St. Marks, St. Marks River, FL Weather Forecast and Current Conditions

Day Sky High / Low Precip Wind Humidity
Thu
Aug 13 		Isolated Thunderstorms
Close Hourly 		94º / 76º 31% W 10 mph 71%
9am Sunny 80º 4% WNW 3 mph 87%
10am Sunny 84º 4% WNW 4 mph 79%
11am Sunny 87º 2% WNW 6 mph 72%
12pm Mostly Sunny 90º 2% WNW 6 mph 65%
1pm Partly Cloudy 92º 9% W 5 mph 61%
2pm Mostly Cloudy 92º 23% WSW 6 mph 60%
3pm Isolated Thunderstorms 91º 34% SSW 7 mph 64%
4pm Mostly Cloudy 90º 24% SSW 9 mph 66%
5pm Mostly Cloudy 90º 24% SSW 10 mph 66%
6pm Mostly Cloudy 89º 23% SW 8 mph 69%
7pm Mostly Cloudy 87º 16% SW 7 mph 70%
8pm Mostly Cloudy 85º 19% SW 5 mph 77%
9pm Partly Cloudy 83º 8% SW 3 mph 83%
10pm Partly Cloudy 82º 7% WSW 3 mph 87%
11pm Partly Cloudy 81º 11% W 2 mph 87%
Fri
Aug 14 		Mostly Sunny
View Hourly 		95º / 75º 23% W 9 mph 72%
12am Partly Cloudy 80º 6% W 3 mph 88%
1am Partly Cloudy 80º 7% W 2 mph 91%
2am Mostly Clear 79º 7% W 2 mph 93%
3am Partly Cloudy 78º 8% W 2 mph 96%
4am Partly Cloudy 78º 8% WNW 2 mph 96%
5am Mostly Clear 77º 9% WNW 2 mph 97%
6am Mostly Clear 77º 12% NW 2 mph 97%
7am Partly Cloudy 77º 13% NW 2 mph 98%
8am Mostly Sunny 78º 14% NW 2 mph 97%
9am Mostly Sunny 82º 9% NW 3 mph 89%
10am Mostly Sunny 85º 6% NW 5 mph 79%
11am Mostly Sunny 89º 5% NW 5 mph 69%
12pm Mostly Sunny 91º 4% NW 4 mph 63%
1pm Partly Cloudy 92º 3% W 3 mph 59%
2pm Mostly Cloudy 93º 15% SSW 5 mph 57%
3pm Mostly Cloudy 93º 18% S 8 mph 60%
4pm Partly Cloudy 93º 22% SSW 9 mph 61%
5pm Mostly Cloudy 91º 22% SSW 9 mph 63%
6pm Mostly Cloudy 89º 23% SSW 8 mph 68%
7pm Mostly Cloudy 87º 18% SSW 7 mph 72%
8pm Mostly Cloudy 85º 15% SSW 5 mph 75%
9pm Partly Cloudy 83º 15% SSW 3 mph 80%
10pm Mostly Cloudy 81º 15% SW 3 mph 84%
11pm Partly Cloudy 81º 8% SW 2 mph 85%
Sat
Aug 15 		PM Thunderstorms
View Hourly 		94º / 75º 41% W 9 mph 70%
12am Mostly Clear 80º 12% WSW 2 mph 87%
1am Clear 79º 6% WNW 1 mph 88%
2am Mostly Clear 78º 6% NW 1 mph 90%
3am Clear 78º 7% NW 1 mph 91%
4am Clear 77º 7% NNW 1 mph 92%
5am Mostly Clear 76º 7% NW 1 mph 93%
6am Partly Cloudy 76º 8% NNW 1 mph 93%
7am Partly Cloudy 76º 9% NW 1 mph 94%
8am Mostly Sunny 77º 12% NNW 2 mph 91%
Sun
Aug 16 		Isolated Thunderstorms 95º / 77º 31% W 9 mph 69%
Mon
Aug 17 		PM Thunderstorms 95º / 78º 45% W 10 mph 70%
Tue
Aug 18 		Mostly Sunny 97º / 77º 24% W 11 mph 68%
Wed
Aug 19 		PM Thunderstorms 96º / 77º 43% W 9 mph 69%
Thu
Aug 20 		PM Thunderstorms 95º / 76º 36% W 9 mph 69%

Weather Radar for St. Marks, St. Marks River, FL See Radar

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* Playback displays weather for the past 6 hours.

NOAA Weather Marine Forecast for St. Marks, St. Marks River, FL

Today
High : 93ºF
WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers and thunderstorms, mainly between 2pm and 5pm. Seas 1 ft or less.
Tonight
Low : 79ºF
W wind 5 to 10 kt. A slight chance of showers and thunderstorms before 7pm. Seas 1 ft or less.
Friday
High : 94ºF
WNW wind 5 to 10 kt becoming SSW in the morning. A slight chance of showers and thunderstorms between 1pm and 4pm. Seas 1 ft or less.
Friday Night
Low : 79ºF
Variable winds 5 kt or less. Mostly clear. Seas 1 ft or less.
Saturday
High : 93ºF
Variable winds 5 kt or less. A chance of showers and thunderstorms after 1pm. Seas 1 ft or less.
Saturday Night
Low : 79ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Sunday
High : 93ºF
NW wind 5 to 10 kt becoming SSW in the afternoon. A slight chance of showers and thunderstorms after 1pm. Seas 1 ft or less.
Sunday Night
Low : 79ºF
Variable winds 5 kt or less. Partly cloudy. Seas 1 ft or less.
Monday
High : 93ºF
WNW wind 5 to 10 kt becoming SSW in the afternoon. A chance of showers and thunderstorms after 1pm. Seas 1 ft or less.

NOAA Buoy Data Near St. Marks, St. Marks River, FL See Map

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    Wind Speed Forecast for St. Marks, St. Marks River, FL

    ThursdayFridaySaturday
    Wind Speed (MPH) 3510322339311
    1pm5pm9pm1am5am9am1pm5pm9pm1am5am9am
    MPH 3510322339311
    DIR WNWWSSWSWWWNWNWWSSWSSWWNWNW

    Current Weather Conditions In St. Marks, St. Marks River, FL

    As Of: 25 minutes ago

    • 80ºF
    • 88ºF
    • 3mph
    • 0º (WNW)
    • 3mph
    • Sunny
    • 10mi
    • 30.05"
    • 87%
    • 0ºF

    The weather right now in St. Marks, St. Marks River, FL is Sunny. The current temperature is 80°F, and the expected high and low for today, Thursday, August 13, 2026, are 94° high temperature and 76°F low temperature. The wind is currently blowing at 3 miles per hour, and coming from the West Northwest. The wind is gusting to 3 mph. With the wind and the atmosphere the temperature feels like 88° Fahrenheit. Expected precipitation is 4 percent, with current humidity at 87 percent, and air pressure at 30.05 in. Visibility is 10 nautical miles. There are 2 current weather alert(s).

    Weather Alerts
    Extreme Heat Watch - 2:27am Thu Aug 13 2026

    ...EXTREME HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7 PM CDT/ THIS EVENING...

    WHAT: For the Heat Advisory, heat index values up to 112 expected.
    For the Extreme Heat Watch, dangerously hot conditions with heat
    index values up to 116 possible.

    WHERE: Portions of the Big Bend and Panhandle of Florida.

    WHEN: For the Heat Advisory, from noon EDT /11 AM CDT/ today to 8
    PM EDT /7 PM CDT/ this evening. For the Extreme Heat Watch, from
    Friday afternoon through Friday evening.

    IMPACTS: Heat related illnesses increase significantly during
    extreme heat and high humidity events. Hot temperatures and high
    humidity may cause heat illnesses.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Drink plenty of fluids, stay in an air-conditioned room, stay out of
    the sun, and check up on relatives and neighbors.

    Do not leave young children and pets in unattended vehicles. Car
    interiors will reach lethal temperatures in a matter of minutes.

    Take extra precautions when outside. Wear lightweight and loose
    fitting clothing. Try to limit strenuous activities to early morning
    or evening. Take action when you see symptoms of heat exhaustion and
    heat stroke.

    &&

    Heat Advisory - 2:27am Thu Aug 13 2026

    ...EXTREME HEAT WATCH IN EFFECT FROM FRIDAY AFTERNOON THROUGH FRIDAY EVENING... ...HEAT ADVISORY REMAINS IN EFFECT FROM NOON EDT /11 AM CDT/ TODAY TO 8 PM EDT /7 PM CDT/ THIS EVENING...

    WHAT: For the Heat Advisory, heat index values up to 112 expected.
    For the Extreme Heat Watch, dangerously hot conditions with heat
    index values up to 116 possible.

    WHERE: Portions of the Big Bend and Panhandle of Florida.

    WHEN: For the Heat Advisory, from noon EDT /11 AM CDT/ today to 8
    PM EDT /7 PM CDT/ this evening. For the Extreme Heat Watch, from
    Friday afternoon through Friday evening.

    IMPACTS: Heat related illnesses increase significantly during
    extreme heat and high humidity events. Hot temperatures and high
    humidity may cause heat illnesses.

    PRECAUTIONARY / PREPAREDNESS ACTIONS:

    Drink plenty of fluids, stay in an air-conditioned room, stay out of
    the sun, and check up on relatives and neighbors.

    Do not leave young children and pets in unattended vehicles. Car
    interiors will reach lethal temperatures in a matter of minutes.

    Take extra precautions when outside. Wear lightweight and loose
    fitting clothing. Try to limit strenuous activities to early morning
    or evening. Take action when you see symptoms of heat exhaustion and
    heat stroke.

    &&