Van Petten, Wednesday, 14 October, 04:15
Overcast. Feels like 65°. High 72°, low 59°.
Van Petten, Thursday, 15 October
Heavy rain. High 65°, low 58°.
Van Petten, Friday, 16 October
Light rain. High 58°, low 47°.
Van Petten, Saturday, 17 October
Clear. High 56°, low 37°.
Van Petten, Sunday, 18 October
Clear. High 62°, low 43°.
Van Petten, Monday, 19 October
Overcast. High 64°, low 42°.
Van Petten, Tuesday, 20 October
Clear. High 67°, low 49°.
Van Petten, Wednesday, 21 October
Clear. High 68°, low 51°.
Van Petten, Thursday, 22 October
Clear. High 60°, low 43°.
Van Petten, Friday, 23 October
Clear. High 54°, low 38°.
Van Petten, Saturday, 24 October
Overcast. High 55°, low 40°.
Van Petten, Sunday, 25 October
Light rain. High 49°, low 39°.
Van Petten, Monday, 26 October
Clear. High 51°, low 33°.
Van Petten, Tuesday, 27 October
Clear. High 56°, low 41°.
Van Petten, Wednesday, 28 October
Overcast. High 53°, low 43°.
Van Petten, Thursday, 29 October
Overcast. High 56°, low 44°.
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 Van Petten, 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 Van Petten, 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.