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

99°F

37°C

Humidity 37%
Wind Speed W 7 mph
Barometer 30.03 in
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Heat Index105°F (41°C)
Last update 17 Aug 1:15 pm CDT
Extended Forecast for

Grenada MSSimilar City Names

Heat Advisory August 18, 11:00am until August 18, 08:00pm
Extreme Heat Warning August 17, 01:37pm until August 17, 08:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Extreme Heat Warning August 17, 01:37pm until August 17, 08:00pm

    NOW until 8:00pm Mon

    Extreme Heat Warning

  • This Afternoon

    High: 100 °F

    Hot

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 20%.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming north northwest around 5 mph.

    High: 98 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 75. Calm wind.

    Low: 75 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Calm wind becoming west southwest around 5 mph.

    High: 101 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Partly Cloudy

  • Thursday

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

    High: 96 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.

    Low: 72 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Sunny and hot, with a high near 100. Heat index values as high as 108. West wind around 5 mph.
Tonight
A slight chance of showers and thunderstorms between 8pm and 11pm. Partly cloudy, with a low around 75. Calm wind. Chance of precipitation is 20%.
Tuesday
Sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind becoming north northwest around 5 mph.
Tuesday Night
Partly cloudy, with a low around 75. Calm wind.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 101. Calm wind becoming west southwest around 5 mph.
Wednesday Night
Partly cloudy, with a low around 76. Calm wind.
Thursday
A chance of showers, with thunderstorms also possible after 10am. Mostly sunny, with a high near 96. Calm wind becoming west southwest around 5 mph. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Partly cloudy, with a low around 72. Calm wind. Chance of precipitation is 30%.
Friday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 95. Calm wind becoming west northwest around 5 mph.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 96.
Saturday Night
Mostly clear, with a low around 70.
Sunday
Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Grenada MSSimilar City Names
 33.77°N 89.81°W
Last Update:
1:26 pm CDT Aug 17, 2026
Forecast Valid:
1pm CDT Aug 17, 2026-6pm CDT Aug 23, 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