Weather in Brereton, IL
Brereton, Saturday, 14 November, 20:40
Clear. Feels like 34°. High 46°, low 27°.
Monthly outlook for Brereton, IL: average high 50.5°, average low 34.5°. That is 2.1° above the climate normal for November. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 20 November (65°), the coolest 24 November (23.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 54.4° | 48.3° | +3.4° |
| 24 November – 3 December | 43.9° | 42.8° | +0.6° |
| 4 December – 13 December | at normal | 38° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Trivoli (9 mi).
0
Brereton, Sunday, 15 November
Clear. High 50°, low 27°.
0Brereton, Monday, 16 November
Clear. High 53°, low 31°.
0Brereton, Tuesday, 17 November
Clear. High 55°, low 35°.
0
Brereton, Wednesday, 18 November
Overcast. High 57°, low 40°.
0Brereton, Thursday, 19 November
Overcast. High 62°, low 49°.
0Brereton, Friday, 20 November
Overcast. High 65°, low 46°.
0.06
Brereton, Saturday, 21 November
Light rain. High 64°, low 50°.
0.05Brereton, Sunday, 22 November
Light rain. High 54°, low 32°.
0Brereton, Monday, 23 November
Clear. High 37°, low 25°.
0
Brereton, Tuesday, 24 November
Mostly clear. High 39°, low 23°.
0Brereton, Wednesday, 25 November
Overcast. High 40°, low 25°.
0Brereton, Thursday, 26 November
Overcast. High 49°, low 30°.
0.59Brereton, Friday, 27 November
Rain. High 53°, low 41°.
0.11Brereton, Saturday, 28 November
Light rain. High 45°, low 36°.
0Brereton, Sunday, 29 November
Overcast. High 39°, low 36°.
0.09
Brereton, Monday, 30 November
Climate normal for this date — 60-year average.
0.13
Brereton, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.06Brereton, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Brereton, Thursday, 3 December
Climate normal for this date — 60-year average.
0.07Brereton, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Brereton, Saturday, 5 December
Climate normal for this date — 60-year average.
0.07Brereton, Sunday, 6 December
Climate normal for this date — 60-year average.
0.1Brereton, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Brereton, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Brereton, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.09Brereton, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Brereton, Friday, 11 December
Climate normal for this date — 60-year average.
0.06Brereton, Saturday, 12 December
Climate normal for this date — 60-year average.
0.08Brereton, Sunday, 13 December
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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