Weather in Williamsville, IL
Williamsville, Monday, 26 October, 03:43
Clear. Feels like 51°. High 76°, low 52°.
Monthly outlook for Williamsville, IL: average high 64.6°, average low 49°. That is 4.1° above the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 26 October (76.5°), the coolest 6 November (35.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 68.9° | 58.6° | +5.7° |
| 5 November – 14 November | 57.4° | 53.4° | +2.2° |
| 15 November – 24 November | at normal | 49.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Broadwell (10 mi).
0
Williamsville, Tuesday, 27 October
Overcast. High 74°, low 51°.
0.02
Williamsville, Wednesday, 28 October
Light rain. High 72°, low 55°.
0
Williamsville, Thursday, 29 October
Mostly clear. High 76°, low 58°.
0.22Williamsville, Friday, 30 October
Light rain. High 72°, low 58°.
0Williamsville, Saturday, 31 October
Overcast. High 68°, low 57°.
0.04Williamsville, Sunday, 1 November
Light rain. High 68°, low 55°.
0.09Williamsville, Monday, 2 November
Light rain. High 60°, low 55°.
0Williamsville, Tuesday, 3 November
Mostly clear. High 66°, low 48°.
0Williamsville, Wednesday, 4 November
Overcast. High 58°, low 46°.
0Williamsville, Thursday, 5 November
Overcast. High 52°, low 38°.
0Williamsville, Friday, 6 November
Mostly clear. High 56°, low 36°.
0.34Williamsville, Saturday, 7 November
Rain. High 59°, low 47°.
0.09Williamsville, Sunday, 8 November
Light rain. High 59°, low 43°.
0
Williamsville, Monday, 9 November
Clear. High 54°, low 36°.
0Williamsville, Tuesday, 10 November
Overcast. High 64°, low 51°.
0.08
Williamsville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Williamsville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Williamsville, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Williamsville, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Williamsville, Sunday, 15 November
Climate normal for this date — 60-year average.
0.08Williamsville, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Williamsville, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.18Williamsville, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Williamsville, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11
Williamsville, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Williamsville, Saturday, 21 November
Climate normal for this date — 60-year average.
0.07Williamsville, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Williamsville, Monday, 23 November
Climate normal for this date — 60-year average.
0.11Williamsville, Tuesday, 24 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 Williamsville, 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 Williamsville, 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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