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

Hazardous Weather Conditions

Current conditions at

Jackson, Jackson International Airport (KJAN)

Lat: 32.32°NLon: 90.08°WElev: 344ft.

A Few Clouds

103°F

39°C

Humidity 35%
Wind Speed NW 8 mph
Barometer 29.97 in (1014.2 mb)
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index112°F (44°C)
Last update 18 Aug 3:54 pm CDT
Extended Forecast for

Mendenhall 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

  • This Afternoon

    High: 102 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 40 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. West wind around 5 mph becoming south southeast in the evening.

    Low: 75 °F

    Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. West southwest wind around 5 mph becoming northwest in the afternoon.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. South wind around 5 mph.

    Low: 75 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. West wind around 5 mph becoming calm in the afternoon.

    High: 100 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Partly Cloudy

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. West wind around 5 mph.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 102. Heat index values as high as 108. West wind around 5 mph.
Tonight
A 40 percent chance of showers and thunderstorms, mainly before 9pm. Partly cloudy, with a low around 75. West wind around 5 mph becoming south southeast in the evening.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny and hot, with a high near 100. Heat index values as high as 109. West southwest wind around 5 mph becoming northwest in the afternoon.
Wednesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 75. South wind around 5 mph.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 100. West wind around 5 mph becoming calm in the afternoon.
Thursday Night
Partly cloudy, with a low around 74. Calm wind.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 98. West wind around 5 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. Calm wind.
Saturday
Sunny and hot, with a high near 98. Calm wind becoming north northwest around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny and hot, with a high near 99.
Sunday Night
Mostly clear, with a low around 72.
Monday
Sunny and hot, with a high near 100.
Monday Night
Partly cloudy, with a low around 73.
Tuesday
A slight chance of showers and thunderstorms. Sunny and hot, with a high near 100.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mendenhall MS
 31.96°N 89.87°W
Last Update:
3:15 pm CDT Aug 18, 2026
Forecast Valid:
4pm CDT Aug 18, 2026-6pm CDT Aug 25, 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