Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Severe weather threatens mid-Atlantic into Monday night. | Click to see the impacts. Chevron right

St Marks, FL

79°F
Location Chevron down
Location News Videos
Use Current Location
Recent

St Marks

Florida

79°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
St Marks, FL Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

8 AM

78°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™85°

Heat Index80°

WindWSW 7 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts10 mph

Humidity93%

Indoor Humidity93% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™9 (Very Bright)

Cloud Cover32%

Visibility10 mi

Cloud Ceiling33400 ft

9 AM

81°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™88°

Heat Index87°

WindW 7 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts13 mph

Humidity85%

Indoor Humidity85% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

83°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 6%
Chevron down
Partly sunny

RealFeel Shade™91°

Heat Index92°

WindW 7 mph

Air QualityFair

Max UV Index4.9 (Moderate)

Wind Gusts14 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

86°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 5%
Chevron down
Partly sunny

RealFeel Shade™93°

Heat Index96°

WindW 8 mph

Air QualityFair

Max UV Index8.1 (Very High)

Wind Gusts15 mph

Humidity72%

Indoor Humidity72% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

88°
RealFeel® 104°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 5%
Chevron down
Partly sunny

RealFeel Shade™94°

Heat Index98°

WindW 8 mph

Air QualityFair

Max UV Index11.0 (Extreme)

Wind Gusts15 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

90°
RealFeel® 106°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 8%
Chevron down
Partly sunny

RealFeel Shade™95°

Heat Index100°

WindW 8 mph

Air QualityFair

Max UV Index12.0 (Extreme)

Wind Gusts15 mph

Humidity62%

Indoor Humidity62% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

93°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 49%
Chevron down
Partly sunny

RealFeel Shade™98°

Heat Index103°

WindWNW 8 mph

Air QualityFair

Max UV Index11.0 (Extreme)

Wind Gusts15 mph

Humidity56%

Indoor Humidity56% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

87°
RealFeel® 102°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. Danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 73%
Chevron down
Partly sunny w/ t-storms

RealFeel Shade™94°

Heat Index100°

WindWNW 8 mph

Air QualityFair

Max UV Index7.6 (Very High)

Wind Gusts10 mph

Humidity75%

Indoor Humidity75% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

4 PM

86°
RealFeel® 99°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 73%
Chevron down
Partly sunny w/ t-storms

RealFeel Shade™92°

Heat Index98°

WindW 7 mph

Air QualityFair

Max UV Index4.6 (Moderate)

Wind Gusts8 mph

Humidity75%

Indoor Humidity75% (Dangerously Humid)

Dew Point78° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Rain0.15 in

Visibility4 mi

Cloud Ceiling30000 ft

5 PM

86°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 30%
Chevron down
Partly sunny

RealFeel Shade™92°

Heat Index94°

WindW 7 mph

Air QualityFair

Max UV Index3.3 (Moderate)

Wind Gusts8 mph

Humidity69%

Indoor Humidity69% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

87°
RealFeel® 97°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 24%
Chevron down
Partly sunny

RealFeel Shade™93°

Heat Index96°

WindWSW 7 mph

Air QualityFair

Max UV Index2.0 (Low)

Wind Gusts8 mph

Humidity67%

Indoor Humidity67% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

85°
RealFeel® 93°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 30%
Chevron down
Partly sunny

RealFeel Shade™93°

Heat Index93°

WindWSW 7 mph

Air QualityFair

Max UV Index1.0 (Low)

Wind Gusts8 mph

Humidity71%

Indoor Humidity71% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™5 (Medium)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

82°
RealFeel® 90°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 43%
Chevron down
Mostly cloudy

RealFeel Shade™90°

Heat Index89°

WindSW 6 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts9 mph

Humidity78%

Indoor Humidity78% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

79°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 47%
Chevron down
Mostly cloudy

Heat Index83°

WindSW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity86%

Indoor Humidity86% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

78°
RealFeel® 82°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 51%
Chevron down
Thunderstorms

Heat Index80°

WindWSW 6 mph

Air QualityFair

Wind Gusts7 mph

Humidity89%

Indoor Humidity89% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

11 PM

76°
RealFeel® 84°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 40%
Chevron down
Mostly cloudy

WindWSW 5 mph

Air QualityFair

Wind Gusts6 mph

Humidity95%

Indoor Humidity95% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover76%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for St. Marks

AccuWeather's hourly forecast for St. Marks provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 78° with a RealFeel® of 90°, partly sunny with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Thursday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Severe Weather

Storms, flood threat persist across central US

2 hours ago

Weather Forecasts

Cooler air and rain to arrive for the Pacific Northwest

2 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Storms delay entry for France vs. Iraq match in Philadelphia

16 hours ago

Weather News

Utah wildfires force evacuations as crews work in hot, windy weather

19 hours ago

Multiple tornadoes filmed during severe weather outbreak

1 day ago 0:45
More Stories

Featured Stories

Weather News

Deadly heat grips France, western Europe faces extreme heat wave

18 hours ago

Astronomy

Webb telescope captures ‘sparkling’ stars being born in new image

17 hours ago

Recreation

Black bear injures teen on Washington trail

4 days ago

Astronomy

Meteorological summer vs. astronomical summer explained

4 days ago

Health

Pickle is the pumpkin spice of summer

1 week ago
World North America United States Florida St Marks

Weather Near St Marks:

  • Tallahassee, FL
  • Thomasville, GA
  • Valdosta, GA
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...