Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Mount Pleasant, Mount Pleasant Regional Airport (KOSA)

Lat: 33.1°NLon: 94.96°WElev: 364ft.

Fair

82°F

28°C

Humidity 64%
Wind Speed S 6 mph
Barometer 29.93 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 20 Aug 2:10 am CDT
Extended Forecast for

5 Miles S Mount Pleasant TX

Extreme Heat Warning August 20, 10:00am until August 20, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Overnight

    Overnight: Mostly clear, with a low around 79. Southwest wind around 5 mph.

    Low: 79 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 105. Heat index values as high as 108. Southwest wind 5 to 10 mph.

    High: 105 °F

    Hot

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 76. South wind around 5 mph becoming northeast in the evening.  Chance of precipitation is 20%.

    Low: 76 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm.  Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph becoming north in the afternoon.

    High: 104 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am.  Partly cloudy, with a low around 75. South wind around 5 mph becoming calm  in the evening.

    Low: 75 °F

    Slight Chance
    T-storms

  • Saturday

    Saturday: Mostly sunny and hot, with a high near 103.

    High: 103 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 102.

    High: 102 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 76.

    Low: 76 °F

    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 79. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 105. Heat index values as high as 108. Southwest wind 5 to 10 mph.
Thursday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 76. South wind around 5 mph becoming northeast in the evening. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 104. Heat index values as high as 109. Southwest wind around 5 mph becoming north in the afternoon.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75. South wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny and hot, with a high near 103.
Saturday Night
Partly cloudy, with a low around 74.
Sunday
Sunny and hot, with a high near 102.
Sunday Night
Mostly clear, with a low around 76.
Monday
Sunny and hot, with a high near 101.
Monday Night
Mostly clear, with a low around 76.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 101.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 100.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles S Mount Pleasant TX
 33.11°N 94.97°W (Elev. 361 ft)
2:15 am CDT Aug 20, 2026
2am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
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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