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Hazardous Weather Conditions

Current conditions at

Tallahassee International Airport (KTLH)

Lat: 30.4°NLon: 84.35°WElev: 83ft.

Fair

77°F

25°C

Humidity 96%
Wind Speed Calm
Barometer 30.05 in (1017.5 mb)
Dewpoint 76°F (24°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 15 Aug 1:53 am EDT
Extended Forecast for

Saint Marks FL

Heat Advisory August 15, 11:00am until August 15, 07:00pm
Click here for hazard details and duration
Heat Advisory

  • Overnight

    Overnight: Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Mostly Clear

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 94. Heat index values as high as 110. Calm wind becoming south southwest around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Calm wind.

    Low: 77 °F

    Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 108. Calm wind.

    High: 95 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Calm wind.

    Low: 76 °F

    Chance
    T-storms

  • Sunday

    Sunday: Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.

    High: 92 °F

    Chance
    T-storms then
    T-storms
    Likely

  • Sunday Night

    Sunday Night: Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 60%.

    Low: 75 °F

    T-storms
    Likely then
    Slight Chance
    T-storms

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 93.

    High: 93 °F

    Chance
    T-storms

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.

    Low: 75 °F

    Chance
    T-storms then
    Mostly Clear

Detailed Forecast

Overnight
Mostly clear, with a low around 77. Calm wind.
Friday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Sunny, with a high near 94. Heat index values as high as 110. Calm wind becoming south southwest around 5 mph. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 77. Calm wind.
Saturday
A 50 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny and hot, with a high near 95. Heat index values as high as 108. Calm wind.
Saturday Night
A 30 percent chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 76. Calm wind.
Sunday
Showers and thunderstorms likely, mainly after 2pm. Mostly sunny, with a high near 92. Chance of precipitation is 70%.
Sunday Night
Showers and thunderstorms likely, mainly before 8pm. Partly cloudy, with a low around 75. Chance of precipitation is 60%.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Mostly sunny, with a high near 93.
Monday Night
A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 75.
Tuesday
A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 94.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Wednesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Wednesday Night
A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 76.
Thursday
A 40 percent chance of showers and thunderstorms. Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marks FL
 30.15°N 84.23°W (Elev. 3 ft)
Last Update:
2:15 am EDT Aug 15, 2025
Forecast Valid:
2am EDT Aug 15, 2025-6pm EDT Aug 21, 2025
 
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