Weather in Lake Barrington, IL
Lake Barrington, Friday, 30 October, 05:31
Mostly clear. Feels like 44°. High 58°, low 44°.
Monthly outlook for Lake Barrington, IL: average high 60.9°, average low 49.7°. That is 6.1° above the climate normal for October. Precipitation is expected on 9 days (about 3.0 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 1 November (69°), the coolest 6 November (39.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 60.4° | 51.9° | +4.7° |
| 9 November – 18 November | 61.8° | 46.4° | +8.5° |
| 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 (12 mi).
0.51
Lake Barrington, Saturday, 31 October
Rain. High 62°, low 51°.
0
Lake Barrington, Sunday, 1 November
Overcast. High 69°, low 49°.
0.04Lake Barrington, Monday, 2 November
Light rain. High 61°, low 55°.
0.29Lake Barrington, Tuesday, 3 November
Light rain. High 67°, low 60°.
0.62Lake Barrington, Wednesday, 4 November
Rain. High 64°, low 58°.
0.28Lake Barrington, Thursday, 5 November
Rain. High 56°, low 49°.
0
Lake Barrington, Friday, 6 November
Partly cloudy. High 52°, low 40°.
0Lake Barrington, Saturday, 7 November
Overcast. High 55°, low 42°.
0.35Lake Barrington, Sunday, 8 November
Rain. High 59°, low 49°.
0
Lake Barrington, Monday, 9 November
Clear. High 61°, low 45°.
0
Lake Barrington, Tuesday, 10 November
Mostly clear. High 61°, low 45°.
0.06Lake Barrington, Wednesday, 11 November
Light rain. High 62°, low 54°.
0.02Lake Barrington, Thursday, 12 November
Light rain. High 65°, low 53°.
0.59Lake Barrington, Friday, 13 November
Rain. High 55°, low 46°.
0.23Lake Barrington, Saturday, 14 November
Rain. High 67°, low 55°.
0.08Lake Barrington, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Lake Barrington, Monday, 16 November
Climate normal for this date — 60-year average.
0.1Lake Barrington, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.1Lake Barrington, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Lake Barrington, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07
Lake Barrington, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Lake Barrington, Saturday, 21 November
Climate normal for this date — 60-year average.
0.04Lake Barrington, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07Lake Barrington, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Lake Barrington, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Lake Barrington, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.12Lake Barrington, Thursday, 26 November
Climate normal for this date — 60-year average.
0.21Lake Barrington, Friday, 27 November
Climate normal for this date — 60-year average.
0.12Lake Barrington, 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 Barrington, 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 Barrington, 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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