Weather in Rock Grove, IL
Rock Grove, Thursday, 12 November, 03:16
Overcast. Feels like 34°. High 44°, low 39°.
Monthly outlook for Rock Grove, IL: average high 45.6°, average low 33.2°. That is 1.7° above the climate normal for November. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 20 November (59.7°), the coolest 26 November (17.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 49.7° | 43.8° | +3.3° |
| 22 November – 1 December | 38.7° | 38.9° | -0.1° |
| 2 December – 11 December | at normal | 33.7° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Monroe (12 mi).
0Rock Grove, Friday, 13 November
Overcast. High 41°, low 30°.
0
Rock Grove, Saturday, 14 November
Clear. High 42°, low 27°.
0
Rock Grove, Sunday, 15 November
Partly cloudy. High 44°, low 27°.
0Rock Grove, Monday, 16 November
Clear. High 47°, low 29°.
0Rock Grove, Tuesday, 17 November
Clear. High 50°, low 31°.
0
Rock Grove, Wednesday, 18 November
Mostly clear. High 54°, low 39°.
0Rock Grove, Thursday, 19 November
Overcast. High 58°, low 50°.
0Rock Grove, Friday, 20 November
Mostly clear. High 60°, low 48°.
0Rock Grove, Saturday, 21 November
Overcast. High 56°, low 46°.
0.21
Rock Grove, Sunday, 22 November
Light rain. High 58°, low 42°.
0Rock Grove, Monday, 23 November
Partly cloudy. High 44°, low 32°.
0Rock Grove, Tuesday, 24 November
Overcast. High 42°, low 30°.
0Rock Grove, Wednesday, 25 November
Mostly clear. High 29°, low 21°.
0Rock Grove, Thursday, 26 November
Mostly clear. High 28°, low 17°.
0.06
Rock Grove, Friday, 27 November
Light snow. High 32°, low 23°.
0.1Rock Grove, Saturday, 28 November
Climate normal for this date — 60-year average.
0.06
Rock Grove, Sunday, 29 November
Climate normal for this date — 60-year average.
0.06Rock Grove, Monday, 30 November
Climate normal for this date — 60-year average.
0.1Rock Grove, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.05Rock Grove, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.09Rock Grove, Thursday, 3 December
Climate normal for this date — 60-year average.
0.06Rock Grove, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Rock Grove, Saturday, 5 December
Climate normal for this date — 60-year average.
0.04Rock Grove, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Rock Grove, Monday, 7 December
Climate normal for this date — 60-year average.
0.06Rock Grove, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.08Rock Grove, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.07Rock Grove, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Rock Grove, Friday, 11 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 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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