Monthly outlook for Key Largo, FL: average high 77.8°, average low 71.7°. That is 0.6° above the climate normal for November. Precipitation is expected on 6 days (about 2.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 22 November (81°), the coolest 27 November (63.2°).
77.8°/71.7°
Average high / low
+0.6°
Above normal
6 / 4
Wet days / normal
2.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
77.9°
76.9°
+0.5°
23 November – 2 December
77.6°
76.3°
+0.7°
3 December – 12 December
at normal
75.4°
—
November records over 66 years
83.7°2 November 2019All-time high
53.6°25 November 1970All-time low
Climate normals and records are computed from the nearest reference point — Tavernier (10 mi).
Sat, 1472° / 64°0
72 °
Key Largo, Saturday, 14 November
Clear. High 72°, low 64°.
Pressure30.03 inHg
Wind10.8 mph N
Humidity60%
Visibility6.2 mi
Dew point56°
Sun, 1578° / 64°0
78 °
Key Largo, Sunday, 15 November
Clear. High 78°, low 64°.
Pressure30.12 inHg
Wind15.5 mph NE
Humidity67%
Visibility6.2 mi
Dew point64°
Mon, 1678° / 75°0.01
78 °
Key Largo, Monday, 16 November
Light rain. High 78°, low 75°.
Pressure30.18 inHg
Wind19.8 mph NE
Humidity61%
Visibility6.2 mi
Dew point63°
Tue, 1778° / 76°0.12
78 °
Key Largo, Tuesday, 17 November
Light rain. High 78°, low 76°.
Pressure30.12 inHg
Wind22.5 mph E
Humidity70%
Visibility6.2 mi
Dew point68°
Wed, 1879° / 76°0.07
79 °
Key Largo, Wednesday, 18 November
Light rain. High 79°, low 76°.
Pressure30.06 inHg
Wind23.7 mph NE
Humidity69%
Visibility—
Dew point67°
Thu, 1977° / 75°1.49
77 °
Key Largo, Thursday, 19 November
Rain. High 77°, low 75°.
Pressure29.94 inHg
Wind26 mph E
Humidity81%
Visibility—
Dew point69°
Fri, 2078° / 76°0.6
78 °
Key Largo, Friday, 20 November
Rain. High 78°, low 76°.
Pressure29.91 inHg
Wind26.8 mph NE
Humidity78%
Visibility—
Dew point70°
Sat, 2179° / 76°0.09
79 °
Key Largo, Saturday, 21 November
Light rain. High 79°, low 76°.
Pressure29.91 inHg
Wind22.1 mph NE
Humidity73%
Visibility—
Dew point69°
Sun, 2281° / 73°0.02
81 °
Key Largo, Sunday, 22 November
Light rain. High 81°, low 73°.
Pressure29.85 inHg
Wind13.9 mph N
Humidity65%
Visibility—
Dew point66°
Mon, 2378° / 73°0.03
78 °
Key Largo, Monday, 23 November
Light rain. High 78°, low 73°.
Pressure29.83 inHg
Wind15.6 mph W
Humidity72%
Visibility—
Dew point68°
Tue, 2479° / 74°0
79 °
Key Largo, Tuesday, 24 November
Partly cloudy. High 79°, low 74°.
Pressure29.88 inHg
Wind14.4 mph W
Humidity67%
Visibility—
Dew point66°
Wed, 2576° / 71°0
76 °
Key Largo, Wednesday, 25 November
Clear. High 76°, low 71°.
Pressure29.94 inHg
Wind12.5 mph SE
Humidity64%
Visibility—
Dew point61°
Thu, 2679° / 66°0.39
79 °
Key Largo, Thursday, 26 November
Rain. High 79°, low 66°.
Pressure29.85 inHg
Wind25.3 mph W
Humidity75%
Visibility—
Dew point69°
Fri, 2775° / 63°0.01
75 °
Key Largo, Friday, 27 November
Light rain. High 75°, low 63°.
Pressure30.00 inHg
Wind14.2 mph N
Humidity70%
Visibility—
Dew point60°
Sat, 2877° / 74°0
77 °
Key Largo, Saturday, 28 November
Overcast. High 77°, low 74°.
Pressure30.03 inHg
Wind14.5 mph SE
Humidity64%
Visibility—
Dew point63°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2976° / 73°0.06
76 °
Key Largo, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.06 in
Chance of precipitation32%
Record high80° (2022)
Record low58° (1966)
Mon, 3076° / 73°0.05
76 °
Key Largo, Monday, 30 November
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.05 in
Chance of precipitation30%
Record high81° (2022)
Record low57° (1963)
Tue, 0176° / 73°0.05
76 °
Key Largo, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high76°
Average low73°
Average precipitation0.05 in
Chance of precipitation23%
Record high81° (2018)
Record low60° (1969)
Wed, 0276° / 72°0.02
76 °
Key Largo, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.02 in
Chance of precipitation17%
Record high81° (2022)
Record low62° (1999)
Thu, 0376° / 72°0.03
76 °
Key Largo, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.03 in
Chance of precipitation17%
Record high80° (2018)
Record low61° (2019)
Fri, 0476° / 72°0.06
76 °
Key Largo, Friday, 4 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.06 in
Chance of precipitation23%
Record high80° (1983)
Record low59° (1974)
Sat, 0576° / 72°0.06
76 °
Key Largo, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.06 in
Chance of precipitation25%
Record high80° (2009)
Record low58° (1968)
Sun, 0676° / 71°0.05
76 °
Key Largo, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high76°
Average low71°
Average precipitation0.05 in
Chance of precipitation32%
Record high80° (2025)
Record low60° (2010)
Mon, 0775° / 72°0.06
75 °
Key Largo, Monday, 7 December
Climate normal for this date — 60-year average.
Average high75°
Average low72°
Average precipitation0.06 in
Chance of precipitation22%
Record high80° (1978)
Record low55° (2010)
Tue, 0876° / 72°0.05
76 °
Key Largo, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high76°
Average low72°
Average precipitation0.05 in
Chance of precipitation27%
Record high80° (1978)
Record low55° (2010)
Wed, 0975° / 72°0.07
75 °
Key Largo, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high75°
Average low72°
Average precipitation0.07 in
Chance of precipitation35%
Record high80° (2009)
Record low57° (2020)
Thu, 1075° / 72°0.04
75 °
Key Largo, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high75°
Average low72°
Average precipitation0.04 in
Chance of precipitation27%
Record high79° (2009)
Record low56° (2017)
Fri, 1175° / 71°0.04
75 °
Key Largo, Friday, 11 December
Climate normal for this date — 60-year average.
Average high75°
Average low71°
Average precipitation0.04 in
Chance of precipitation30%
Record high79° (1986)
Record low54° (1962)
Sat, 1275° / 71°0.03
75 °
Key Largo, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high75°
Average low71°
Average precipitation0.03 in
Chance of precipitation15%
Record high80° (1972)
Record low56° (1973)
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 Key Largo, 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 Key Largo, 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.