Weather in Big Rock, IL
Big Rock, Sunday, 25 October, 09:16
Clear. Feels like 55°. High 71°, low 51°.
Monthly outlook for Big Rock, IL: average high 62.3°, average low 49.8°. That is 4.4° above the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 25 October (71.2°), the coolest 9 November (40.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 25 October – 3 November | 67° | 55.8° | +6.2° |
| 4 November – 13 November | 54.5° | 50.5° | +2.2° |
| 14 November – 23 November | at normal | 46.6° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Boulder Hill (11 mi).
0
Big Rock, Monday, 26 October
Overcast. High 68°, low 49°.
0.03
Big Rock, Tuesday, 27 October
Light rain. High 67°, low 49°.
0
Big Rock, Wednesday, 28 October
Partly cloudy. High 69°, low 51°.
0.02Big Rock, Thursday, 29 October
Light rain. High 70°, low 56°.
0.02Big Rock, Friday, 30 October
Light rain. High 66°, low 48°.
0.24Big Rock, Saturday, 31 October
Light rain. High 67°, low 54°.
0.28Big Rock, Sunday, 1 November
Rain. High 59°, low 58°.
0Big Rock, Monday, 2 November
Overcast. High 67°, low 55°.
0.06Big Rock, Tuesday, 3 November
Light rain. High 66°, low 55°.
0Big Rock, Wednesday, 4 November
Partly cloudy. High 55°, low 48°.
0Big Rock, Thursday, 5 November
Overcast. High 53°, low 45°.
0
Big Rock, Friday, 6 November
Mostly clear. High 54°, low 44°.
0.01Big Rock, Saturday, 7 November
Light rain. High 58°, low 43°.
0.11Big Rock, Sunday, 8 November
Light rain. High 57°, low 50°.
0.08Big Rock, Monday, 9 November
Light rain. High 50°, low 40°.
0.12
Big Rock, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Big Rock, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Big Rock, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Big Rock, Friday, 13 November
Climate normal for this date — 60-year average.
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.
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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