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

Grant County Regional Airport (KGCD)

Lat: 44.40287°NLon: 118.96715°WElev: 3675.0ft.

Clear

67°F

19°C

Humidity 18%
Wind Speed N 0 MPH
Barometer 30.02 in (1016.59 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Last update 24 May 10:15 AM PDT
Extended Forecast for

Mount Vernon OR

  • Today

    Today: Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.

    High: 84 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 48. Northwest wind around 6 mph becoming calm in the evening.

    Low: 48 °F

    Mostly Clear

  • Memorial Day

    Memorial Day: A 30 percent chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 87. East wind 5 to 10 mph becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 29 mph.

    High: 87 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 8pm, then showers after 11pm. Low around 41. Northwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Showers

  • Tuesday

    Tuesday: Showers likely, mainly before 11am. Mostly cloudy, with a high near 57. Northwest wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Showers
    Likely then
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: Showers likely, mainly after 11pm. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.

    Low: 39 °F

    Showers
    Likely

  • Wednesday

    Wednesday: Showers likely, mainly before 11am. Partly sunny, with a high near 63. Chance of precipitation is 60%.

    High: 63 °F

    Showers
    Likely then
    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 75. Chance of precipitation is 50%.

    High: 75 °F

    Chance
    Showers

Detailed Forecast

Today
Sunny, with a high near 84. Calm wind becoming west around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 48. Northwest wind around 6 mph becoming calm in the evening.
Memorial Day
A 30 percent chance of showers and thunderstorms after 5pm. Increasing clouds, with a high near 87. East wind 5 to 10 mph becoming southwest 13 to 18 mph in the morning. Winds could gust as high as 29 mph.
Monday Night
A chance of showers and thunderstorms before 8pm, then showers after 11pm. Low around 41. Northwest wind 15 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Showers likely, mainly before 11am. Mostly cloudy, with a high near 57. Northwest wind 8 to 11 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Showers likely, mainly after 11pm. Mostly cloudy, with a low around 39. Chance of precipitation is 60%.
Wednesday
Showers likely, mainly before 11am. Partly sunny, with a high near 63. Chance of precipitation is 60%.
Wednesday Night
A 20 percent chance of showers after 11pm. Partly cloudy, with a low around 41.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 11am. Partly sunny, with a high near 75. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 46.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 70.
Friday Night
Partly cloudy, with a low around 41.
Saturday
Mostly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon OR
 44.42°N 119.11°W (Elev. 3054 ft)
Last Update:
10:11 am PDT May 24, 2026
Forecast Valid:
10am PDT May 24, 2026-6pm PDT May 30, 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