Weather in Big Rock, IL
Big Rock, Friday, 6 November, 11:45
Overcast. Feels like 38°. High 44°, low 33°.
Monthly outlook for Big Rock, IL: average high 54°, average low 41.3°. That is 3.1° above the climate normal for November. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 20 November (64°), the coolest 7 November (30.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 6 November – 15 November | 51.6° | 49.5° | +1.2° |
| 16 November – 25 November | 58.1° | 45.7° | +6.9° |
| 26 November – 5 December | at normal | 40.4° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Boulder Hill (11 mi).
0Big Rock, Saturday, 7 November
Overcast. High 49°, low 30°.
0
Big Rock, Sunday, 8 November
Clear. High 59°, low 39°.
0
Big Rock, Monday, 9 November
Partly cloudy. High 57°, low 36°.
0Big Rock, Tuesday, 10 November
Clear. High 60°, low 46°.
0.14
Big Rock, Wednesday, 11 November
Light rain. High 55°, low 37°.
0Big Rock, Thursday, 12 November
Overcast. High 44°, low 34°.
0Big Rock, Friday, 13 November
Overcast. High 43°, low 31°.
0Big Rock, Saturday, 14 November
Clear. High 47°, low 32°.
0Big Rock, Sunday, 15 November
Clear. High 57°, low 37°.
0Big Rock, Monday, 16 November
Overcast. High 59°, low 47°.
0.01Big Rock, Tuesday, 17 November
Light rain. High 51°, low 48°.
0Big Rock, Wednesday, 18 November
Overcast. High 56°, low 51°.
0.12Big Rock, Thursday, 19 November
Light rain. High 57°, low 53°.
0.01Big Rock, Friday, 20 November
Light rain. High 64°, low 53°.
0.22Big Rock, Saturday, 21 November
Light rain. High 60°, low 55°.
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.
0.06Big Rock, Friday, 4 December
Climate normal for this date — 60-year average.
0.07Big Rock, Saturday, 5 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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