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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Hazardous Weather Conditions

Current conditions at

Grant County Regional Airport (KGCD)

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

Mostly Cloudy

63°F

17°C

Humidity 77%
Wind Speed N 0 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 16 Aug 03:35 PM PDT
Extended Forecast for

Mount Vernon OR

Flash Flood Watch until August 16, 11:00pm
Click here for hazard details and duration
Flash Flood Watch
  •  
    Flash Flood Watch until August 16, 11:00pm

    NOW until 11:00pm Sat

    Flash Flood Watch

  • This Afternoon

    High: 80 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Light west wind.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 55. Light and variable wind.

    Low: 55 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 89 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 54.

    Low: 54 °F

    Clear

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms. Cloudy, with a high near 80. West wind around 6 mph.
Tonight
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 11pm. Cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%.
Sunday
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Light west wind.
Sunday Night
A 20 percent chance of showers before 11pm. Partly cloudy, with a low around 55. Light and variable wind.
Monday
Sunny, with a high near 89. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Monday Night
Mostly clear, with a low around 53.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Clear, with a low around 54.
Wednesday
Sunny, with a high near 87.
Wednesday Night
Clear, with a low around 54.
Thursday
Sunny, with a high near 92.
Thursday Night
Clear, with a low around 55.
Friday
Sunny, with a high near 96.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 94.
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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:
3:30 pm PDT Aug 16, 2025
Forecast Valid:
4pm PDT Aug 16, 2025-6pm PDT Aug 23, 2025
 
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