Weather in Brooklyn, IL
Brooklyn, Saturday, 8 August, 20:46
Clear. Feels like 91°. High 90°, low 70°.
Monthly outlook for Brooklyn, IL: average high 87.8°, average low 69.8°. That is 0.8° above the climate normal for August. Precipitation is expected on 7 days (about 1.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 11 August (104.6°), the coolest 21 August (59.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 8 August – 17 August | 89° | 86.4° | +1.5° |
| 18 August – 27 August | 85.9° | 86.5° | -0.4° |
| 28 August – 6 September | at normal | 84.4° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — St. Louis (4 mi).
0
Brooklyn, Sunday, 9 August
Overcast. High 96°, low 73°.
0.01
Brooklyn, Monday, 10 August
Light rain. High 102°, low 78°.
0.07Brooklyn, Tuesday, 11 August
Light rain. High 105°, low 76°.
0.07Brooklyn, Wednesday, 12 August
Light rain. High 90°, low 74°.
0.84Brooklyn, Thursday, 13 August
Rain. High 81°, low 71°.
0.37Brooklyn, Friday, 14 August
Rain. High 76°, low 70°.
0.17Brooklyn, Saturday, 15 August
Light rain. High 79°, low 68°.
0.01Brooklyn, Sunday, 16 August
Light rain. High 84°, low 67°.
0.03Brooklyn, Monday, 17 August
Light rain. High 86°, low 70°.
0.02Brooklyn, Tuesday, 18 August
Light rain. High 82°, low 71°.
0Brooklyn, Wednesday, 19 August
Overcast. High 89°, low 71°.
0
Brooklyn, Thursday, 20 August
Mostly clear. High 78°, low 62°.
0.09Brooklyn, Friday, 21 August
Light rain. High 78°, low 60°.
0.13Brooklyn, Saturday, 22 August
Light rain. High 93°, low 64°.
0.02Brooklyn, Sunday, 23 August
Light rain. High 97°, low 73°.
0.09
Brooklyn, Monday, 24 August
Climate normal for this date — 60-year average.
0.06Brooklyn, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13Brooklyn, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.12Brooklyn, Thursday, 27 August
Climate normal for this date — 60-year average.
0.08Brooklyn, Friday, 28 August
Climate normal for this date — 60-year average.
0.07Brooklyn, Saturday, 29 August
Climate normal for this date — 60-year average.
0.11Brooklyn, Sunday, 30 August
Climate normal for this date — 60-year average.
0.11Brooklyn, Monday, 31 August
Climate normal for this date — 60-year average.
0.11
Brooklyn, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.12Brooklyn, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.1Brooklyn, Thursday, 3 September
Climate normal for this date — 60-year average.
0.13Brooklyn, Friday, 4 September
Climate normal for this date — 60-year average.
0.05Brooklyn, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Brooklyn, Sunday, 6 September
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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