Grand Pass, Saturday, 24 October, 21:15
Mostly clear. Feels like 59°. High 76°, low 49°.
Grand Pass, Sunday, 25 October
Overcast. High 77°, low 50°.
Grand Pass, Monday, 26 October
Overcast. High 77°, low 53°.
Grand Pass, Tuesday, 27 October
Overcast. High 72°, low 53°.
Grand Pass, Wednesday, 28 October
Light rain. High 76°, low 55°.
Grand Pass, Thursday, 29 October
Partly cloudy. High 79°, low 59°.
Grand Pass, Friday, 30 October
Overcast. High 78°, low 59°.
Grand Pass, Saturday, 31 October
Light rain. High 80°, low 66°.
Grand Pass, Sunday, 1 November
Light rain. High 79°, low 68°.
Grand Pass, Monday, 2 November
Overcast. High 75°, low 59°.
Grand Pass, Tuesday, 3 November
Heavy rain. High 63°, low 53°.
Grand Pass, Wednesday, 4 November
Heavy rain. High 59°, low 54°.
Grand Pass, Thursday, 5 November
Overcast. High 63°, low 49°.
Grand Pass, Friday, 6 November
Partly cloudy. High 72°, low 49°.
Grand Pass, Saturday, 7 November
Overcast. High 77°, low 63°.
Grand Pass, Sunday, 8 November
Partly cloudy. High 62°, low 51°.
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.