Weather in Key Biscayne, FL
Key Biscayne, Tuesday, 13 October, 03:19
Rain. Feels like 79°. High 91°, low 76°.
Monthly outlook for Key Biscayne, FL: average high 83.8°, average low 77.4°. That is 1.3° above the climate normal for October. Precipitation is expected on 13 days (about 4.8 inches), against a normal of 7 days and 2.2 inches. The warmest day looks like 13 October (91.3°), the coolest 28 October (68.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 October – 22 October | 84.9° | 81.7° | +1.8° |
| 23 October – 1 November | 81.8° | 80.7° | +0.6° |
| 2 November – 11 November | at normal | 79.3° | — |
October records over 66 years
0.13Key Biscayne, Wednesday, 14 October
Rain. High 90°, low 77°.
0.18Key Biscayne, Thursday, 15 October
Light rain. High 85°, low 78°.
0.19Key Biscayne, Friday, 16 October
Light rain. High 87°, low 75°.
0.37Key Biscayne, Saturday, 17 October
Rain. High 84°, low 74°.
1.04Key Biscayne, Sunday, 18 October
Rain. High 79°, low 74°.
0.52Key Biscayne, Monday, 19 October
Light rain. High 82°, low 81°.
0.22Key Biscayne, Tuesday, 20 October
Light rain. High 84°, low 81°.
0.43Key Biscayne, Wednesday, 21 October
Rain. High 84°, low 81°.
0.19Key Biscayne, Thursday, 22 October
Light rain. High 84°, low 80°.
0.51Key Biscayne, Friday, 23 October
Rain. High 82°, low 79°.
0.45Key Biscayne, Saturday, 24 October
Light rain. High 82°, low 80°.
0.4Key Biscayne, Sunday, 25 October
Light rain. High 82°, low 79°.
0.18Key Biscayne, Monday, 26 October
Light rain. High 85°, low 78°.
0
Key Biscayne, Tuesday, 27 October
Clear. High 83°, low 76°.
0Key Biscayne, Wednesday, 28 October
Clear. High 77°, low 69°.
0.09
Key Biscayne, Thursday, 29 October
Climate normal for this date — 60-year average.
0.1Key Biscayne, Friday, 30 October
Climate normal for this date — 60-year average.
0.1Key Biscayne, Saturday, 31 October
Climate normal for this date — 60-year average.
0.1Key Biscayne, Sunday, 1 November
Climate normal for this date — 60-year average.
0.12Key Biscayne, Monday, 2 November
Climate normal for this date — 60-year average.
0.14Key Biscayne, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.13Key Biscayne, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Key Biscayne, Thursday, 5 November
Climate normal for this date — 60-year average.
0.08Key Biscayne, Friday, 6 November
Climate normal for this date — 60-year average.
0.07
Key Biscayne, Saturday, 7 November
Climate normal for this date — 60-year average.
0.11Key Biscayne, Sunday, 8 November
Climate normal for this date — 60-year average.
0.12Key Biscayne, Monday, 9 November
Climate normal for this date — 60-year average.
0.08Key Biscayne, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Key Biscayne, Wednesday, 11 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 Biscayne, 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 Biscayne, 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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