Weather in Posen, IL
Posen, Tuesday, 27 October, 14:23
Clear. Feels like 70°. High 70°, low 51°.
Monthly outlook for Posen, IL: average high 60°, average low 50.1°. That is 3.7° above the climate normal for October. Precipitation is expected on 4 days (about 1.5 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 28 October (72.2°), the coolest 11 November (34.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 27 October – 5 November | 64.1° | 54.8° | +5.2° |
| 6 November – 15 November | 53° | 49.4° | +2° |
| 16 November – 25 November | at normal | 45.7° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Blue Island (2 mi).
0
Posen, Wednesday, 28 October
Mostly clear. High 72°, low 57°.
0.02
Posen, Thursday, 29 October
Light rain. High 69°, low 54°.
0
Posen, Friday, 30 October
Overcast. High 65°, low 47°.
0.36Posen, Saturday, 31 October
Rain. High 64°, low 53°.
0Posen, Sunday, 1 November
Overcast. High 68°, low 52°.
0Posen, Monday, 2 November
Overcast. High 60°, low 56°.
0Posen, Tuesday, 3 November
Overcast. High 60°, low 55°.
0.24Posen, Wednesday, 4 November
Rain. High 56°, low 53°.
0.59Posen, Thursday, 5 November
Rain. High 57°, low 54°.
0.02Posen, Friday, 6 November
Light rain. High 54°, low 52°.
0Posen, Saturday, 7 November
Overcast. High 54°, low 48°.
0
Posen, Sunday, 8 November
Partly cloudy. High 58°, low 44°.
0.24Posen, Monday, 9 November
Rain. High 60°, low 49°.
0Posen, Tuesday, 10 November
Overcast. High 48°, low 41°.
0Posen, Wednesday, 11 November
Partly cloudy. High 44°, low 34°.
0.06Posen, Thursday, 12 November
Climate normal for this date — 60-year average.
0.05Posen, Friday, 13 November
Climate normal for this date — 60-year average.
0.07
Posen, Saturday, 14 November
Climate normal for this date — 60-year average.
0.1Posen, Sunday, 15 November
Climate normal for this date — 60-year average.
0.05Posen, Monday, 16 November
Climate normal for this date — 60-year average.
0.09Posen, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.15Posen, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.08Posen, Thursday, 19 November
Climate normal for this date — 60-year average.
0.1Posen, Friday, 20 November
Climate normal for this date — 60-year average.
0.11Posen, Saturday, 21 November
Climate normal for this date — 60-year average.
0.05Posen, Sunday, 22 November
Climate normal for this date — 60-year average.
0.09Posen, Monday, 23 November
Climate normal for this date — 60-year average.
0.08Posen, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.08Posen, Wednesday, 25 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 Posen, 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 Posen, 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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