Monthly outlook for Big Coppitt Key, FL: average high 78.3°, average low 76.3°. That is 0.5° above the climate normal for November. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 8 November (80.6°), the coolest 15 November (69.3°).
78.3°/76.3°
Average high / low
+0.5°
Above normal
7 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
78.4°
77.7°
+0.4°
16 November – 25 November
78°
76.7°
+0.7°
26 November – 5 December
at normal
76.1°
—
November records over 66 years
83.3°4 November 2019All-time high
56.5°25 November 1970All-time low
Climate normals and records are computed from the nearest reference point — Stock Island (5 mi).
Sat, 0780° / 79°0
80 °
Big Coppitt Key, Saturday, 7 November
Light rain. High 80°, low 79°.
Pressure29.94 inHg
Wind8.3 mph NE
Humidity77%
Visibility6.2 mi
Dew point72°
Sun, 0881° / 78°0.02
81 °
Big Coppitt Key, Sunday, 8 November
Light rain. High 81°, low 78°.
Pressure30.00 inHg
Wind10.5 mph NE
Humidity81%
Visibility6.2 mi
Dew point72°
Mon, 0980° / 78°0.02
80 °
Big Coppitt Key, Monday, 9 November
Light rain. High 80°, low 78°.
Pressure30.06 inHg
Wind11.5 mph NE
Humidity81%
Visibility6.2 mi
Dew point72°
Tue, 1080° / 79°0.08
80 °
Big Coppitt Key, Tuesday, 10 November
Light rain. High 80°, low 79°.
Pressure30.06 inHg
Wind16 mph E
Humidity76%
Visibility—
Dew point71°
Wed, 1179° / 78°0.01
79 °
Big Coppitt Key, Wednesday, 11 November
Light rain. High 79°, low 78°.
Pressure30.00 inHg
Wind12.7 mph E
Humidity66%
Visibility—
Dew point66°
Thu, 1278° / 77°0
78 °
Big Coppitt Key, Thursday, 12 November
Light rain. High 78°, low 77°.
Pressure29.85 inHg
Wind6.2 mph NW
Humidity70%
Visibility—
Dew point67°
Fri, 1377° / 73°0.19
77 °
Big Coppitt Key, Friday, 13 November
Light rain. High 77°, low 73°.
Pressure29.85 inHg
Wind11 mph N
Humidity77%
Visibility—
Dew point67°
Sat, 1475° / 73°0.01
75 °
Big Coppitt Key, Saturday, 14 November
Light rain. High 75°, low 73°.
Pressure29.91 inHg
Wind22.5 mph NE
Humidity74%
Visibility—
Dew point66°
Sun, 1575° / 69°0
75 °
Big Coppitt Key, Sunday, 15 November
Overcast. High 75°, low 69°.
Pressure30.06 inHg
Wind23.9 mph E
Humidity68%
Visibility—
Dew point60°
Mon, 1676° / 73°0.01
76 °
Big Coppitt Key, Monday, 16 November
Light rain. High 76°, low 73°.
Pressure30.21 inHg
Wind28.2 mph E
Humidity62%
Visibility—
Dew point61°
Tue, 1777° / 74°0.22
77 °
Big Coppitt Key, Tuesday, 17 November
Light rain. High 77°, low 74°.
Pressure30.15 inHg
Wind26.7 mph E
Humidity68%
Visibility—
Dew point65°
Wed, 1878° / 77°0.22
78 °
Big Coppitt Key, Wednesday, 18 November
Light rain. High 78°, low 77°.
Pressure30.09 inHg
Wind26 mph E
Humidity76%
Visibility—
Dew point70°
Thu, 1979° / 78°0.08
79 °
Big Coppitt Key, Thursday, 19 November
Light rain. High 79°, low 78°.
Pressure30.06 inHg
Wind24.9 mph E
Humidity78%
Visibility—
Dew point71°
Fri, 2079° / 78°0.06
79 °
Big Coppitt Key, Friday, 20 November
Light rain. High 79°, low 78°.
Pressure30.03 inHg
Wind23.5 mph E
Humidity79%
Visibility—
Dew point71°
Sat, 2179° / 78°0.05
79 °
Big Coppitt Key, Saturday, 21 November
Light rain. High 79°, low 78°.
Pressure29.85 inHg
Wind20.2 mph E
Humidity81%
Visibility—
Dew point73°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2276° / 73°0.06
76 °
Big Coppitt Key, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.06 in
Chance of precipitation20%
Record high80° (1988)
Record low64° (2006)
Mon, 2376° / 73°0.04
76 °
Big Coppitt Key, Monday, 23 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.04 in
Chance of precipitation18%
Record high80° (1986)
Record low65° (1976)
Tue, 2477° / 73°0.03
77 °
Big Coppitt Key, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high77°
Average low73°
Average precipitation0.03 in
Chance of precipitation27%
Record high81° (2022)
Record low60° (1970)
Wed, 2576° / 74°0.05
76 °
Big Coppitt Key, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high76°
Average low74°
Average precipitation0.05 in
Chance of precipitation25%
Record high81° (1972)
Record low56° (1970)
Thu, 2677° / 74°0.04
77 °
Big Coppitt Key, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high77°
Average low74°
Average precipitation0.04 in
Chance of precipitation27%
Record high81° (2023)
Record low67° (1995)
Fri, 2777° / 74°0.03
77 °
Big Coppitt Key, Friday, 27 November
Climate normal for this date — 60-year average.
Average high77°
Average low74°
Average precipitation0.03 in
Chance of precipitation17%
Record high81° (2022)
Record low61° (1962)
Sat, 2876° / 73°0.03
76 °
Big Coppitt Key, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.03 in
Chance of precipitation27%
Record high80° (2022)
Record low62° (2013)
Sun, 2976° / 73°0.04
76 °
Big Coppitt Key, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.04 in
Chance of precipitation27%
Record high81° (2022)
Record low63° (2003)
Mon, 3076° / 73°0.05
76 °
Big Coppitt Key, Monday, 30 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.05 in
Chance of precipitation32%
Record high80° (2022)
Record low64° (1980)
Tue, 0176° / 73°0.05
76 °
Big Coppitt Key, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.05 in
Chance of precipitation20%
Record high81° (2022)
Record low63° (1965)
Wed, 0276° / 73°0.01
76 °
Big Coppitt Key, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.01 in
Chance of precipitation12%
Record high80° (2023)
Record low64° (1960)
Thu, 0376° / 73°0.02
76 °
Big Coppitt Key, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.02 in
Chance of precipitation17%
Record high80° (1983)
Record low63° (2008)
Fri, 0476° / 73°0.05
76 °
Big Coppitt Key, Friday, 4 December
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.05 in
Chance of precipitation18%
Record high80° (1983)
Record low61° (1989)
Sat, 0576° / 72°0.04
76 °
Big Coppitt Key, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.04 in
Chance of precipitation23%
Record high80° (2009)
Record low61° (1981)
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 Big Coppitt Key, 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 Big Coppitt Key, 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.