Weather in Brereton, IL
Brereton, Saturday, 24 October, 03:21
Partly cloudy. Feels like 51°. High 73°, low 51°.
Monthly outlook for Brereton, IL: average high 67.3°, average low 50.4°. That is 6.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 29 October (75.8°), the coolest 4 November (41.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 69.5° | 57.6° | +6.6° |
| 3 November – 12 November | 63.7° | 52.4° | +6.3° |
| 13 November – 22 November | at normal | 48.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Trivoli (9 mi).
0
Brereton, Sunday, 25 October
Overcast. High 75°, low 48°.
0Brereton, Monday, 26 October
Overcast. High 73°, low 54°.
0Brereton, Tuesday, 27 October
Overcast. High 70°, low 53°.
0
Brereton, Wednesday, 28 October
Mostly clear. High 74°, low 55°.
0Brereton, Thursday, 29 October
Mostly clear. High 76°, low 56°.
0.02
Brereton, Friday, 30 October
Light rain. High 71°, low 64°.
0.2Brereton, Saturday, 31 October
Rain. High 63°, low 57°.
0.04Brereton, Sunday, 1 November
Light rain. High 64°, low 48°.
0
Brereton, Monday, 2 November
Clear. High 57°, low 42°.
0Brereton, Tuesday, 3 November
Overcast. High 53°, low 42°.
0Brereton, Wednesday, 4 November
Overcast. High 58°, low 42°.
0
Brereton, Thursday, 5 November
Partly cloudy. High 67°, low 44°.
0Brereton, Friday, 6 November
Partly cloudy. High 74°, low 54°.
0Brereton, Saturday, 7 November
Partly cloudy. High 67°, low 52°.
0Brereton, Sunday, 8 November
Overcast. High 64°, low 46°.
0.14
Brereton, Monday, 9 November
Climate normal for this date — 60-year average.
0.15Brereton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Brereton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Brereton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Brereton, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Brereton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Brereton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.06Brereton, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Brereton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.13Brereton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06Brereton, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Brereton, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Brereton, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Brereton, Sunday, 22 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 Brereton, 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 Brereton, 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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