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

Hazardous Weather Conditions

Current conditions at

Marianna Municipal Airport (KMAI)

Lat: 30.84°NLon: 85.18°WElev: 105ft.

A Few Clouds

92°F

33°C

Humidity 56%
Wind Speed NW 5 mph
Barometer 30.14 in (1020.3 mb)
Dewpoint 74°F (23°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 16 Aug 11:53 am CDT
Extended Forecast for

Altha FL

Heat Advisory August 16, 12:14pm until August 16, 07:00pm
Extreme Heat Warning August 17, 10:00am until August 17, 07:00pm
Click here for hazard details and duration
Heat Advisory
Extreme Heat Warning
  •  
    Heat Advisory August 16, 12:14pm until August 16, 07:00pm

    NOW until 7:00pm Sun

    Heat Advisory

  • This Afternoon

    High: 95 °F

    T-storms
    Likely

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. West southwest wind around 5 mph.

    Low: 77 °F

    Chance
    Showers then
    Partly Cloudy

  • Monday

    Monday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 110. West wind 5 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 96 °F

    Sunny then
    Chance
    Showers

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 77. West wind around 5 mph.

    Low: 77 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. West wind 5 to 10 mph.

    High: 96 °F

    Mostly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 76.

    Low: 76 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Showers and thunderstorms likely, mainly between 2pm and 5pm. Partly sunny and hot, with a high near 95. Heat index values as high as 110. West wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 77. West southwest wind around 5 mph.
Monday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 110. West wind 5 to 10 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A 30 percent chance of showers and thunderstorms before 1am. Cloudy, then gradually becoming partly cloudy, with a low around 77. West wind around 5 mph.
Tuesday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 96. West wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 76.
Wednesday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 95.
Wednesday Night
Partly cloudy, with a low around 76.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny and hot, with a high near 96.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 76.
Friday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 94.
Friday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 75.
Saturday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Altha FL
 30.58°N 85.12°W (Elev. 233 ft)
Last Update:
11:15 am CDT Aug 16, 2026
Forecast Valid:
12pm CDT Aug 16, 2026-6pm CDT Aug 22, 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