Weather in Bannockburn, IL
Bannockburn, Wednesday, 28 October, 19:26
Mostly clear. Feels like 66°. High 75°, low 52°.
Monthly outlook for Bannockburn, IL: average high 55°, average low 45.4°. That is 2.3° above the climate normal for October. Precipitation is expected on 8 days (about 2.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (75.1°), the coolest 12 November (31.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 60.9° | 52.4° | +4.7° |
| 7 November – 16 November | 45.2° | 47.2° | -1.1° |
| 17 November – 26 November | at normal | 43.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Highwood (3 mi).
0.1
Bannockburn, Thursday, 29 October
Rain. High 66°, low 52°.
0.02Bannockburn, Friday, 30 October
Light rain. High 59°, low 46°.
0
Bannockburn, Saturday, 31 October
Overcast. High 62°, low 53°.
0Bannockburn, Sunday, 1 November
Overcast. High 64°, low 50°.
0.05Bannockburn, Monday, 2 November
Light rain. High 65°, low 52°.
0.47Bannockburn, Tuesday, 3 November
Light rain. High 59°, low 57°.
0.59Bannockburn, Wednesday, 4 November
Rain. High 56°, low 55°.
0.49Bannockburn, Thursday, 5 November
Rain. High 57°, low 49°.
0
Bannockburn, Friday, 6 November
Clear. High 46°, low 38°.
0Bannockburn, Saturday, 7 November
Clear. High 47°, low 35°.
0.28Bannockburn, Sunday, 8 November
Rain. High 45°, low 40°.
0.33Bannockburn, Monday, 9 November
Light rain. High 49°, low 44°.
0.07Bannockburn, Tuesday, 10 November
Light rain. High 47°, low 40°.
0
Bannockburn, Wednesday, 11 November
Mostly clear. High 41°, low 32°.
0Bannockburn, Thursday, 12 November
Overcast. High 43°, low 31°.
0.05
Bannockburn, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Bannockburn, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Bannockburn, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Bannockburn, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Bannockburn, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.11Bannockburn, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Bannockburn, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Bannockburn, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Bannockburn, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Bannockburn, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Bannockburn, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Bannockburn, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09
Bannockburn, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Bannockburn, Thursday, 26 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 Bannockburn, 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 Bannockburn, 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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