 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 Mar 10:15 AM PDT
Extended Forecast for

Mount Vernon WA

Flood Warning March 21, 10:44am until March 22, 09:07am
Click here for hazard details and duration
Flood Warning
  •  
    Flood Warning March 21, 10:44am until March 22, 09:07am

    NOW until 9:07am Sun

    Flood Warning

  • Today

    High: 49 °F

    Sunny

  • Tonight

    Tonight: A 30 percent chance of rain, mainly after 3am. Partly cloudy, with a low around 37. Calm wind becoming southeast around 6 mph after midnight.

    Low: 37 °F

    Partly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 50. South southeast wind around 6 mph becoming light and variable in the afternoon.

    High: 50 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 51. Calm wind becoming west northwest around 6 mph in the afternoon.

    High: 51 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain after 11pm. Cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. High near 53. Chance of precipitation is 100%.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain

Detailed Forecast

Today
Sunny, with a high near 49. West southwest wind 3 to 6 mph.
Tonight
A 30 percent chance of rain, mainly after 3am. Partly cloudy, with a low around 37. Calm wind becoming southeast around 6 mph after midnight.
Sunday
A 40 percent chance of rain, mainly before 11am. Mostly cloudy, with a high near 50. South southeast wind around 6 mph becoming light and variable in the afternoon.
Sunday Night
Mostly cloudy, with a low around 35. Light and variable wind.
Monday
Mostly cloudy, with a high near 51. Calm wind becoming west northwest around 6 mph in the afternoon.
Monday Night
A 40 percent chance of rain after 11pm. Cloudy, with a low around 40.
Tuesday
Rain. High near 53. Chance of precipitation is 100%.
Tuesday Night
Rain. Mostly cloudy, with a low around 41.
Wednesday
Rain. Mostly cloudy, with a high near 52.
Wednesday Night
Rain likely, mainly before 11pm. Mostly cloudy, with a low around 38.
Thursday
A chance of rain. Partly sunny, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 36.
Friday
A slight chance of rain. Partly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon WA
 48.41°N 122.34°W (Elev. 10 ft)
Last Update:
11:27 pm PDT Mar 20, 2026
Forecast Valid:
10am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
Forecast Discussion
 
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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