Weather in Key West, FL
Key West, Sunday, 18 October, 18:33
Overcast. Feels like 88°. High 83°, low 76°.
Monthly outlook for Key West, FL: average high 81.4°, average low 79°. That is 0.9° above the climate normal for October. Precipitation is expected on 12 days (about 3.7 inches), against a normal of 6 days and 1.8 inches. The warmest day looks like 18 October (83.3°), the coolest 18 October (75.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 18 October – 27 October | 81.3° | 80.1° | +0.7° |
| 28 October – 6 November | 81.4° | 78.9° | +1.4° |
| 7 November – 16 November | at normal | 77.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Stock Island (3 mi).
0.18
Key West, Monday, 19 October
Rain. High 83°, low 79°.
0.04Key West, Tuesday, 20 October
Light rain. High 83°, low 79°.
0
Key West, Wednesday, 21 October
Clear. High 82°, low 78°.
0Key West, Thursday, 22 October
Clear. High 80°, low 77°.
0.25Key West, Friday, 23 October
Light rain. High 79°, low 77°.
0.21Key West, Saturday, 24 October
Light rain. High 78°, low 77°.
0.56Key West, Sunday, 25 October
Rain. High 81°, low 79°.
0Key West, Monday, 26 October
Clear. High 82°, low 79°.
0.25Key West, Tuesday, 27 October
Light rain. High 82°, low 80°.
0.18Key West, Wednesday, 28 October
Light rain. High 81°, low 81°.
0.06Key West, Thursday, 29 October
Light rain. High 81°, low 80°.
0.17Key West, Friday, 30 October
Light rain. High 82°, low 81°.
0.02Key West, Saturday, 31 October
Light rain. High 82°, low 81°.
0.06Key West, Sunday, 1 November
Light rain. High 81°, low 80°.
0.16Key West, Monday, 2 November
Light rain. High 81°, low 80°.
0.09
Key West, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Key West, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.13
Key West, Thursday, 5 November
Climate normal for this date — 60-year average.
0.06Key West, Friday, 6 November
Climate normal for this date — 60-year average.
0.14Key West, Saturday, 7 November
Climate normal for this date — 60-year average.
0.08Key West, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Key West, Monday, 9 November
Climate normal for this date — 60-year average.
0.07Key West, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Key West, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06
Key West, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Key West, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Key West, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Key West, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Key West, 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 West, 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 West, 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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