Grand Pass, Thursday, 22 October, 02:40
Clear. Feels like 49°. High 77°, low 48°.
Grand Pass, Friday, 23 October
Clear. High 74°, low 48°.
Grand Pass, Saturday, 24 October
Overcast. High 72°, low 50°.
Grand Pass, Sunday, 25 October
Mostly clear. High 75°, low 51°.
Grand Pass, Monday, 26 October
Overcast. High 73°, low 54°.
Grand Pass, Tuesday, 27 October
Light rain. High 68°, low 53°.
Grand Pass, Wednesday, 28 October
Light rain. High 49°, low 44°.
Grand Pass, Thursday, 29 October
Clear. High 58°, low 36°.
Grand Pass, Friday, 30 October
Overcast. High 66°, low 39°.
Grand Pass, Saturday, 31 October
Light rain. High 69°, low 52°.
Grand Pass, Sunday, 1 November
Rain. High 59°, low 53°.
Grand Pass, Monday, 2 November
Light rain. High 60°, low 44°.
Grand Pass, Tuesday, 3 November
Overcast. High 57°, low 38°.
Grand Pass, Wednesday, 4 November
Light rain. High 58°, low 50°.
Grand Pass, Thursday, 5 November
Overcast. High 58°, low 42°.
Grand Pass, Friday, 6 November
Overcast. High 52°, low 38°.
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 Grand Pass, 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 Grand Pass, 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.