Weather in Rock Grove, IL
Rock Grove, Friday, 23 October, 09:59
Clear. Feels like 58°. High 71°, low 48°.
Monthly outlook for Rock Grove, IL: average high 61.9°, average low 49.3°. That is 5.3° above the climate normal for October. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (70.9°), the coolest 30 October (37.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 61.4° | 54° | +4.1° |
| 2 November – 11 November | 62.7° | 48.7° | +7.8° |
| 12 November – 21 November | at normal | 43.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Monroe (12 mi).
0.04
Rock Grove, Saturday, 24 October
Light rain. High 69°, low 47°.
0
Rock Grove, Sunday, 25 October
Partly cloudy. High 70°, low 50°.
0
Rock Grove, Monday, 26 October
Overcast. High 57°, low 51°.
0.02Rock Grove, Tuesday, 27 October
Light rain. High 59°, low 49°.
0.07Rock Grove, Wednesday, 28 October
Light rain. High 68°, low 53°.
0.08Rock Grove, Thursday, 29 October
Light rain. High 60°, low 45°.
0Rock Grove, Friday, 30 October
Overcast. High 49°, low 37°.
0.17Rock Grove, Saturday, 31 October
Light rain. High 51°, low 44°.
0Rock Grove, Sunday, 1 November
Overcast. High 60°, low 51°.
0.06Rock Grove, Monday, 2 November
Light rain. High 61°, low 52°.
0.3Rock Grove, Tuesday, 3 November
Rain. High 58°, low 55°.
0.04Rock Grove, Wednesday, 4 November
Light rain. High 65°, low 55°.
0.25Rock Grove, Thursday, 5 November
Rain. High 64°, low 53°.
0.01Rock Grove, Friday, 6 November
Light rain. High 62°, low 48°.
0Rock Grove, Saturday, 7 November
Clear. High 66°, low 49°.
0.05
Rock 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.
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.
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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