Weather in Big Rock, IL
Big Rock, Wednesday, 4 November, 21:22
Overcast. Feels like 51°. High 65°, low 51°.
Monthly outlook for Big Rock, IL: average high 55.5°, average low 42.2°. That is 3.4° above the climate normal for November. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 15 November (64.5°), the coolest 7 November (31.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 4 November – 13 November | 54° | 50.5° | +1.9° |
| 14 November – 23 November | 58.1° | 46.6° | +6.4° |
| 24 November – 3 December | at normal | 41.3° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Boulder Hill (11 mi).
0.04
Big Rock, Thursday, 5 November
Light rain. High 53°, low 48°.
0Big Rock, Friday, 6 November
Overcast. High 49°, low 36°.
0
Big Rock, Saturday, 7 November
Partly cloudy. High 49°, low 32°.
0
Big Rock, Sunday, 8 November
Clear. High 59°, low 38°.
0
Big Rock, Monday, 9 November
Mostly clear. High 59°, low 35°.
0Big Rock, Tuesday, 10 November
Clear. High 59°, low 46°.
0Big Rock, Wednesday, 11 November
Overcast. High 49°, low 37°.
0Big Rock, Thursday, 12 November
Clear. High 46°, low 33°.
0Big Rock, Friday, 13 November
Overcast. High 52°, low 34°.
0Big Rock, Saturday, 14 November
Clear. High 59°, low 41°.
0Big Rock, Sunday, 15 November
Partly cloudy. High 65°, low 48°.
0.02Big Rock, Monday, 16 November
Light rain. High 56°, low 51°.
0.13Big Rock, Tuesday, 17 November
Light rain. High 53°, low 49°.
0Big Rock, Wednesday, 18 November
Overcast. High 54°, low 48°.
0.11Big Rock, Thursday, 19 November
Light rain. High 61°, low 49°.
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.
0.12Big Rock, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Big Rock, Sunday, 29 November
Climate normal for this date — 60-year average.
0.08Big Rock, Monday, 30 November
Climate normal for this date — 60-year average.
0.15Big Rock, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.06Big Rock, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.08Big Rock, Thursday, 3 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 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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