Weather in Illiana, IL
Illiana, Saturday, 14 November, 06:07
Partly cloudy. Feels like 23°. High 48°, low 30°.
Monthly outlook for Illiana, IL: average high 50°, average low 34.2°. That is 1.3° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 21 November (63°), the coolest 27 November (26.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 14 November – 23 November | 53.6° | 49.1° | +2.5° |
| 24 November – 3 December | 44.1° | 44.5° | -0.2° |
| 4 December – 13 December | at normal | 39.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Pence (12 mi).
0
Illiana, Sunday, 15 November
Clear. High 49°, low 30°.
0Illiana, Monday, 16 November
Clear. High 52°, low 31°.
0Illiana, Tuesday, 17 November
Clear. High 53°, low 32°.
0
Illiana, Wednesday, 18 November
Overcast. High 57°, low 37°.
0Illiana, Thursday, 19 November
Clear. High 59°, low 42°.
0
Illiana, Friday, 20 November
Partly cloudy. High 58°, low 40°.
0.02
Illiana, Saturday, 21 November
Light rain. High 63°, low 42°.
0.02Illiana, Sunday, 22 November
Light rain. High 56°, low 41°.
0Illiana, Monday, 23 November
Partly cloudy. High 42°, low 33°.
0Illiana, Tuesday, 24 November
Clear. High 45°, low 28°.
0.13Illiana, Wednesday, 25 November
Light rain. High 52°, low 34°.
0.01Illiana, Thursday, 26 November
Light rain. High 42°, low 28°.
0Illiana, Friday, 27 November
Overcast. High 43°, low 26°.
0.01
Illiana, Saturday, 28 November
Snow. High 39°, low 34°.
0Illiana, Sunday, 29 November
Overcast. High 44°, low 37°.
0.15Illiana, Monday, 30 November
Climate normal for this date — 60-year average.
0.12
Illiana, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.08Illiana, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Illiana, Thursday, 3 December
Climate normal for this date — 60-year average.
0.09Illiana, Friday, 4 December
Climate normal for this date — 60-year average.
0.09Illiana, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06Illiana, Sunday, 6 December
Climate normal for this date — 60-year average.
0.11Illiana, Monday, 7 December
Climate normal for this date — 60-year average.
0.07Illiana, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Illiana, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Illiana, Thursday, 10 December
Climate normal for this date — 60-year average.
0.1Illiana, Friday, 11 December
Climate normal for this date — 60-year average.
0.09Illiana, Saturday, 12 December
Climate normal for this date — 60-year average.
0.06Illiana, Sunday, 13 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 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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