Weather in Boulder Hill, IL
Boulder Hill, Friday, 23 October, 07:49
Clear. Feels like 50°. High 72°, low 48°.
Monthly outlook for Boulder Hill, IL: average high 61.5°, average low 46.7°. That is 3.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (72.1°), the coolest 3 November (33.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 66.1° | 56.8° | +5.1° |
| 2 November – 11 November | 54° | 51.9° | +1.2° |
| 12 November – 21 November | at normal | 47° | — |
October records over 66 years
0
Boulder Hill, Saturday, 24 October
Overcast. High 70°, low 48°.
0Boulder Hill, Sunday, 25 October
Clear. High 72°, low 50°.
0Boulder Hill, Monday, 26 October
Overcast. High 65°, low 51°.
0Boulder Hill, Tuesday, 27 October
Overcast. High 64°, low 50°.
0.02
Boulder Hill, Wednesday, 28 October
Light rain. High 71°, low 53°.
0Boulder Hill, Thursday, 29 October
Overcast. High 72°, low 56°.
1.01Boulder Hill, Friday, 30 October
Rain. High 60°, low 55°.
0.48Boulder Hill, Saturday, 31 October
Rain. High 59°, low 57°.
0.06Boulder Hill, Sunday, 1 November
Light rain. High 56°, low 47°.
0.06Boulder Hill, Monday, 2 November
Light rain. High 48°, low 38°.
0Boulder Hill, Tuesday, 3 November
Clear. High 52°, low 33°.
0Boulder Hill, Wednesday, 4 November
Clear. High 54°, low 37°.
0Boulder Hill, Thursday, 5 November
Clear. High 57°, low 40°.
0Boulder Hill, Friday, 6 November
Overcast. High 56°, low 41°.
0Boulder Hill, Saturday, 7 November
Overcast. High 58°, low 43°.
0.06
Boulder Hill, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Boulder Hill, Monday, 9 November
Climate normal for this date — 60-year average.
0.12Boulder Hill, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Boulder Hill, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Boulder Hill, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Boulder 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.
0.05
Boulder 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.
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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