Weather in Boulder Hill, IL
Boulder Hill, Wednesday, 28 October, 20:12
Partly cloudy. Feels like 67°. High 76°, low 52°.
Monthly outlook for Boulder Hill, IL: average high 55.9°, average low 45.1°. That is 1.7° above the climate normal for October. Precipitation is expected on 8 days (about 3.6 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (75.9°), the coolest 12 November (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 28 October – 6 November | 62.5° | 54.6° | +4.4° |
| 7 November – 16 November | 44.8° | 48.9° | -2.3° |
| 17 November – 26 November | at normal | 45.3° | — |
October records over 66 years
0
Boulder Hill, Thursday, 29 October
Overcast. High 70°, low 53°.
0.29
Boulder Hill, Friday, 30 October
Heavy rain. High 65°, low 49°.
1.21Boulder Hill, Saturday, 31 October
Heavy rain. High 60°, low 52°.
0Boulder Hill, Sunday, 1 November
Overcast. High 67°, low 53°.
0.05Boulder Hill, Monday, 2 November
Light rain. High 65°, low 53°.
0.49Boulder Hill, Tuesday, 3 November
Light rain. High 61°, low 58°.
0.59Boulder Hill, Wednesday, 4 November
Rain. High 59°, low 55°.
0.33Boulder Hill, Thursday, 5 November
Light rain. High 58°, low 47°.
0
Boulder Hill, Friday, 6 November
Clear. High 45°, low 36°.
0Boulder Hill, Saturday, 7 November
Clear. High 46°, low 31°.
0.5Boulder Hill, Sunday, 8 November
Rain. High 44°, low 39°.
0.11Boulder Hill, Monday, 9 November
Light rain. High 49°, low 43°.
0Boulder Hill, Tuesday, 10 November
Overcast. High 47°, low 39°.
0
Boulder Hill, Wednesday, 11 November
Mostly clear. High 40°, low 30°.
0Boulder Hill, Thursday, 12 November
Mostly clear. High 41°, low 29°.
0.05
Boulder Hill, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Boulder Hill, Saturday, 14 November
Climate normal for this date — 60-year average.
0.09Boulder Hill, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Boulder Hill, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Boulder Hill, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.13Boulder Hill, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Boulder Hill, Thursday, 19 November
Climate normal for this date — 60-year average.
0.08Boulder Hill, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Boulder Hill, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Boulder Hill, Sunday, 22 November
Climate normal for this date — 60-year average.
0.08Boulder Hill, Monday, 23 November
Climate normal for this date — 60-year average.
0.07Boulder Hill, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08
Boulder Hill, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.11Boulder Hill, Thursday, 26 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 Boulder Hill, 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 Boulder Hill, 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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