Weather in Lake Catherine, IL
Lake Catherine, Friday, 23 October, 07:24
Clear. Feels like 46°. High 71°, low 46°.
Monthly outlook for Lake Catherine, IL: average high 59.9°, average low 45.6°. That is 3.6° above the climate normal for October. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 29 October (71.7°), the coolest 3 November (32°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 63.5° | 54.9° | +4.8° |
| 2 November – 11 November | 53.9° | 50.1° | +2.1° |
| 12 November – 21 November | at normal | 45.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (8 mi).
0
Lake Catherine, Saturday, 24 October
Overcast. High 69°, low 48°.
0Lake Catherine, Sunday, 25 October
Clear. High 71°, low 53°.
0Lake Catherine, Monday, 26 October
Overcast. High 59°, low 50°.
0.01
Lake Catherine, Tuesday, 27 October
Light rain. High 59°, low 49°.
0Lake Catherine, Wednesday, 28 October
Clear. High 69°, low 52°.
0Lake Catherine, Thursday, 29 October
Overcast. High 72°, low 59°.
0.92Lake Catherine, Friday, 30 October
Rain. High 59°, low 52°.
0.32Lake Catherine, Saturday, 31 October
Rain. High 54°, low 50°.
0.02Lake Catherine, Sunday, 1 November
Light rain. High 52°, low 45°.
0.06Lake Catherine, Monday, 2 November
Light rain. High 47°, low 37°.
0Lake Catherine, Tuesday, 3 November
Clear. High 52°, low 32°.
0Lake Catherine, Wednesday, 4 November
Clear. High 54°, low 36°.
0Lake Catherine, Thursday, 5 November
Clear. High 56°, low 38°.
0Lake Catherine, Friday, 6 November
Overcast. High 56°, low 40°.
0Lake Catherine, Saturday, 7 November
Overcast. High 58°, low 41°.
0.04
Lake Catherine, Sunday, 8 November
Climate normal for this date — 60-year average.
0.11
Lake Catherine, Monday, 9 November
Climate normal for this date — 60-year average.
0.11Lake Catherine, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.08Lake Catherine, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06
Lake Catherine, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Lake Catherine, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Lake Catherine, Saturday, 14 November
Climate normal for this date — 60-year average.
0.08Lake 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.
0.07Lake 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.
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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