As of 05:25 EDT

Weather in Port St. John, FL

75°Current weather

Port St. John, Monday, 26 October, 05:25

Mostly clear. Feels like 76°. High 82°, low 71°.

Pressure30.03 inHg
Wind12.7 mph NE
Humidity81%
Visibility6.2 mi
Dew point68°

Monthly outlook for Port St. John, FL: average high 82.2°, average low 68°. That is 3° above the climate normal for October. Precipitation is expected on 5 days (about 0.6 inches), against a normal of 5 days and 1.3 inches. The warmest day looks like 2 November (88.8°), the coolest 6 November (56.1°).

82.2°/68°
Average high / low
+3°
Above normal
5 / 5
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
26 October – 4 November83.7°77.4°+3.5°
5 November – 14 November79.7°75.3°+2.4°
15 November – 24 Novemberat normal73.9°—

October records over 66 years

89.8°22 October 2019All-time high
48.9°30 October 2017All-time low

Climate normals and records are computed from the nearest reference point — Tropical Park (8 mi).

Tue, 2783° / 74°0Overcast
83 °Overcast

Port St. John, Tuesday, 27 October

Overcast. High 83°, low 74°.

Pressure30.06 inHg
Wind16.9 mph NE
Humidity51%
Visibility6.2 mi
Dew point60°
Wed, 2879° / 72°0.2Rain
79 °Rain

Port St. John, Wednesday, 28 October

Rain. High 79°, low 72°.

Pressure30.03 inHg
Wind13.6 mph NE
Humidity78%
Visibility6.2 mi
Dew point70°
Thu, 2981° / 71°0.04Light rain
81 °Light rain

Port St. John, Thursday, 29 October

Light rain. High 81°, low 71°.

Pressure30.00 inHg
Wind7.6 mph NE
Humidity71%
Visibility6.2 mi
Dew point72°
Fri, 3083° / 74°0.03Light rain
83 °Light rain

Port St. John, Friday, 30 October

Light rain. High 83°, low 74°.

Pressure30.00 inHg
Wind12.7 mph NE
Humidity60%
Visibility—
Dew point66°
Sat, 3182° / 73°0.06Light rain
82 °Light rain

Port St. John, Saturday, 31 October

Light rain. High 82°, low 73°.

Pressure30.06 inHg
Wind12.1 mph E
Humidity63%
Visibility—
Dew point67°
Sun, 0186° / 72°0.07Light rain
86 °Light rain

Port St. John, Sunday, 1 November

Light rain. High 86°, low 72°.

Pressure29.94 inHg
Wind6.5 mph NE
Humidity59%
Visibility—
Dew point68°
Mon, 0289° / 71°0.02Light rain
89 °Light rain

Port St. John, Monday, 2 November

Light rain. High 89°, low 71°.

Pressure29.83 inHg
Wind8.9 mph W
Humidity46%
Visibility—
Dew point63°
Tue, 0387° / 68°0Mostly clear
87 °Mostly clear

Port St. John, Tuesday, 3 November

Mostly clear. High 87°, low 68°.

Pressure29.85 inHg
Wind5 mph E
Humidity41%
Visibility—
Dew point58°
Wed, 0486° / 67°0Clear
86 °Clear

Port St. John, Wednesday, 4 November

Clear. High 86°, low 67°.

Pressure29.91 inHg
Wind5.1 mph S
Humidity45%
Visibility—
Dew point60°
Thu, 0583° / 63°0Mostly clear
83 °Mostly clear

Port St. John, Thursday, 5 November

Mostly clear. High 83°, low 63°.

Pressure29.88 inHg
Wind10.5 mph W
Humidity37%
Visibility—
Dew point52°
Fri, 0678° / 56°0Clear
78 °Clear

Port St. John, Friday, 6 November

Clear. High 78°, low 56°.

Pressure29.91 inHg
Wind7 mph NE
Humidity33%
Visibility—
Dew point44°
Sat, 0778° / 58°0Clear
78 °Clear

Port St. John, Saturday, 7 November

Clear. High 78°, low 58°.

Pressure29.97 inHg
Wind8.7 mph NE
Humidity42%
Visibility—
Dew point51°
Sun, 0880° / 63°0.01Light rain
80 °Light rain

Port St. John, Sunday, 8 November

Light rain. High 80°, low 63°.

Pressure30.00 inHg
Wind9.8 mph NE
Humidity52%
Visibility—
Dew point59°
Mon, 0978° / 66°0.02Light rain
78 °Light rain

Port St. John, Monday, 9 November

Light rain. High 78°, low 66°.

Pressure30.00 inHg
Wind9.1 mph NE
Humidity59%
Visibility—
Dew point61°
Tue, 1081° / 67°0.03Light rain
81 °Light rain

Port St. John, Tuesday, 10 November

Light rain. High 81°, low 67°.

Pressure29.97 inHg
Wind9.1 mph E
Humidity52%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1176° / 67°0.05Climate normal
76 °Climate normal

Port St. John, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high76°
Average low67°
Average precipitation0.05 in
Chance of precipitation23%
Record high83° (2023)
Record low38° (2025)
Thu, 1275° / 66°0.06Climate normal
75 °Climate normal

Port St. John, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.06 in
Chance of precipitation20%
Record high83° (2002)
Record low44° (2025)
Fri, 1375° / 65°0.06Climate normal
75 °Climate normal

Port St. John, Friday, 13 November

Climate normal for this date — 60-year average.

Average high75°
Average low65°
Average precipitation0.06 in
Chance of precipitation32%
Record high83° (2018)
Record low45° (1968)
Sat, 1474° / 66°0.04Climate normal
74 °Climate normal

Port St. John, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high74°
Average low66°
Average precipitation0.04 in
Chance of precipitation22%
Record high83° (1970)
Record low48° (1963)
Sun, 1575° / 66°0.06Climate normal
75 °Climate normal

Port St. John, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.06 in
Chance of precipitation23%
Record high81° (2006)
Record low42° (1969)
Mon, 1674° / 65°0.09Climate normal
74 °Climate normal

Port St. John, Monday, 16 November

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.09 in
Chance of precipitation22%
Record high82° (2010)
Record low49° (1969)
Tue, 1774° / 66°0.07Climate normal
74 °Climate normal

Port St. John, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high74°
Average low66°
Average precipitation0.07 in
Chance of precipitation18%
Record high82° (1986)
Record low49° (1970)
Wed, 1874° / 65°0.04Climate normal
74 °Climate normal

Port St. John, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.04 in
Chance of precipitation17%
Record high82° (1986)
Record low49° (1983)
Thu, 1975° / 66°0.05Climate normal
75 °Climate normal

Port St. John, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high75°
Average low66°
Average precipitation0.05 in
Chance of precipitation22%
Record high82° (1984)
Record low53° (2008)
Fri, 2074° / 66°0.09Climate normal
74 °Climate normal

Port St. John, Friday, 20 November

Climate normal for this date — 60-year average.

Average high74°
Average low66°
Average precipitation0.09 in
Chance of precipitation35%
Record high83° (1986)
Record low49° (1968)
Sat, 2173° / 65°0.11Climate normal
73 °Climate normal

Port St. John, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high73°
Average low65°
Average precipitation0.11 in
Chance of precipitation28%
Record high80° (1962)
Record low49° (2006)
Sun, 2273° / 64°0.06Climate normal
73 °Climate normal

Port St. John, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high73°
Average low64°
Average precipitation0.06 in
Chance of precipitation32%
Record high82° (2025)
Record low47° (2006)
Mon, 2373° / 64°0.12Climate normal
73 °Climate normal

Port St. John, Monday, 23 November

Climate normal for this date — 60-year average.

Average high73°
Average low64°
Average precipitation0.12 in
Chance of precipitation30%
Record high82° (2025)
Record low46° (2024)
Tue, 2474° / 65°0.03Climate normal
74 °Climate normal

Port St. John, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high74°
Average low65°
Average precipitation0.03 in
Chance of precipitation28%
Record high82° (2018)
Record low44° (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 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.