Weather in Illiana, IL
Illiana, Wednesday, 28 October, 03:07
Clear. Feels like 51°. High 74°, low 49°.
Monthly outlook for Illiana, IL: average high 59.6°, average low 45.3°. That is 2.3° above the climate normal for October. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 29 October (75.4°), the coolest 12 November (33.4°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 64.9° | 57.2° | +4.3° |
| 7 November – 16 November | 50.9° | 51.4° | -0.3° |
| 17 November – 26 November | at normal | 48.1° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Pence (12 mi).
0.04
Illiana, Thursday, 29 October
Light rain. High 75°, low 50°.
0
Illiana, Friday, 30 October
Partly cloudy. High 68°, low 50°.
0.78Illiana, Saturday, 31 October
Rain. High 67°, low 52°.
0Illiana, Sunday, 1 November
Partly cloudy. High 72°, low 49°.
0.01Illiana, Monday, 2 November
Light rain. High 66°, low 55°.
0.84Illiana, Tuesday, 3 November
Rain. High 60°, low 48°.
0.06Illiana, Wednesday, 4 November
Light rain. High 55°, low 47°.
0.01Illiana, Thursday, 5 November
Light rain. High 55°, low 45°.
0.04Illiana, Friday, 6 November
Light rain. High 56°, low 45°.
0.24Illiana, Saturday, 7 November
Rain. High 51°, low 41°.
0
Illiana, Sunday, 8 November
Overcast. High 47°, low 38°.
0
Illiana, Monday, 9 November
Mostly clear. High 53°, low 35°.
0Illiana, Tuesday, 10 November
Overcast. High 58°, low 46°.
0.1Illiana, Wednesday, 11 November
Light rain. High 55°, low 41°.
0Illiana, Thursday, 12 November
Partly cloudy. High 40°, low 33°.
0.07Illiana, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Illiana, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13
Illiana, Sunday, 15 November
Climate normal for this date — 60-year average.
0.09Illiana, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Illiana, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.14Illiana, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Illiana, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Illiana, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Illiana, Saturday, 21 November
Climate normal for this date — 60-year average.
0.08Illiana, Sunday, 22 November
Climate normal for this date — 60-year average.
0.11Illiana, Monday, 23 November
Climate normal for this date — 60-year average.
0.1Illiana, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.16Illiana, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.13Illiana, 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 Illiana, 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 Illiana, 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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