Monthly outlook for St. Marks, FL: average high 73.7°, average low 56°. That is 1.8° below the climate normal for October. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 3 days and 1.0 inches. The warmest day looks like 27 October (81.2°), the coolest 22 October (49.5°).
73.7°/56°
Average high / low
−1.8°
Below normal
3 / 3
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
77°
77.6°
-0.3°
29 October – 7 November
68.1°
74.7°
-3.7°
8 November – 17 November
at normal
71.2°
—
October records over 66 years
92.8°4 October 1971All-time high
39.6°20 October 2022All-time low
Tue, 2075° / 54°0
75 °
St. Marks, Tuesday, 20 October
Clear. High 75°, low 54°.
Pressure30.21 inHg
Wind6.8 mph NE
Humidity41%
Visibility6.2 mi
Dew point44°
Wed, 2178° / 50°0
78 °
St. Marks, Wednesday, 21 October
Mostly clear. High 78°, low 50°.
Pressure30.18 inHg
Wind4.9 mph NE
Humidity45%
Visibility6.2 mi
Dew point50°
Thu, 2278° / 49°0
78 °
St. Marks, Thursday, 22 October
Clear. High 78°, low 49°.
Pressure30.15 inHg
Wind3.4 mph NE
Humidity42%
Visibility6.2 mi
Dew point49°
Fri, 2377° / 50°0
77 °
St. Marks, Friday, 23 October
Clear. High 77°, low 50°.
Pressure30.12 inHg
Wind7.2 mph NE
Humidity36%
Visibility—
Dew point44°
Sat, 2474° / 55°0
74 °
St. Marks, Saturday, 24 October
Clear. High 74°, low 55°.
Pressure30.24 inHg
Wind11 mph NE
Humidity45%
Visibility—
Dew point49°
Sun, 2577° / 60°0
77 °
St. Marks, Sunday, 25 October
Clear. High 77°, low 60°.
Pressure30.21 inHg
Wind14.1 mph NE
Humidity50%
Visibility—
Dew point55°
Mon, 2680° / 63°0
80 °
St. Marks, Monday, 26 October
Partly cloudy. High 80°, low 63°.
Pressure30.15 inHg
Wind10.9 mph NE
Humidity51%
Visibility—
Dew point58°
Tue, 2781° / 66°0
81 °
St. Marks, Tuesday, 27 October
Overcast. High 81°, low 66°.
Pressure30.06 inHg
Wind9.3 mph E
Humidity55%
Visibility—
Dew point62°
Wed, 2874° / 68°0.81
74 °
St. Marks, Wednesday, 28 October
Rain. High 74°, low 68°.
Pressure29.94 inHg
Wind8.2 mph NE
Humidity94%
Visibility—
Dew point68°
Thu, 2971° / 61°0.63
71 °
St. Marks, Thursday, 29 October
Rain. High 71°, low 61°.
Pressure29.83 inHg
Wind11.4 mph NE
Humidity94%
Visibility—
Dew point67°
Fri, 3058° / 56°0.14
58 °
St. Marks, Friday, 30 October
Light rain. High 58°, low 56°.
Pressure30.03 inHg
Wind11.8 mph NE
Humidity84%
Visibility—
Dew point52°
Sat, 3164° / 51°0
64 °
St. Marks, Saturday, 31 October
Clear. High 64°, low 51°.
Pressure30.30 inHg
Wind13.5 mph NE
Humidity44%
Visibility—
Dew point39°
Sun, 0169° / 50°0
69 °
St. Marks, Sunday, 1 November
Partly cloudy. High 69°, low 50°.
Pressure30.36 inHg
Wind12.5 mph NE
Humidity50%
Visibility—
Dew point47°
Mon, 0272° / 51°0
72 °
St. Marks, Monday, 2 November
Clear. High 72°, low 51°.
Pressure30.30 inHg
Wind9.2 mph NE
Humidity47%
Visibility—
Dew point48°
Tue, 0375° / 55°0
75 °
St. Marks, Tuesday, 3 November
Clear. High 75°, low 55°.
Pressure30.24 inHg
Wind6.7 mph NE
Humidity50%
Visibility—
Dew point53°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0474° / 57°0.14
74 °
St. Marks, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high74°
Average low57°
Average precipitation0.14 in
Chance of precipitation22%
Record high87° (2016)
Record low36° (1966)
Thu, 0573° / 57°0.04
73 °
St. Marks, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high73°
Average low57°
Average precipitation0.04 in
Chance of precipitation22%
Record high86° (2024)
Record low39° (1991)
Fri, 0673° / 56°0.07
73 °
St. Marks, Friday, 6 November
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.07 in
Chance of precipitation17%
Record high85° (2022)
Record low40° (1976)
Sat, 0773° / 56°0.09
73 °
St. Marks, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.09 in
Chance of precipitation18%
Record high87° (2024)
Record low39° (1967)
Sun, 0873° / 56°0.04
73 °
St. Marks, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.04 in
Chance of precipitation15%
Record high85° (2022)
Record low40° (1967)
Mon, 0973° / 56°0.12
73 °
St. Marks, Monday, 9 November
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.12 in
Chance of precipitation28%
Record high84° (2020)
Record low38° (1976)
Tue, 1073° / 56°0.11
73 °
St. Marks, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high73°
Average low56°
Average precipitation0.11 in
Chance of precipitation17%
Record high84° (2020)
Record low42° (2019)
Wed, 1173° / 55°0.06
73 °
St. Marks, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high73°
Average low55°
Average precipitation0.06 in
Chance of precipitation17%
Record high84° (2023)
Record low32° (2025)
Thu, 1272° / 55°0.07
72 °
St. Marks, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high72°
Average low55°
Average precipitation0.07 in
Chance of precipitation13%
Record high82° (2020)
Record low30° (2025)
Fri, 1370° / 53°0.08
70 °
St. Marks, Friday, 13 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.08 in
Chance of precipitation12%
Record high82° (2024)
Record low36° (1968)
Sat, 1470° / 52°0.09
70 °
St. Marks, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high70°
Average low52°
Average precipitation0.09 in
Chance of precipitation20%
Record high80° (2005)
Record low39° (1968)
Sun, 1570° / 53°0.13
70 °
St. Marks, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.13 in
Chance of precipitation23%
Record high80° (1985)
Record low33° (1969)
Mon, 1670° / 53°0.06
70 °
St. Marks, Monday, 16 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.06 in
Chance of precipitation22%
Record high80° (2025)
Record low36° (1969)
Tue, 1770° / 53°0.09
70 °
St. Marks, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high70°
Average low53°
Average precipitation0.09 in
Chance of precipitation18%
Record high80° (1964)
Record low36° (1970)
About the monthly outlook
How accurate is a 30-day forecast?
The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for St. Marks, FL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.
Where do the 66-year records come from?
They are real temperature extremes recorded in St. Marks, FL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.