Weather in Key Largo, FL
Key Largo, Sunday, 18 October, 13:12
Overcast. Feels like 86°. High 81°, low 77°.
Monthly outlook for Key Largo, FL: average high 81.4°, average low 77.5°. That is 1° above the climate normal for October. Precipitation is expected on 11 days (about 5.9 inches), against a normal of 6 days and 1.7 inches. The warmest day looks like 28 October (83.1°), the coolest 21 October (71.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 80.6° | 79.9° | +0.4° |
| 28 October – 6 November | 82.8° | 78.8° | +2.2° |
| 7 November – 16 November | at normal | 77.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Tavernier (10 mi).
0.2
Key Largo, Monday, 19 October
Rain. High 82°, low 78°.
0.06Key Largo, Tuesday, 20 October
Light rain. High 81°, low 75°.
0
Key Largo, Wednesday, 21 October
Clear. High 81°, low 72°.
0.03Key Largo, Thursday, 22 October
Light rain. High 79°, low 73°.
0.32Key Largo, Friday, 23 October
Rain. High 78°, low 73°.
0.41Key Largo, Saturday, 24 October
Rain. High 79°, low 76°.
1.52Key Largo, Sunday, 25 October
Rain. High 80°, low 76°.
1.2Key Largo, Monday, 26 October
Heavy rain. High 82°, low 76°.
0.64Key Largo, Tuesday, 27 October
Rain. High 83°, low 81°.
0.46Key Largo, Wednesday, 28 October
Rain. High 83°, low 79°.
0.33Key Largo, Thursday, 29 October
Rain. High 83°, low 80°.
0.01Key Largo, Friday, 30 October
Light rain. High 83°, low 81°.
0Key Largo, Saturday, 31 October
Light rain. High 83°, low 81°.
0.05Key Largo, Sunday, 1 November
Light rain. High 83°, low 81°.
0.04Key Largo, Monday, 2 November
Light rain. High 82°, low 81°.
0.1
Key Largo, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Key Largo, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Key Largo, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08
Key Largo, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Key Largo, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Key Largo, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Key Largo, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Key Largo, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.05Key Largo, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06
Key Largo, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Key Largo, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Key Largo, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Key Largo, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1Key Largo, Monday, 16 November
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 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.
Sun and moon today
Weather history
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