Charter Oak, Friday, 16 October, 01:57
Overcast. Feels like 40°. High 50°, low 37°.
Charter Oak, Saturday, 17 October
Clear. High 57°, low 32°.
Charter Oak, Sunday, 18 October
Clear. High 62°, low 42°.
Charter Oak, Monday, 19 October
Overcast. High 61°, low 47°.
Charter Oak, Tuesday, 20 October
Clear. High 68°, low 50°.
Charter Oak, Wednesday, 21 October
Rain. High 71°, low 54°.
Charter Oak, Thursday, 22 October
Light rain. High 72°, low 56°.
Charter Oak, Friday, 23 October
Overcast. High 69°, low 61°.
Charter Oak, Saturday, 24 October
Clear. High 64°, low 52°.
Charter Oak, Sunday, 25 October
Light rain. High 48°, low 43°.
Charter Oak, Monday, 26 October
Rain. High 49°, low 44°.
Charter Oak, Tuesday, 27 October
Light rain. High 53°, low 39°.
Charter Oak, Wednesday, 28 October
Rain. High 48°, low 40°.
Charter Oak, Thursday, 29 October
Partly cloudy. High 56°, low 37°.
Charter Oak, Friday, 30 October
Mostly clear. High 60°, low 43°.
Charter Oak, Saturday, 31 October
Overcast. High 62°, low 47°.
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.