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Hazardous Weather Conditions

Current conditions at

Jackson, Jackson International Airport (KJAN)

Lat: 32.32°NLon: 90.08°WElev: 344ft.

Fair

84°F

29°C

Humidity 74%
Wind Speed Calm
Barometer 29.95 in (1013.5 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index92°F (33°C)
Last update 20 Aug 8:54 am CDT
Extended Forecast for

3 Miles SSW Polkville MS

Heat Advisory August 20, 10:00am until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory

  • Today

    Today: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 101. Calm wind.

    High: 98 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 73. North wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms then
    Partly Cloudy

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 92 °F

    Mostly Sunny
    then 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 71. North wind around 5 mph becoming calm. Chance of precipitation is 20%.

    Low: 71 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming north northeast around 5 mph.

    High: 93 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm.

    Low: 70 °F

    Mostly Clear

  • Saturday

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

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 70. East wind around 5 mph becoming calm.

    Low: 70 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 96. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 96 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 101. Calm wind.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Partly cloudy, with a low around 73. North wind around 5 mph becoming calm. Chance of precipitation is 40%.
Thursday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 92. Heat index values as high as 98. Calm wind becoming north northwest around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
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 71. North wind around 5 mph becoming calm. Chance of precipitation is 20%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming north northeast around 5 mph.
Friday Night
Mostly clear, with a low around 70. Northeast wind around 5 mph becoming calm.
Saturday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Calm wind becoming north around 5 mph.
Saturday Night
Mostly clear, with a low around 70. East wind around 5 mph becoming calm.
Sunday
Sunny, with a high near 96. Calm wind becoming north northwest around 5 mph in the afternoon.
Sunday Night
Mostly clear, with a low around 70.
Monday
Sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 66.
Tuesday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 90.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Polkville MS
 32.16°N 89.7°W
Last Update:
8:15 am CDT Aug 20, 2025
Forecast Valid:
9am CDT Aug 20, 2025-6pm CDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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