10-day forecast for St. Marks, FL: 75° to 97°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
95°
Best day: Wednesday, August 12
94° · 0.43 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1093° / 77°0.01
Morning79°feels 79°
Afternoon92°feels 100°
Evening85°feels 93°
Overnight79°feels 79°
93 °
St. Marks, Monday, 10 August
Light rain. High 93°, low 77°.
Pressure30.15 inHg
Wind3.2 mph S
Humidity56%
Visibility6.2 mi
Dew point72°
Tue, 1193° / 77°0
Morning79°feels 79°
Afternoon93°feels 100°
Evening86°feels 92°
Overnight80°feels 85°
93 °
St. Marks, Tuesday, 11 August
Clear. High 93°, low 77°.
Pressure30.12 inHg
Wind4.6 mph S
Humidity49%
Visibility6.2 mi
Dew point69°
Wed, 1295° / 78°0
Morning79°feels 79°
Afternoon95°feels 102°
Evening88°feels 92°
Overnight79°feels 79°
95 °
St. Marks, Wednesday, 12 August
Clear. High 95°, low 78°.
Pressure30.06 inHg
Wind4.4 mph SW
Humidity48%
Visibility6.2 mi
Dew point70°
Thu, 1394° / 78°0
Morning83°feels 85°
Afternoon93°feels 100°
Evening87°feels 93°
Overnight82°feels 87°
94 °
St. Marks, Thursday, 13 August
Overcast. High 94°, low 78°.
Pressure30.00 inHg
Wind12.5 mph S
Humidity46%
Visibility—
Dew point68°
Fri, 1495° / 79°0
Morning84°feels 85°
Afternoon94°feels 98°
Evening86°feels 92°
Overnight82°feels 85°
95 °
St. Marks, Friday, 14 August
Overcast. High 95°, low 79°.
Pressure30.09 inHg
Wind13.7 mph S
Humidity41%
Visibility—
Dew point66°
Sat, 1594° / 77°0.43
Morning84°feels 86°
Afternoon91°feels 98°
Evening77°feels 79°
Overnight78°feels 79°
94 °
St. Marks, Saturday, 15 August
Rain. High 94°, low 77°.
Pressure30.15 inHg
Wind13 mph S
Humidity48%
Visibility—
Dew point70°
Sun, 1692° / 77°0
Morning81°feels 84°
Afternoon88°feels 96°
Evening85°feels 93°
Overnight82°feels 87°
92 °
St. Marks, Sunday, 16 August
Overcast. High 92°, low 77°.
Pressure30.12 inHg
Wind4.4 mph S
Humidity59%
Visibility—
Dew point71°
Mon, 1792° / 80°0.06
Morning83°feels 90°
Afternoon90°feels 101°
Evening81°feels 87°
Overnight80°feels 86°
92 °
St. Marks, Monday, 17 August
Light rain. High 92°, low 80°.
Pressure30.09 inHg
Wind9.5 mph S
Humidity58%
Visibility—
Dew point74°
Tue, 1897° / 75°0.4
Morning85°feels 88°
Afternoon96°feels 106°
Evening88°feels 97°
Overnight76°feels 77°
97 °
St. Marks, Tuesday, 18 August
Rain. High 97°, low 75°.
Pressure30.00 inHg
Wind9.8 mph NE
Humidity46%
Visibility—
Dew point71°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in St. Marks, FL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.