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.

Mostly Cloudy

95°F

35°C

Humidity 46%
Wind Speed N 13 mph
Barometer 30.04 in (1017.8 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 18 Aug 11:56 am CDT
Extended Forecast for

5 Miles N Porterville 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: 98 °F

    Chance
    T-storms

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog between 1am and 4am. Otherwise, mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 40%.

    Low: 74 °F

    Chance
    T-storms then
    Patchy Fog

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms after 5pm. Patchy fog before 7am. Otherwise, sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind.

    High: 98 °F

    Patchy Fog
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind.

    Low: 74 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind.

    High: 96 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.

    Low: 73 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming west northwest around 5 mph.

    High: 94 °F

    Mostly Sunny
    then Chance
    T-storms

  • Friday Night

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

    Low: 72 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A 30 percent chance of showers and thunderstorms, mainly after 4pm. Mostly sunny and hot, with a high near 98. Heat index values as high as 109. Northwest wind around 5 mph.
Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Patchy fog between 1am and 4am. Otherwise, mostly cloudy, with a low around 74. Calm wind. Chance of precipitation is 40%.
Wednesday
A 30 percent chance of showers and thunderstorms after 5pm. Patchy fog before 7am. Otherwise, sunny and hot, with a high near 98. Heat index values as high as 107. Calm wind.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 74. Calm wind.
Thursday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 96. Calm wind.
Thursday Night
A chance of showers and thunderstorms before 10pm, then a chance of showers between 10pm and 1am. Partly cloudy, with a low around 73. Calm wind. Chance of precipitation is 30%.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming west northwest around 5 mph.
Friday Night
Partly cloudy, with a low around 72. Calm wind.
Saturday
Sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 96.
Sunday Night
Mostly clear, with a low around 71.
Monday
A 20 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:
5 Miles N Porterville MS
 32.73°N 88.46°W
Last Update:
11:15 am CDT Aug 18, 2026
Forecast Valid:
12pm CDT Aug 18, 2026-6pm CDT Aug 24, 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