Weather in St. Marks, FL
St. Marks, Monday, 12 October, 08:30
Clear. Feels like 73°. High 89°, low 66°.
Monthly outlook for St. Marks, FL: average high 81.5°, average low 66.7°. That is 1.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.5 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 13 October (89.1°), the coolest 18 October (62.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 83.6° | 79.5° | +2.3° |
| 22 October – 31 October | 78° | 77° | +0.6° |
| 1 November – 10 November | at normal | 73.7° | — |
October records over 66 years
0St. Marks, Tuesday, 13 October
Clear. High 89°, low 64°.
0St. Marks, Wednesday, 14 October
Clear. High 89°, low 63°.
0St. Marks, Thursday, 15 October
Clear. High 87°, low 64°.
0
St. Marks, Friday, 16 October
Overcast. High 89°, low 69°.
0St. Marks, Saturday, 17 October
Clear. High 81°, low 66°.
0.01
St. Marks, Sunday, 18 October
Light rain. High 76°, low 63°.
0
St. Marks, Monday, 19 October
Mostly clear. High 82°, low 66°.
0.4St. Marks, Tuesday, 20 October
Rain. High 81°, low 73°.
0.14St. Marks, Wednesday, 21 October
Light rain. High 73°, low 67°.
0.05St. Marks, Thursday, 22 October
Light rain. High 70°, low 68°.
0St. Marks, Friday, 23 October
Light rain. High 81°, low 68°.
0
St. Marks, Saturday, 24 October
Partly cloudy. High 82°, low 68°.
0St. Marks, Sunday, 25 October
Overcast. High 82°, low 68°.
0.39St. Marks, Monday, 26 October
Rain. High 74°, low 68°.
0.52St. Marks, Tuesday, 27 October
Rain. High 78°, low 68°.
0.11St. Marks, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06St. Marks, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12St. Marks, Friday, 30 October
Climate normal for this date — 60-year average.
0.06St. Marks, Saturday, 31 October
Climate normal for this date — 60-year average.
0.07St. Marks, Sunday, 1 November
Climate normal for this date — 60-year average.
0.04St. Marks, Monday, 2 November
Climate normal for this date — 60-year average.
0.06St. Marks, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.14St. Marks, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.04St. Marks, Thursday, 5 November
Climate normal for this date — 60-year average.
0.07St. Marks, Friday, 6 November
Climate normal for this date — 60-year average.
0.09St. Marks, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04St. Marks, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12St. Marks, Monday, 9 November
Climate normal for this date — 60-year average.
0.11St. Marks, Tuesday, 10 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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