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.

Partly Cloudy

100°F

38°C

Humidity 45%
Wind Speed W 9 mph
Barometer 29.95 in (1013.6 mb)
Dewpoint 75°F (24°C)
Visibility 10.00 mi
Heat Index114°F (46°C)
Last update 21 Aug 2:54 pm CDT
Extended Forecast for

2 Miles WNW Harperville MS

Heat Advisory August 21, 03:51pm until August 21, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory August 21, 03:51pm until August 21, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 98 °F

    Chance
    T-storms

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Northeast wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny and hot, with a high near 100. Heat index values as high as 103. Calm wind becoming north around 5 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 72. Calm wind.

    Low: 72 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny and hot, with a high near 99. Calm wind becoming north northeast around 5 mph.

    High: 99 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Calm wind becoming north around 5 mph.

    High: 93 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly before 5pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 107. Northwest wind around 5 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 72. Northeast wind around 5 mph becoming calm in the evening.
Saturday
Sunny and hot, with a high near 100. Heat index values as high as 103. Calm wind becoming north around 5 mph.
Saturday Night
Partly cloudy, with a low around 72. Calm wind.
Sunday
Sunny and hot, with a high near 99. Calm wind becoming north northeast around 5 mph.
Sunday Night
Mostly clear, with a low around 72. Calm wind.
Monday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 93. Calm wind becoming north around 5 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. Calm wind.
Tuesday
A 20 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 95. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 73.
Wednesday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 95.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Thursday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles WNW Harperville MS
 32.49°N 89.5°W
Last Update:
3:15 pm CDT Aug 21, 2026
Forecast Valid:
3pm CDT Aug 21, 2026-6pm CDT Aug 27, 2026
 
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