Charter Oak, Tuesday, 20 October, 04:45
Clear. Feels like 39°. High 69°, low 39°.
Charter Oak, Wednesday, 21 October
Clear. High 72°, low 48°.
Charter Oak, Thursday, 22 October
Clear. High 73°, low 53°.
Charter Oak, Friday, 23 October
Partly cloudy. High 72°, low 56°.
Charter Oak, Saturday, 24 October
Overcast. High 73°, low 59°.
Charter Oak, Sunday, 25 October
Rain. High 61°, low 51°.
Charter Oak, Monday, 26 October
Heavy rain. High 48°, low 40°.
Charter Oak, Tuesday, 27 October
Clear. High 41°, low 31°.
Charter Oak, Wednesday, 28 October
Clear. High 45°, low 26°.
Charter Oak, Thursday, 29 October
Overcast. High 50°, low 34°.
Charter Oak, Friday, 30 October
Overcast. High 49°, low 37°.
Charter Oak, Saturday, 31 October
Partly cloudy. High 50°, low 37°.
Charter Oak, Sunday, 1 November
Overcast. High 53°, low 41°.
Charter Oak, Monday, 2 November
Light rain. High 44°, low 43°.
Charter Oak, Tuesday, 3 November
Light rain. High 57°, low 42°.
Charter Oak, Wednesday, 4 November
Partly cloudy. High 61°, low 42°.
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 Charter Oak, IA 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 Charter Oak, IA 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.