Monthly outlook for San Castle, FL: average high 81.1°, average low 73.1°. That is 0.6° above the climate normal for October. Precipitation is expected on 10 days (about 3.9 inches), against a normal of 6 days and 1.6 inches. The warmest day looks like 6 November (87°), the coolest 24 October (67.6°).
81.1°/73.1°
Average high / low
+0.6°
Above normal
10 / 6
Wet days / normal
3.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
80.4°
80.4°
-0°
1 November – 10 November
82.3°
78.9°
+1.9°
11 November – 20 November
at normal
77.6°
—
October records over 66 years
91.2°12 October 2023All-time high
52.5°30 October 2017All-time low
Fri, 2383° / 68°0.06
83 °
San Castle, Friday, 23 October
Light rain. High 83°, low 68°.
Pressure30.00 inHg
Wind8.3 mph NE
Humidity57%
Visibility5.7 mi
Dew point63°
Sat, 2479° / 68°0.17
79 °
San Castle, Saturday, 24 October
Light rain. High 79°, low 68°.
Pressure30.06 inHg
Wind10.8 mph E
Humidity70%
Visibility3.0 mi
Dew point64°
Sun, 2578° / 68°0.5
78 °
San Castle, Sunday, 25 October
Rain. High 78°, low 68°.
Pressure29.97 inHg
Wind9.1 mph NE
Humidity81%
Visibility3.6 mi
Dew point69°
Mon, 2674° / 70°1.6
74 °
San Castle, Monday, 26 October
Rain. High 74°, low 70°.
Pressure29.94 inHg
Wind14.4 mph NE
Humidity88%
Visibility—
Dew point69°
Tue, 2780° / 70°0.74
80 °
San Castle, Tuesday, 27 October
Rain. High 80°, low 70°.
Pressure29.91 inHg
Wind18.3 mph NE
Humidity74%
Visibility—
Dew point70°
Wed, 2882° / 78°0.38
82 °
San Castle, Wednesday, 28 October
Light rain. High 82°, low 78°.
Pressure29.97 inHg
Wind17.7 mph NE
Humidity68%
Visibility—
Dew point70°
Thu, 2982° / 75°0.1
82 °
San Castle, Thursday, 29 October
Light rain. High 82°, low 75°.
Pressure29.91 inHg
Wind15.1 mph N
Humidity63%
Visibility—
Dew point67°
Fri, 3083° / 75°0
83 °
San Castle, Friday, 30 October
Clear. High 83°, low 75°.
Pressure29.94 inHg
Wind16 mph N
Humidity44%
Visibility—
Dew point58°
Sat, 3181° / 73°0.02
81 °
San Castle, Saturday, 31 October
Light rain. High 81°, low 73°.
Pressure30.00 inHg
Wind15.1 mph NE
Humidity51%
Visibility—
Dew point60°
Sun, 0180° / 77°0.11
80 °
San Castle, Sunday, 1 November
Light rain. High 80°, low 77°.
Pressure30.06 inHg
Wind18.2 mph NE
Humidity60%
Visibility—
Dew point65°
Mon, 0282° / 77°0.01
82 °
San Castle, Monday, 2 November
Light rain. High 82°, low 77°.
Pressure30.06 inHg
Wind13.1 mph N
Humidity49%
Visibility—
Dew point60°
Tue, 0382° / 74°0
82 °
San Castle, Tuesday, 3 November
Clear. High 82°, low 74°.
Pressure30.06 inHg
Wind12.3 mph NE
Humidity48%
Visibility—
Dew point59°
Wed, 0481° / 76°0.12
81 °
San Castle, Wednesday, 4 November
Light rain. High 81°, low 76°.
Pressure30.06 inHg
Wind15.7 mph E
Humidity64%
Visibility—
Dew point66°
Thu, 0582° / 77°0.07
82 °
San Castle, Thursday, 5 November
Light rain. High 82°, low 77°.
Pressure30.00 inHg
Wind14.3 mph E
Humidity67%
Visibility—
Dew point69°
Fri, 0687° / 75°0
87 °
San Castle, Friday, 6 November
Clear. High 87°, low 75°.
Pressure29.91 inHg
Wind7.4 mph W
Humidity49%
Visibility—
Dew point64°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0778° / 69°0.04
78 °
San Castle, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.04 in
Chance of precipitation18%
Record high85° (2015)
Record low55° (1970)
Sun, 0878° / 69°0.09
78 °
San Castle, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.09 in
Chance of precipitation33%
Record high87° (2025)
Record low58° (1970)
Mon, 0978° / 69°0.14
78 °
San Castle, Monday, 9 November
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.14 in
Chance of precipitation35%
Record high88° (2025)
Record low58° (1997)
Tue, 1079° / 69°0.08
79 °
San Castle, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high79°
Average low69°
Average precipitation0.08 in
Chance of precipitation32%
Record high88° (2015)
Record low53° (1991)
Wed, 1178° / 69°0.04
78 °
San Castle, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.04 in
Chance of precipitation30%
Record high86° (2002)
Record low46° (2025)
Thu, 1278° / 69°0.04
78 °
San Castle, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high78°
Average low69°
Average precipitation0.04 in
Chance of precipitation20%
Record high87° (2002)
Record low52° (2025)
Fri, 1378° / 68°0.04
78 °
San Castle, Friday, 13 November
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.04 in
Chance of precipitation27%
Record high85° (1997)
Record low49° (1968)
Sat, 1477° / 69°0.08
77 °
San Castle, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high77°
Average low69°
Average precipitation0.08 in
Chance of precipitation27%
Record high83° (2018)
Record low52° (1975)
Sun, 1577° / 68°0.1
77 °
San Castle, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.1 in
Chance of precipitation22%
Record high86° (2024)
Record low50° (1969)
Mon, 1677° / 68°0.1
77 °
San Castle, Monday, 16 November
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.1 in
Chance of precipitation30%
Record high84° (1989)
Record low56° (1995)
Tue, 1777° / 68°0.03
77 °
San Castle, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.03 in
Chance of precipitation13%
Record high86° (2014)
Record low51° (1970)
Wed, 1877° / 68°0.03
77 °
San Castle, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.03 in
Chance of precipitation18%
Record high85° (1986)
Record low54° (2002)
Thu, 1978° / 68°0.03
78 °
San Castle, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high78°
Average low68°
Average precipitation0.03 in
Chance of precipitation27%
Record high84° (2003)
Record low56° (1981)
Fri, 2077° / 68°0.11
77 °
San Castle, Friday, 20 November
Climate normal for this date — 60-year average.
Average high77°
Average low68°
Average precipitation0.11 in
Chance of precipitation28%
Record high85° (1986)
Record low51° (1968)
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 San Castle, 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 San Castle, 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.