Weather in Port St. John, FL
Port St. John, Thursday, 12 November, 05:49
Overcast. Feels like 66°. High 81°, low 65°.
Monthly outlook for Port St. John, FL: average high 76.3°, average low 63.3°. That is 1.2° above the climate normal for November. Precipitation is expected on 6 days (about 1.9 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 25 November (83.8°), the coolest 14 November (49°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 74.7° | 74.3° | +0.2° |
| 22 November – 1 December | 79.1° | 73.3° | +3.2° |
| 2 December – 11 December | at normal | 72.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Tropical Park (8 mi).
0
Port St. John, Friday, 13 November
Clear. High 76°, low 58°.
0Port St. John, Saturday, 14 November
Overcast. High 64°, low 49°.
0
Port St. John, Sunday, 15 November
Mostly clear. High 74°, low 52°.
0Port St. John, Monday, 16 November
Overcast. High 73°, low 60°.
0.23
Port St. John, Tuesday, 17 November
Rain. High 76°, low 66°.
0.92Port St. John, Wednesday, 18 November
Rain. High 69°, low 66°.
0.54Port St. John, Thursday, 19 November
Rain. High 71°, low 70°.
0.05Port St. John, Friday, 20 November
Light rain. High 81°, low 68°.
0Port St. John, Saturday, 21 November
Overcast. High 81°, low 66°.
0.02Port St. John, Sunday, 22 November
Light rain. High 81°, low 65°.
0.02Port St. John, Monday, 23 November
Light rain. High 80°, low 65°.
0Port St. John, Tuesday, 24 November
Mostly clear. High 80°, low 62°.
0.04Port St. John, Wednesday, 25 November
Light rain. High 84°, low 65°.
0Port St. John, Thursday, 26 November
Overcast. High 75°, low 63°.
0.04Port St. John, Friday, 27 November
Light rain. High 75°, low 71°.
0.06
Port St. John, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Port St. John, Sunday, 29 November
Climate normal for this date — 60-year average.
0.07Port St. John, Monday, 30 November
Climate normal for this date — 60-year average.
0.02Port St. John, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.03Port St. John, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.03Port St. John, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Port St. John, Friday, 4 December
Climate normal for this date — 60-year average.
0.06Port St. John, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04Port St. John, Sunday, 6 December
Climate normal for this date — 60-year average.
0.06Port St. John, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Port St. John, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.09Port St. John, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Port St. John, Thursday, 10 December
Climate normal for this date — 60-year average.
0.04Port St. John, Friday, 11 December
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 Port St. John, 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 Port St. John, 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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