Weather in Rock Grove, IL
Rock Grove, Sunday, 25 October, 12:16
Clear. Feels like 69°. High 70°, low 52°.
Monthly outlook for Rock Grove, IL: average high 59.9°, average low 48.1°. That is 4.7° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 25 October (70.2°), the coolest 9 November (38.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 65.1° | 53° | +6.7° |
| 4 November – 13 November | 51.2° | 47.2° | +2.2° |
| 14 November – 23 November | at normal | 43.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Monroe (12 mi).
0
Rock Grove, Monday, 26 October
Overcast. High 66°, low 50°.
0Rock Grove, Tuesday, 27 October
Overcast. High 66°, low 47°.
0Rock Grove, Wednesday, 28 October
Clear. High 69°, low 55°.
0.09
Rock Grove, Thursday, 29 October
Light rain. High 65°, low 55°.
0Rock Grove, Friday, 30 October
Overcast. High 64°, low 44°.
0.28Rock Grove, Saturday, 31 October
Light rain. High 65°, low 54°.
0.33Rock Grove, Sunday, 1 November
Light rain. High 59°, low 54°.
0.09Rock Grove, Monday, 2 November
Light rain. High 64°, low 52°.
0.03Rock Grove, Tuesday, 3 November
Light rain. High 64°, low 51°.
0Rock Grove, Wednesday, 4 November
Overcast. High 50°, low 45°.
0Rock Grove, Thursday, 5 November
Overcast. High 51°, low 44°.
0Rock Grove, Friday, 6 November
Clear. High 51°, low 40°.
0
Rock Grove, Saturday, 7 November
Partly cloudy. High 56°, low 40°.
0.27Rock Grove, Sunday, 8 November
Light rain. High 52°, low 47°.
0.03Rock Grove, Monday, 9 November
Light rain. High 47°, low 39°.
0.09Rock Grove, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.07Rock Grove, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Rock Grove, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Rock Grove, Friday, 13 November
Climate normal for this date — 60-year average.
0.05Rock Grove, Saturday, 14 November
Climate normal for this date — 60-year average.
0.06Rock Grove, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Rock Grove, Monday, 16 November
Climate normal for this date — 60-year average.
0.1
Rock Grove, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Rock Grove, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.05Rock Grove, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08
Rock Grove, Friday, 20 November
Climate normal for this date — 60-year average.
0.09Rock Grove, Saturday, 21 November
Climate normal for this date — 60-year average.
0.03Rock Grove, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Rock Grove, Monday, 23 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 Rock Grove, 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 Grove, 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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