Weather in Big Rock, IL
Big Rock, Thursday, 29 October, 22:50
Clear. Feels like 45°. High 69°, low 48°.
Monthly outlook for Big Rock, IL: average high 57°, average low 47.3°. That is 2.6° above the climate normal for October. Precipitation is expected on 5 days (about 2.4 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 3 November (69.5°), the coolest 11 November (34.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 29 October – 7 November | 63.1° | 54.2° | +4.9° |
| 8 November – 17 November | 46.9° | 48.6° | -0.9° |
| 18 November – 27 November | at normal | 44.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Boulder Hill (11 mi).
0.01
Big Rock, Friday, 30 October
Light rain. High 63°, low 48°.
0.59Big Rock, Saturday, 31 October
Heavy rain. High 64°, low 53°.
0
Big Rock, Sunday, 1 November
Overcast. High 65°, low 50°.
0Big Rock, Monday, 2 November
Overcast. High 63°, low 53°.
0.34Big Rock, Tuesday, 3 November
Rain. High 69°, low 59°.
0.71Big Rock, Wednesday, 4 November
Rain. High 63°, low 60°.
0.01Big Rock, Thursday, 5 November
Light rain. High 60°, low 51°.
0Big Rock, Friday, 6 November
Overcast. High 57°, low 46°.
0
Big Rock, Saturday, 7 November
Mostly clear. High 56°, low 43°.
0Big Rock, Sunday, 8 November
Overcast. High 50°, low 44°.
0.43Big Rock, Monday, 9 November
Rain. High 47°, low 44°.
0.01Big Rock, Tuesday, 10 November
Light rain. High 46°, low 40°.
0
Big Rock, Wednesday, 11 November
Partly cloudy. High 45°, low 34°.
0.26Big Rock, Thursday, 12 November
Light rain. High 42°, low 40°.
0.01Big Rock, Friday, 13 November
Light rain. High 52°, low 43°.
0.07Big Rock, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Big Rock, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Big Rock, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Big Rock, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.13Big Rock, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Big Rock, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Big Rock, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Big Rock, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Big Rock, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Big Rock, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Big Rock, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08
Big Rock, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11Big Rock, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Big Rock, Friday, 27 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 Big Rock, 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 Big Rock, 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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