Weather in Carrollton, IL
Carrollton, Tuesday, 20 October, 06:59
Clear. Feels like 44°. High 73°, low 45°.
Monthly outlook for Carrollton, IL: average high 63.6°, average low 44.4°. That is 1.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 4 days and 1.8 inches. The warmest day looks like 25 October (75.5°), the coolest 28 October (28.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 66.9° | 62.3° | +2.6° |
| 30 October – 8 November | 58° | 57.9° | +0° |
| 9 November – 18 November | at normal | 53.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jerseyville (13 mi).
0
Carrollton, Wednesday, 21 October
Clear. High 75°, low 46°.
0Carrollton, Thursday, 22 October
Clear. High 73°, low 49°.
0Carrollton, Friday, 23 October
Clear. High 71°, low 51°.
0Carrollton, Saturday, 24 October
Clear. High 73°, low 52°.
0
Carrollton, Sunday, 25 October
Overcast. High 75°, low 54°.
0Carrollton, Monday, 26 October
Overcast. High 74°, low 56°.
0.01
Carrollton, Tuesday, 27 October
Light rain. High 55°, low 42°.
0Carrollton, Wednesday, 28 October
Clear. High 46°, low 28°.
0.07Carrollton, Thursday, 29 October
Light rain. High 54°, low 30°.
0.03Carrollton, Friday, 30 October
Light rain. High 54°, low 42°.
0
Carrollton, Saturday, 31 October
Mostly clear. High 62°, low 45°.
0.36Carrollton, Sunday, 1 November
Rain. High 55°, low 45°.
0.15Carrollton, Monday, 2 November
Light rain. High 58°, low 46°.
0Carrollton, Tuesday, 3 November
Overcast. High 56°, low 39°.
0Carrollton, Wednesday, 4 November
Overcast. High 62°, low 41°.
0.16
Carrollton, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09
Carrollton, Friday, 6 November
Climate normal for this date — 60-year average.
0.07Carrollton, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Carrollton, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Carrollton, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Carrollton, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Carrollton, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Carrollton, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Carrollton, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Carrollton, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Carrollton, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1Carrollton, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Carrollton, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.16Carrollton, Wednesday, 18 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 Carrollton, 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 Carrollton, 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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