Weather in Rock Grove, IL
Rock Grove, Friday, 30 October, 10:47
Clear. Feels like 45°. High 57°, low 42°.
Monthly outlook for Rock Grove, IL: average high 53.6°, average low 43.6°. That is 2.8° above the climate normal for October. Precipitation is expected on 6 days (about 3.5 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 31 October (67.2°), the coolest 11 November (31.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 57.8° | 50.7° | +3.9° |
| 9 November – 18 November | 46.7° | 44.9° | +1° |
| 19 November – 28 November | at normal | 40.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Monroe (12 mi).
0.95
Rock Grove, Saturday, 31 October
Heavy rain. High 67°, low 51°.
0
Rock Grove, Sunday, 1 November
Overcast. High 65°, low 51°.
0.02Rock Grove, Monday, 2 November
Light rain. High 62°, low 51°.
0.58Rock Grove, Tuesday, 3 November
Rain. High 65°, low 60°.
0.5Rock Grove, Wednesday, 4 November
Rain. High 62°, low 55°.
0.29Rock Grove, Thursday, 5 November
Rain. High 56°, low 50°.
0Rock Grove, Friday, 6 November
Overcast. High 50°, low 45°.
0
Rock Grove, Saturday, 7 November
Partly cloudy. High 47°, low 36°.
0Rock Grove, Sunday, 8 November
Overcast. High 46°, low 32°.
0.04Rock Grove, Monday, 9 November
Light rain. High 45°, low 39°.
0.02Rock Grove, Tuesday, 10 November
Light rain. High 47°, low 39°.
0Rock Grove, Wednesday, 11 November
Clear. High 46°, low 32°.
0Rock Grove, Thursday, 12 November
Clear. High 49°, low 33°.
0.37Rock Grove, Friday, 13 November
Rain. High 44°, low 37°.
0.72Rock Grove, Saturday, 14 November
Rain. High 49°, low 46°.
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.
0.07Rock Grove, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.06Rock Grove, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11Rock Grove, Thursday, 26 November
Climate normal for this date — 60-year average.
0.15Rock Grove, Friday, 27 November
Climate normal for this date — 60-year average.
0.1Rock Grove, Saturday, 28 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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