Weather in Lake Catherine, IL
Lake Catherine, Friday, 30 October, 13:02
Overcast. Feels like 53°. High 56°, low 42°.
Monthly outlook for Lake Catherine, IL: average high 54.4°, average low 45.4°. That is 2.4° above the climate normal for October. Precipitation is expected on 7 days (about 1.9 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 3 November (66.7°), the coolest 12 November (33.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 57.8° | 51.9° | +3.2° |
| 9 November – 18 November | 48.7° | 46.4° | +1.3° |
| 19 November – 28 November | at normal | 42.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (8 mi).
0.29
Lake Catherine, Saturday, 31 October
Rain. High 65°, low 52°.
0Lake Catherine, Sunday, 1 November
Overcast. High 63°, low 52°.
0.02Lake Catherine, Monday, 2 November
Light rain. High 61°, low 54°.
0.15Lake Catherine, Tuesday, 3 November
Light rain. High 67°, low 62°.
0.5Lake Catherine, Wednesday, 4 November
Rain. High 66°, low 57°.
0.24Lake Catherine, Thursday, 5 November
Rain. High 56°, low 51°.
0Lake Catherine, Friday, 6 November
Overcast. High 50°, low 45°.
0
Lake Catherine, Saturday, 7 November
Mostly clear. High 49°, low 36°.
0Lake Catherine, Sunday, 8 November
Overcast. High 47°, low 39°.
0.01Lake Catherine, Monday, 9 November
Light rain. High 49°, low 41°.
0.04Lake Catherine, Tuesday, 10 November
Light rain. High 47°, low 42°.
0Lake Catherine, Wednesday, 11 November
Mostly clear. High 48°, low 34°.
0
Lake Catherine, Thursday, 12 November
Clear. High 50°, low 33°.
0.17Lake Catherine, Friday, 13 November
Light rain. High 47°, low 40°.
0.51Lake Catherine, Saturday, 14 November
Rain. High 52°, low 46°.
0.08
Lake Catherine, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Lake Catherine, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Lake Catherine, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Lake Catherine, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Lake Catherine, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07
Lake Catherine, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Lake Catherine, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Lake Catherine, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Lake Catherine, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Lake Catherine, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Lake Catherine, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Lake Catherine, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Lake Catherine, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Lake Catherine, Saturday, 28 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 Lake Catherine, 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 Lake Catherine, 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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