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

Hazardous Weather Conditions

Current conditions at

Winona-Montgomery County Airport (K5A6)

Lat: 33.47°NLon: 89.73°WElev: 364ft.

Fair

77°F

25°C

Humidity 80%
Wind Speed Calm
Barometer 29.94 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 20 Aug 1:55 am CDT
Extended Forecast for

Thomastown MS

Heat Advisory August 20, 11:00am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Patchy smoke before 4am. Partly cloudy, with a low around 75. Southwest wind around 5 mph.

    Low: 75 °F

    Patchy Smoke

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Heat index values as high as 107. West wind around 5 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 73. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 73 °F

    Heavy Rain
    then Mostly
    Cloudy

  • Friday

    Friday: A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 97 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Calm wind.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70. Calm wind.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 95. Calm wind.

    High: 95 °F

    Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 71. Calm wind.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

Overnight
Patchy smoke before 4am. Partly cloudy, with a low around 75. Southwest wind around 5 mph.
Thursday
Sunny and hot, with a high near 98. Heat index values as high as 107. West wind around 5 mph.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could produce heavy rainfall. Increasing clouds, with a low around 73. Calm wind. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Friday
A slight chance of showers and thunderstorms between 3pm and 4pm. Sunny and hot, with a high near 97. Heat index values as high as 106. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 70. Calm wind.
Saturday
Sunny and hot, with a high near 97. Calm wind.
Saturday Night
Partly cloudy, with a low around 70. Calm wind.
Sunday
Sunny, with a high near 95. Calm wind.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 71. Calm wind.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.
Monday Night
A 20 percent chance of showers. Partly cloudy, with a low around 71.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 72.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Thomastown MS
 32.86°N 89.67°W
Last Update:
1:26 am CDT Aug 20, 2026
Forecast Valid:
2am CDT Aug 20, 2026-6pm CDT Aug 26, 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