Weather in Derby, KY
Derby, Sunday, 11 October, 07:26
Overcast. Feels like 59°. High 76°, low 59°.
Monthly outlook for Derby, KY: average high 71.5°, average low 49.5°. That is 2.1° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 12 October (85.6°), the coolest 18 October (29.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 October – 20 October | 71.3° | 68.8° | +1.4° |
| 21 October – 30 October | 71.7° | 65.1° | +3.7° |
| 31 October – 9 November | at normal | 61.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Sturgis (8 mi).
0
Derby, Monday, 12 October
Clear. High 86°, low 60°.
0Derby, Tuesday, 13 October
Clear. High 85°, low 66°.
0.01
Derby, Wednesday, 14 October
Light rain. High 80°, low 70°.
0.28Derby, Thursday, 15 October
Rain. High 84°, low 68°.
0.06Derby, Friday, 16 October
Light rain. High 71°, low 50°.
0Derby, Saturday, 17 October
Overcast. High 46°, low 35°.
0Derby, Sunday, 18 October
Clear. High 53°, low 29°.
0Derby, Monday, 19 October
Clear. High 62°, low 33°.
0Derby, Tuesday, 20 October
Clear. High 70°, low 39°.
0Derby, Wednesday, 21 October
Overcast. High 72°, low 45°.
0Derby, Thursday, 22 October
Clear. High 76°, low 50°.
0Derby, Friday, 23 October
Clear. High 76°, low 52°.
0
Derby, Saturday, 24 October
Partly cloudy. High 79°, low 55°.
0Derby, Sunday, 25 October
Clear. High 61°, low 41°.
0Derby, Monday, 26 October
Clear. High 66°, low 39°.
0.17Derby, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.1Derby, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.14Derby, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Derby, Friday, 30 October
Climate normal for this date — 60-year average.
0.16Derby, Saturday, 31 October
Climate normal for this date — 60-year average.
0.17
Derby, Sunday, 1 November
Climate normal for this date — 60-year average.
0.07Derby, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Derby, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.06Derby, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.09Derby, Thursday, 5 November
Climate normal for this date — 60-year average.
0.12Derby, Friday, 6 November
Climate normal for this date — 60-year average.
0.13Derby, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04
Derby, Sunday, 8 November
Climate normal for this date — 60-year average.
0.08Derby, Monday, 9 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 Derby, KY 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 Derby, KY 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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