Weather in Third Lake, IL
Third Lake, Saturday, 10 October, 00:19
Mostly clear. Feels like 61°. High 77°, low 58°.
Monthly outlook for Third Lake, IL: average high 62°, average low 49.3°. That is 1.8° above the climate normal for October. Precipitation is expected on 5 days (about 1.1 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 October (79.8°), the coolest 18 October (30.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 10 October – 19 October | 64° | 59.7° | +2.4° |
| 20 October – 29 October | 58.7° | 56° | +1.5° |
| 30 October – 8 November | at normal | 51.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Round Lake Beach (4 mi).
0
Third Lake, Sunday, 11 October
Clear. High 73°, low 56°.
0
Third Lake, Monday, 12 October
Overcast. High 80°, low 62°.
0.01
Third Lake, Tuesday, 13 October
Light rain. High 73°, low 61°.
0.04Third Lake, Wednesday, 14 October
Light rain. High 62°, low 57°.
0.05Third Lake, Thursday, 15 October
Light rain. High 60°, low 56°.
0.01Third Lake, Friday, 16 October
Light rain. High 63°, low 45°.
0.01Third Lake, Saturday, 17 October
Light rain. High 45°, low 34°.
0
Third Lake, Sunday, 18 October
Mostly clear. High 49°, low 31°.
0Third Lake, Monday, 19 October
Clear. High 58°, low 37°.
0.04Third Lake, Tuesday, 20 October
Light rain. High 62°, low 45°.
0.32Third Lake, Wednesday, 21 October
Rain. High 65°, low 49°.
0.65Third Lake, Thursday, 22 October
Rain. High 59°, low 56°.
0Third Lake, Friday, 23 October
Overcast. High 60°, low 54°.
0.01Third Lake, Saturday, 24 October
Light rain. High 55°, low 47°.
0
Third Lake, Sunday, 25 October
Partly cloudy. High 50°, low 40°.
0.13Third Lake, Monday, 26 October
Climate normal for this date — 60-year average.
0.08
Third Lake, Tuesday, 27 October
Climate normal for this date — 60-year average.
0.05Third Lake, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.06Third Lake, Thursday, 29 October
Climate normal for this date — 60-year average.
0.09Third Lake, Friday, 30 October
Climate normal for this date — 60-year average.
0.12Third Lake, Saturday, 31 October
Climate normal for this date — 60-year average.
0.16Third Lake, Sunday, 1 November
Climate normal for this date — 60-year average.
0.14Third Lake, Monday, 2 November
Climate normal for this date — 60-year average.
0.06Third Lake, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.1Third Lake, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.12Third Lake, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09Third Lake, Friday, 6 November
Climate normal for this date — 60-year average.
0.05Third Lake, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04Third Lake, Sunday, 8 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 Third Lake, 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 Third Lake, 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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