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

Flash Flooding Continuing Along the Gulf Coast; Dry Thunderstorms in the West

Excessive rainfall continues to produce life-threatening, locally catastrophic flash flooding along the central Gulf Coast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts Oregon, California, and the Great Basin into the weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Regional Airport (KOSA)

Lat: 33.1°NLon: 94.96°WElev: 364ft.

Partly Cloudy

79°F

26°C

Humidity 79%
Wind Speed E 10 mph
Barometer 29.99 in
Dewpoint 72°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 19 Jun 2:35 pm CDT
Extended Forecast for

Mount Vernon TX

Flood Watch until June 19, 07:00pm
Click here for hazard details and duration
Flood Watch
  •  
    Flood Watch until June 19, 07:00pm

    NOW until 7:00pm Fri

    Flood Watch

  • Juneteenth

    High: 83 °F

    Showers
    Likely

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 72 °F

    Chance
    T-storms then
    Showers
    Likely

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 87. Southeast wind around 5 mph. Chance of precipitation is 60%.

    High: 87 °F

    Showers
    Likely then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. South wind 5 to 10 mph. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 90. South wind 10 to 15 mph, with gusts as high as 25 mph.

    High: 90 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 76. Chance of precipitation is 20%.

    Low: 76 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    Showers
    Likely

Detailed Forecast

Juneteenth
Showers likely and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Mostly cloudy, with a high near 83. Northeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 4am. Mostly cloudy, with a low around 72. East wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Saturday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms after 7am. Partly sunny, with a high near 87. Southeast wind around 5 mph. Chance of precipitation is 60%.
Saturday Night
A slight chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 1am. Partly cloudy, with a low around 74. South wind 5 to 10 mph. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 90. South wind 10 to 15 mph, with gusts as high as 25 mph.
Sunday Night
A slight chance of showers between 1am and 4am, then a slight chance of showers and thunderstorms after 4am. Mostly clear, with a low around 76. Chance of precipitation is 20%.
Monday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 91.
Monday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 88.
Tuesday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 86.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Vernon TX
 33.15°N 95.22°W (Elev. 509 ft)
Last Update:
1:25 pm CDT Jun 19, 2026
Forecast Valid:
2pm CDT Jun 19, 2026-6pm CDT Jun 25, 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