Weather in Brooklyn, IL
Brooklyn, Thursday, 8 October, 20:39
Clear. Feels like 70°. High 85°, low 53°.
Monthly outlook for Brooklyn, IL: average high 75.4°, average low 57.7°. That is 4.2° above the climate normal for October. Precipitation is expected on 4 days (about 1.8 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 15 October (94.3°), the coolest 18 October (42.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 October – 17 October | 82.4° | 69.2° | +7.3° |
| 18 October – 27 October | 63.9° | 64.7° | -0.5° |
| 28 October – 6 November | at normal | 60.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — St. Louis (4 mi).
0
Brooklyn, Friday, 9 October
Clear. High 88°, low 55°.
0
Brooklyn, Saturday, 10 October
Overcast. High 81°, low 56°.
0Brooklyn, Sunday, 11 October
Clear. High 82°, low 60°.
0Brooklyn, Monday, 12 October
Overcast. High 93°, low 67°.
0.25
Brooklyn, Tuesday, 13 October
Rain. High 92°, low 73°.
0.37Brooklyn, Wednesday, 14 October
Rain. High 78°, low 69°.
0.07Brooklyn, Thursday, 15 October
Light rain. High 94°, low 73°.
1.12Brooklyn, Friday, 16 October
Heavy rain. High 73°, low 56°.
0Brooklyn, Saturday, 17 October
Overcast. High 57°, low 48°.
0Brooklyn, Sunday, 18 October
Overcast. High 60°, low 43°.
0Brooklyn, Monday, 19 October
Overcast. High 59°, low 47°.
0.02Brooklyn, Tuesday, 20 October
Light rain. High 56°, low 54°.
0Brooklyn, Wednesday, 21 October
Light rain. High 70°, low 56°.
0.02Brooklyn, Thursday, 22 October
Light rain. High 74°, low 59°.
0Brooklyn, Friday, 23 October
Clear. High 66°, low 54°.
0.13
Brooklyn, Saturday, 24 October
Climate normal for this date — 60-year average.
0.12Brooklyn, Sunday, 25 October
Climate normal for this date — 60-year average.
0.15
Brooklyn, Monday, 26 October
Climate normal for this date — 60-year average.
0.09Brooklyn, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.06Brooklyn, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.13Brooklyn, Thursday, 29 October
Climate normal for this date — 60-year average.
0.12Brooklyn, Friday, 30 October
Climate normal for this date — 60-year average.
0.14Brooklyn, Saturday, 31 October
Climate normal for this date — 60-year average.
0.19Brooklyn, Sunday, 1 November
Climate normal for this date — 60-year average.
0.09Brooklyn, Monday, 2 November
Climate normal for this date — 60-year average.
0.12Brooklyn, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.15Brooklyn, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Brooklyn, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Brooklyn, Friday, 6 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 Brooklyn, IL 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 Brooklyn, IL 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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