Weather in Piasa, IL
Piasa, Saturday, 24 October, 23:22
Mostly clear. Feels like 59°. High 75°, low 48°.
Monthly outlook for Piasa, IL: average high 72.7°, average low 55.2°. That is 7.6° above the climate normal for October. Precipitation is expected on 3 days (about 2.0 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 1 November (80.2°), the coolest 24 October (47.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 24 October – 2 November | 76.6° | 60.6° | +8.9° |
| 3 November – 12 November | 66.2° | 55.5° | +6° |
| 13 November – 22 November | at normal | 52° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Jerseyville (11 mi).
0
Piasa, Sunday, 25 October
Overcast. High 77°, low 49°.
0Piasa, Monday, 26 October
Overcast. High 76°, low 52°.
0Piasa, Tuesday, 27 October
Overcast. High 72°, low 54°.
0
Piasa, Wednesday, 28 October
Clear. High 76°, low 55°.
0
Piasa, Thursday, 29 October
Mostly clear. High 79°, low 59°.
0Piasa, Friday, 30 October
Overcast. High 78°, low 59°.
0.04
Piasa, Saturday, 31 October
Light rain. High 79°, low 65°.
0.06Piasa, Sunday, 1 November
Light rain. High 80°, low 68°.
0Piasa, Monday, 2 November
Overcast. High 75°, low 60°.
1.24Piasa, Tuesday, 3 November
Rain. High 62°, low 52°.
0.71Piasa, Wednesday, 4 November
Heavy rain. High 59°, low 54°.
0Piasa, Thursday, 5 November
Overcast. High 63°, low 49°.
0Piasa, Friday, 6 November
Overcast. High 70°, low 48°.
0Piasa, Saturday, 7 November
Overcast. High 80°, low 62°.
0
Piasa, Sunday, 8 November
Partly cloudy. High 63°, low 51°.
0.1Piasa, Monday, 9 November
Climate normal for this date — 60-year average.
0.14Piasa, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.1Piasa, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Piasa, Thursday, 12 November
Climate normal for this date — 60-year average.
0.06Piasa, Friday, 13 November
Climate normal for this date — 60-year average.
0.08Piasa, Saturday, 14 November
Climate normal for this date — 60-year average.
0.12Piasa, Sunday, 15 November
Climate normal for this date — 60-year average.
0.1Piasa, Monday, 16 November
Climate normal for this date — 60-year average.
0.13Piasa, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.16
Piasa, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.09Piasa, Thursday, 19 November
Climate normal for this date — 60-year average.
0.11Piasa, Friday, 20 November
Climate normal for this date — 60-year average.
0.1Piasa, Saturday, 21 November
Climate normal for this date — 60-year average.
0.08Piasa, Sunday, 22 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 Piasa, 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 Piasa, 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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