Weather in Rock Grove, IL
Rock Grove, Wednesday, 21 October, 10:46
Clear. Feels like 62°. High 70°, low 41°.
Monthly outlook for Rock Grove, IL: average high 61.5°, average low 47.9°. That is 4.5° above the climate normal for October. Precipitation is expected on 9 days (about 4.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 22 October (71.8°), the coolest 30 October (38.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 21 October – 30 October | 64.9° | 55° | +5.5° |
| 31 October – 9 November | 55.9° | 50° | +3.3° |
| 10 November – 19 November | at normal | 44.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Monroe (12 mi).
0Rock Grove, Thursday, 22 October
Clear. High 72°, low 46°.
0Rock Grove, Friday, 23 October
Clear. High 68°, low 49°.
0
Rock Grove, Saturday, 24 October
Overcast. High 66°, low 51°.
0Rock Grove, Sunday, 25 October
Overcast. High 69°, low 51°.
0Rock Grove, Monday, 26 October
Overcast. High 69°, low 52°.
0.05
Rock Grove, Tuesday, 27 October
Light rain. High 57°, low 48°.
0.16Rock Grove, Wednesday, 28 October
Light rain. High 65°, low 50°.
0.07Rock Grove, Thursday, 29 October
Light rain. High 59°, low 42°.
0Rock Grove, Friday, 30 October
Overcast. High 55°, low 38°.
1.32Rock Grove, Saturday, 31 October
Rain. High 59°, low 45°.
1.03Rock Grove, Sunday, 1 November
Rain. High 59°, low 56°.
0.44Rock Grove, Monday, 2 November
Rain. High 56°, low 49°.
0.75Rock Grove, Tuesday, 3 November
Rain. High 50°, low 49°.
0.52Rock Grove, Wednesday, 4 November
Rain. High 59°, low 52°.
0.18Rock Grove, Thursday, 5 November
Light rain. High 52°, low 47°.
0.07
Rock Grove, Friday, 6 November
Climate normal for this date — 60-year average.
0.03
Rock Grove, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Rock Grove, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11Rock Grove, Monday, 9 November
Climate normal for this date — 60-year average.
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.
0.1Rock 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.
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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