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

Hazardous Weather Conditions

Current conditions at

Meridian, Meridian Naval Air Station - McCain Field (KNMM)

Lat: 32.55°NLon: 88.56°WElev: 318ft.

Partly Cloudy

98°F

37°C

Humidity 42%
Wind Speed W 7 mph
Barometer 29.99 in (1016.1 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index106°F (41°C)
Last update 20 Aug 1:56 pm CDT
Extended Forecast for

9 Miles NNW Preston MS

Heat Advisory August 21, 11:00am until August 21, 08:00pm
Heat Advisory August 20, 02:22pm until August 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory August 20, 02:22pm until August 20, 08:00pm

    NOW until 8:00pm Thu

    Heat Advisory

  • This Afternoon

    High: 99 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Increasing clouds, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.

    Low: 72 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Friday

    Friday: A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.

    High: 96 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Friday Night

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

    Low: 70 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 97. Calm wind becoming north around 5 mph in the afternoon.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 71. Calm wind.

    Low: 71 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.

    High: 96 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 1am. Mostly clear, with a low around 71. North northeast wind around 5 mph becoming calm.

    Low: 71 °F

    Mostly Clear
    then Slight
    Chance
    Showers

Detailed Forecast

This Afternoon
A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 99. Heat index values as high as 109. West wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 1am. Increasing clouds, with a low around 72. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Friday
A slight chance of showers and thunderstorms between 1pm and 4pm. Mostly sunny, with a high near 96. Heat index values as high as 105. Calm wind becoming north northwest around 5 mph in the afternoon. Chance of precipitation is 20%.
Friday Night
Mostly clear, with a low around 70. West northwest wind around 5 mph becoming calm.
Saturday
Sunny and hot, with a high near 97. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Partly cloudy, with a low around 71. Calm wind.
Sunday
Mostly sunny, with a high near 96. Calm wind becoming west around 5 mph in the afternoon.
Sunday Night
A 20 percent chance of showers after 1am. Mostly clear, with a low around 71. North northeast wind around 5 mph becoming calm.
Monday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 94. North northeast wind around 5 mph becoming northwest in the morning. Chance of precipitation is 20%.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 70. Chance of precipitation is 20%.
Tuesday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Tuesday Night
A 20 percent chance of showers. Mostly clear, with a low around 72.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 95.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles NNW Preston MS
 32.97°N 88.88°W
Last Update:
2:15 pm CDT Aug 20, 2026
Forecast Valid:
2pm CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation