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

Dangerous Heat and Possible Flooding This Week

Hot temperatures and high humidity are forecast to continue across much of east Texas into the mid-Mississippi Valley through this week. Heavy to excessive rainfall occurring at times through Friday could bring areas of flooding across parts of the central Plains into the upper Midwest and Four Corners states. Read More >

Hazardous Weather Conditions

Current conditions at

Mount Pleasant, Mount Pleasant Regional Airport (KOSA)

Lat: 33.1°NLon: 94.96°WElev: 364ft.

Mostly Cloudy

100°F

38°C

Humidity 34%
Wind Speed E 9 mph
Barometer 30.01 in
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 15 Sep 4:30 pm CDT
Extended Forecast for

Pittsburg TX

Heat Advisory September 15, 04:52pm until September 16, 07:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory September 15, 04:52pm until September 16, 07:00pm

    NOW until 7:00pm Wed

    Heat Advisory

  • Tonight

    Low: 76 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 98 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75. South wind around 5 mph becoming calm.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph in the afternoon.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

  • Friday Night

    Friday Night: Mostly clear, with a low around 71.

    Low: 71 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 98.

    High: 98 °F

    Hot

Detailed Forecast

Tonight
Mostly clear, with a low around 76. South wind around 5 mph becoming calm in the evening.
Wednesday
A slight chance of showers between 1pm and 4pm, then a slight chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 105. Calm wind becoming southeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Wednesday Night
Mostly clear, with a low around 75. South wind around 5 mph becoming calm.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 104. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 74. Southeast wind around 5 mph becoming calm.
Friday
Sunny and hot, with a high near 98.
Friday Night
Mostly clear, with a low around 71.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Clear, with a low around 73.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Monday
A 30 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 95.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Pittsburg TX
 32.99°N 94.95°W (Elev. 331 ft)
Last Update:
2:55 pm CDT Sep 15, 2026
Forecast Valid:
4pm CDT Sep 15, 2026-6pm CDT Sep 22, 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