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

Remnants of Arthur and Heavy Rainfall Across the South; Severe Weather for the East

Potential life threatening flash flooding across the northern Gulf Coast states as the remnants of Arthur track across the area. Remember, turn around - don't drown. In addition, severe thunderstorms with tornadoes are possible with the circulation of this storm. The threat for more severe thunderstorms will occur across portions of the Northeast, mid-Atlantic and central Appalachian's. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Regional Airport (KOSA)

Lat: 33.1°NLon: 94.96°WElev: 364ft.

Fair

87°F

31°C

Humidity 62%
Wind Speed NE 6 mph
Barometer 29.75 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 18 Jun 11:35 am CDT
Extended Forecast for

Mount Pleasant TX

Heat Advisory June 18, 12:00pm until June 18, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: Mostly sunny, with a high near 92. Heat index values as high as 103. East wind around 5 mph.

    High: 92 °F

    Mostly Sunny

  • Tonight

    Tonight: Showers likely and possibly a thunderstorm, mainly after 4am. Increasing clouds, with a low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.

    Low: 75 °F

    Mostly Clear
    then Showers
    Likely

  • Juneteenth

    Juneteenth: Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 86. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 86 °F

    Showers

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Mostly cloudy, with a low around 73. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 70%.

    Low: 73 °F

    Showers
    Likely

  • Saturday

    Saturday: A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. South wind around 5 mph. Chance of precipitation is 70%.

    High: 87 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%.

    Low: 74 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Sunday

    Sunday: Mostly sunny, with a high near 91.

    High: 91 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77.

    Low: 77 °F

    Mostly Clear
    then Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Chance
    T-storms

Detailed Forecast

Today
Mostly sunny, with a high near 92. Heat index values as high as 103. East wind around 5 mph.
Tonight
Showers likely and possibly a thunderstorm, mainly after 4am. Increasing clouds, with a low around 75. Southeast wind around 5 mph becoming calm. Chance of precipitation is 60%.
Juneteenth
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 86. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A chance of showers and thunderstorms before 10pm, then showers likely and possibly a thunderstorm between 10pm and 4am, then showers likely after 4am. Mostly cloudy, with a low around 73. East wind around 5 mph becoming calm after midnight. Chance of precipitation is 70%.
Saturday
A chance of showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 87. South wind around 5 mph. Chance of precipitation is 70%.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 74. Chance of precipitation is 20%.
Sunday
Mostly sunny, with a high near 91.
Sunday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 77.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.
Monday Night
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
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 74.
Wednesday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Pleasant TX
 33.15°N 94.97°W (Elev. 397 ft)
Last Update:
11:01 am CDT Jun 18, 2026
Forecast Valid:
11am CDT Jun 18, 2026-6pm CDT Jun 24, 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