Weather in Rock City, IL
Rock City, Friday, 13 November, 09:16
Clear. Feels like 27°. High 41°, low 33°.
Monthly outlook for Rock City, IL: average high 42.3°, average low 28.7°. That is 0.6° below the climate normal for November. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 21 November (61.1°), the coolest 28 November (15.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 13 November – 22 November | 50.2° | 45° | +2.9° |
| 23 November – 2 December | 29.1° | 39.7° | -5.9° |
| 3 December – 12 December | at normal | 34.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Freeport (12 mi).
0Rock City, Saturday, 14 November
Clear. High 45°, low 30°.
0Rock City, Sunday, 15 November
Clear. High 46°, low 28°.
0
Rock City, Monday, 16 November
Mostly clear. High 48°, low 30°.
0
Rock City, Tuesday, 17 November
Partly cloudy. High 52°, low 33°.
0
Rock City, Wednesday, 18 November
Overcast. High 54°, low 36°.
0.06
Rock City, Thursday, 19 November
Light rain. High 56°, low 45°.
0Rock City, Friday, 20 November
Overcast. High 51°, low 39°.
0.25Rock City, Saturday, 21 November
Rain. High 61°, low 46°.
0Rock City, Sunday, 22 November
Partly cloudy. High 47°, low 29°.
0.02
Rock City, Monday, 23 November
Light snow. High 31°, low 25°.
0Rock City, Tuesday, 24 November
Partly cloudy. High 26°, low 17°.
0Rock City, Wednesday, 25 November
Partly cloudy. High 26°, low 17°.
0Rock City, Thursday, 26 November
Overcast. High 31°, low 18°.
0Rock City, Friday, 27 November
Overcast. High 29°, low 19°.
0Rock City, Saturday, 28 November
Overcast. High 31°, low 16°.
0.07
Rock City, Sunday, 29 November
Climate normal for this date — 60-year average.
0.06Rock City, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Rock City, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.05Rock City, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Rock City, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Rock City, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Rock City, Saturday, 5 December
Climate normal for this date — 60-year average.
0.05Rock City, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Rock City, Monday, 7 December
Climate normal for this date — 60-year average.
0.07Rock City, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Rock City, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Rock City, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Rock City, Friday, 11 December
Climate normal for this date — 60-year average.
0.05Rock City, Saturday, 12 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 Rock City, 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 Rock City, 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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