Weather in Lake Catherine, IL
Lake Catherine, Monday, 26 October, 05:38
Overcast. Feels like 51°. High 65°, low 51°.
Monthly outlook for Lake Catherine, IL: average high 61.9°, average low 50.4°. That is 5.4° above the climate normal for October. Precipitation is expected on 5 days (about 5.8 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (68.8°), the coolest 30 October (45.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 26 October – 4 November | 62.5° | 53.5° | +5° |
| 5 November – 14 November | 60.9° | 48.2° | +7° |
| 15 November – 24 November | at normal | 44.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (8 mi).
0Lake Catherine, Tuesday, 27 October
Overcast. High 69°, low 51°.
0Lake Catherine, Wednesday, 28 October
Overcast. High 69°, low 54°.
0.03
Lake Catherine, Thursday, 29 October
Light rain. High 66°, low 56°.
0.48Lake Catherine, Friday, 30 October
Rain. High 64°, low 45°.
0.46Lake Catherine, Saturday, 31 October
Rain. High 62°, low 55°.
0.07Lake Catherine, Sunday, 1 November
Light rain. High 60°, low 53°.
0Lake Catherine, Monday, 2 November
Overcast. High 62°, low 52°.
3.88Lake Catherine, Tuesday, 3 November
Heavy rain. High 58°, low 52°.
0.9Lake Catherine, Wednesday, 4 November
Rain. High 51°, low 46°.
0.02Lake Catherine, Thursday, 5 November
Light rain. High 55°, low 48°.
0
Lake Catherine, Friday, 6 November
Partly cloudy. High 61°, low 46°.
0Lake Catherine, Saturday, 7 November
Overcast. High 63°, low 50°.
0Lake Catherine, Sunday, 8 November
Partly cloudy. High 51°, low 45°.
0
Lake Catherine, Monday, 9 November
Clear. High 68°, low 50°.
0Lake Catherine, Tuesday, 10 November
Overcast. High 68°, low 54°.
0.08
Lake Catherine, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.06Lake 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.
0.05
Lake 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.
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.
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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