Pearl, Thursday, 8 October, 18:17
Clear. Feels like 81°. High 83°, low 52°.
Pearl, Friday, 9 October
Mostly clear. High 86°, low 56°.
Pearl, Saturday, 10 October
Overcast. High 80°, low 56°.
Pearl, Sunday, 11 October
Clear. High 80°, low 55°.
Pearl, Monday, 12 October
Clear. High 90°, low 63°.
Pearl, Tuesday, 13 October
Rain. High 85°, low 67°.
Pearl, Wednesday, 14 October
Rain. High 82°, low 63°.
Pearl, Thursday, 15 October
Rain. High 79°, low 71°.
Pearl, Friday, 16 October
Rain. High 70°, low 53°.
Pearl, Saturday, 17 October
Mostly clear. High 56°, low 44°.
Pearl, Sunday, 18 October
Clear. High 59°, low 39°.
Pearl, Monday, 19 October
Clear. High 65°, low 41°.
Pearl, Tuesday, 20 October
Partly cloudy. High 74°, low 49°.
Pearl, Wednesday, 21 October
Light rain. High 70°, low 55°.
Pearl, Thursday, 22 October
Clear. High 72°, low 52°.
Pearl, Friday, 23 October
Mostly clear. High 76°, low 55°.
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 Pearl, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
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.
They are real temperature extremes recorded in Pearl, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.