Weather in Thornton, IL
Thornton, Tuesday, 27 October, 17:41
Overcast. Feels like 67°. High 68°, low 51°.
Monthly outlook for Thornton, IL: average high 59.6°, average low 50°. That is 3.4° above the climate normal for October. Precipitation is expected on 6 days (about 2.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 28 October (73.6°), the coolest 9 November (40.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 64° | 55° | +5° |
| 6 November – 15 November | 52.3° | 49.6° | +1.5° |
| 16 November – 25 November | at normal | 45.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Calumet Park (7 mi).
0
Thornton, Wednesday, 28 October
Clear. High 74°, low 56°.
0.03
Thornton, Thursday, 29 October
Light rain. High 67°, low 52°.
0Thornton, Friday, 30 October
Overcast. High 65°, low 46°.
1.28Thornton, Saturday, 31 October
Heavy rain. High 56°, low 51°.
0Thornton, Sunday, 1 November
Overcast. High 65°, low 54°.
0.09Thornton, Monday, 2 November
Light rain. High 61°, low 52°.
0.4Thornton, Tuesday, 3 November
Rain. High 63°, low 59°.
0.39Thornton, Wednesday, 4 November
Light rain. High 63°, low 59°.
0.01Thornton, Thursday, 5 November
Light rain. High 57°, low 52°.
0.08Thornton, Friday, 6 November
Light rain. High 55°, low 52°.
0.05Thornton, Saturday, 7 November
Light rain. High 51°, low 47°.
0Thornton, Sunday, 8 November
Clear. High 50°, low 42°.
0Thornton, Monday, 9 November
Clear. High 51°, low 41°.
0Thornton, Tuesday, 10 November
Overcast. High 52°, low 43°.
0Thornton, Wednesday, 11 November
Overcast. High 54°, low 44°.
0.06
Thornton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Thornton, Friday, 13 November
Climate normal for this date — 60-year average.
0.07
Thornton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Thornton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Thornton, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Thornton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Thornton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Thornton, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Thornton, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Thornton, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05
Thornton, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Thornton, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Thornton, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08Thornton, Wednesday, 25 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 Thornton, 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 Thornton, 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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