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.

Partly Cloudy

86°F

30°C

Humidity 68%
Wind Speed Calm
Barometer 30.06 in
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index94°F (34°C)
Last update 18 Aug 10:55 am CDT
Extended Forecast for

Winona MS

Heat Advisory August 19, 11:00am until August 19, 09:00pm
Heat Advisory until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory until August 18, 08:00pm

    NOW until 8:00pm Tue

    Heat Advisory

  • Today

    High: 98 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming west southwest around 5 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.

    High: 96 °F

    Chance
    T-storms

  • Thursday Night

    Thursday 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 72. Calm wind. Chance of precipitation is 20%.

    Low: 72 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Calm wind becoming west northwest around 5 mph.

    High: 95 °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

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 106. Calm wind becoming northwest around 5 mph.
Tonight
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 74. Calm wind.
Wednesday
Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming west southwest around 5 mph.
Wednesday Night
A 10 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph. Chance of precipitation is 30%.
Thursday 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 72. Calm wind. Chance of precipitation is 20%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Calm wind becoming west northwest around 5 mph.
Friday Night
Mostly clear, with a low around 70. Calm wind.
Saturday
Sunny, with a high near 95. Calm wind becoming north around 5 mph.
Saturday Night
Clear, with a low around 69.
Sunday
Sunny, with a high near 96.
Sunday Night
A 20 percent chance of showers. Mostly clear, with a low around 70.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Winona MS
 33.5°N 89.72°W
Last Update:
10:31 am CDT Aug 18, 2026
Forecast Valid:
11am CDT Aug 18, 2026-6pm CDT Aug 24, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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