Weather in Williamsville, IL
Williamsville, Sunday, 25 October, 03:07
Clear. Feels like 48°. High 76°, low 48°.
Monthly outlook for Williamsville, IL: average high 69.9°, average low 54.1°. That is 6.8° above the climate normal for October. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 31 October (79.1°), the coolest 9 November (42°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 74.1° | 59.1° | +8.3° |
| 4 November – 13 November | 62.8° | 53.8° | +5° |
| 14 November – 23 November | at normal | 50.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Broadwell (10 mi).
0
Williamsville, Monday, 26 October
Overcast. High 75°, low 52°.
0Williamsville, Tuesday, 27 October
Overcast. High 72°, low 54°.
0.04
Williamsville, Wednesday, 28 October
Light rain. High 76°, low 55°.
0
Williamsville, Thursday, 29 October
Partly cloudy. High 77°, low 59°.
0Williamsville, Friday, 30 October
Overcast. High 78°, low 59°.
0.09Williamsville, Saturday, 31 October
Light rain. High 79°, low 64°.
0.08Williamsville, Sunday, 1 November
Light rain. High 76°, low 66°.
0Williamsville, Monday, 2 November
Overcast. High 72°, low 58°.
0.65Williamsville, Tuesday, 3 November
Rain. High 59°, low 52°.
1.44Williamsville, Wednesday, 4 November
Heavy rain. High 59°, low 53°.
0Williamsville, Thursday, 5 November
Overcast. High 60°, low 49°.
0Williamsville, Friday, 6 November
Partly cloudy. High 68°, low 46°.
0Williamsville, Saturday, 7 November
Overcast. High 76°, low 60°.
0Williamsville, Sunday, 8 November
Overcast. High 63°, low 49°.
0
Williamsville, Monday, 9 November
Clear. High 52°, low 42°.
0.16Williamsville, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Williamsville, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Williamsville, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07
Williamsville, 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.
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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