Weather in Pontoon Beach, IL
Pontoon Beach, Monday, 19 October, 19:41
Partly cloudy. Feels like 55°. High 71°, low 40°.
Monthly outlook for Pontoon Beach, IL: average high 66°, average low 45.8°. That is 2° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 25 October (77.8°), the coolest 29 October (30.5°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 68° | 63.4° | +2.6° |
| 29 October – 7 November | 62.5° | 59.4° | +1.7° |
| 8 November – 17 November | at normal | 54.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Edwardsville (6 mi).
0
Pontoon Beach, Tuesday, 20 October
Clear. High 72°, low 45°.
0Pontoon Beach, Wednesday, 21 October
Clear. High 70°, low 46°.
0Pontoon Beach, Thursday, 22 October
Clear. High 72°, low 51°.
0Pontoon Beach, Friday, 23 October
Clear. High 68°, low 52°.
0
Pontoon Beach, Saturday, 24 October
Overcast. High 67°, low 49°.
0Pontoon Beach, Sunday, 25 October
Overcast. High 78°, low 53°.
0Pontoon Beach, Monday, 26 October
Overcast. High 74°, low 60°.
0.03
Pontoon Beach, Tuesday, 27 October
Light rain. High 60°, low 49°.
0Pontoon Beach, Wednesday, 28 October
Clear. High 48°, low 36°.
0Pontoon Beach, Thursday, 29 October
Clear. High 53°, low 30°.
0
Pontoon Beach, Friday, 30 October
Partly cloudy. High 62°, low 37°.
0Pontoon Beach, Saturday, 31 October
Overcast. High 69°, low 45°.
0Pontoon Beach, Sunday, 1 November
Overcast. High 65°, low 50°.
0.01Pontoon Beach, Monday, 2 November
Light rain. High 65°, low 49°.
0Pontoon Beach, Tuesday, 3 November
Clear. High 61°, low 41°.
0.16Pontoon Beach, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.16Pontoon Beach, Thursday, 5 November
Climate normal for this date — 60-year average.
0.09
Pontoon Beach, Friday, 6 November
Climate normal for this date — 60-year average.
0.08Pontoon Beach, Saturday, 7 November
Climate normal for this date — 60-year average.
0.04
Pontoon Beach, Sunday, 8 November
Climate normal for this date — 60-year average.
0.1Pontoon Beach, Monday, 9 November
Climate normal for this date — 60-year average.
0.13Pontoon Beach, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.11Pontoon Beach, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.09Pontoon Beach, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Pontoon Beach, Friday, 13 November
Climate normal for this date — 60-year average.
0.1Pontoon Beach, Saturday, 14 November
Climate normal for this date — 60-year average.
0.13Pontoon Beach, Sunday, 15 November
Climate normal for this date — 60-year average.
0.11Pontoon Beach, Monday, 16 November
Climate normal for this date — 60-year average.
0.12Pontoon Beach, Tuesday, 17 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 Pontoon Beach, 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 Pontoon Beach, 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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