Weather in Carrollton, IL
Carrollton, Wednesday, 21 October, 04:44
Clear. Feels like 48°. High 75°, low 47°.
Monthly outlook for Carrollton, IL: average high 66.3°, average low 51.3°. That is 3.2° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 22 October (76.1°), the coolest 30 October (39.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 68° | 62° | +3.4° |
| 31 October – 9 November | 63.3° | 57.5° | +3.2° |
| 10 November – 19 November | at normal | 52.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jerseyville (13 mi).
0
Carrollton, Thursday, 22 October
Clear. High 76°, low 49°.
0Carrollton, Friday, 23 October
Clear. High 72°, low 51°.
0
Carrollton, Saturday, 24 October
Overcast. High 70°, low 51°.
0Carrollton, Sunday, 25 October
Overcast. High 75°, low 52°.
0Carrollton, Monday, 26 October
Overcast. High 73°, low 53°.
0.05
Carrollton, Tuesday, 27 October
Light rain. High 60°, low 55°.
0.01Carrollton, Wednesday, 28 October
Light rain. High 67°, low 55°.
0.01Carrollton, Thursday, 29 October
Light rain. High 54°, low 43°.
0Carrollton, Friday, 30 October
Overcast. High 58°, low 40°.
0.07Carrollton, Saturday, 31 October
Light rain. High 56°, low 44°.
0.79Carrollton, Sunday, 1 November
Rain. High 57°, low 48°.
0.03Carrollton, Monday, 2 November
Light rain. High 61°, low 56°.
0.11Carrollton, Tuesday, 3 November
Light rain. High 66°, low 52°.
1.34Carrollton, Wednesday, 4 November
Heavy rain. High 68°, low 64°.
0.01Carrollton, Thursday, 5 November
Light rain. High 71°, low 60°.
0.09
Carrollton, Friday, 6 November
Climate normal for this date — 60-year average.
0.07
Carrollton, 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.
0.16
Carrollton, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Carrollton, Thursday, 19 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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