Weather in Brereton, IL
Brereton, Wednesday, 11 November, 15:57
Partly cloudy. Feels like 53°. High 58°, low 39°.
Monthly outlook for Brereton, IL: average high 48.7°, average low 32.6°. That is 0.5° above the climate normal for November. Precipitation is expected on 3 days (about 1.6 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 20 November (61.6°), the coolest 25 November (19.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 11 November – 20 November | 51.1° | 49° | +1.1° |
| 21 November – 30 November | 44.9° | 44.5° | +0.2° |
| 1 December – 10 December | at normal | 39.1° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Trivoli (9 mi).
0
Brereton, Thursday, 12 November
Overcast. High 47°, low 34°.
0Brereton, Friday, 13 November
Overcast. High 42°, low 33°.
0
Brereton, Saturday, 14 November
Clear. High 44°, low 27°.
0Brereton, Sunday, 15 November
Partly cloudy. High 47°, low 28°.
0Brereton, Monday, 16 November
Clear. High 51°, low 29°.
0Brereton, Tuesday, 17 November
Clear. High 51°, low 34°.
0Brereton, Wednesday, 18 November
Clear. High 55°, low 34°.
0Brereton, Thursday, 19 November
Overcast. High 55°, low 38°.
0.24
Brereton, Friday, 20 November
Rain. High 62°, low 43°.
0Brereton, Saturday, 21 November
Overcast. High 59°, low 48°.
1.08Brereton, Sunday, 22 November
Rain. High 51°, low 36°.
0Brereton, Monday, 23 November
Overcast. High 38°, low 27°.
0Brereton, Tuesday, 24 November
Clear. High 33°, low 21°.
0Brereton, Wednesday, 25 November
Clear. High 40°, low 20°.
0Brereton, Thursday, 26 November
Clear. High 49°, low 29°.
0.2
Brereton, Friday, 27 November
Climate normal for this date — 60-year average.
0.11Brereton, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Brereton, Sunday, 29 November
Climate normal for this date — 60-year average.
0.09Brereton, Monday, 30 November
Climate normal for this date — 60-year average.
0.13Brereton, 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.
0.07
Brereton, 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.
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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