Mount Hamill, Saturday, 10 October, 04:47
Clear. Feels like 60°. High 82°, low 61°.
Mount Hamill, Sunday, 11 October
Clear. High 82°, low 56°.
Mount Hamill, Monday, 12 October
Clear. High 86°, low 68°.
Mount Hamill, Tuesday, 13 October
Light rain. High 80°, low 68°.
Mount Hamill, Wednesday, 14 October
Light rain. High 70°, low 62°.
Mount Hamill, Thursday, 15 October
Rain. High 60°, low 55°.
Mount Hamill, Friday, 16 October
Overcast. High 62°, low 48°.
Mount Hamill, Saturday, 17 October
Snow. High 44°, low 36°.
Mount Hamill, Sunday, 18 October
Clear. High 47°, low 29°.
Mount Hamill, Monday, 19 October
Partly cloudy. High 56°, low 33°.
Mount Hamill, Tuesday, 20 October
Overcast. High 63°, low 42°.
Mount Hamill, Wednesday, 21 October
Clear. High 67°, low 44°.
Mount Hamill, Thursday, 22 October
Rain. High 72°, low 48°.
Mount Hamill, Friday, 23 October
Light rain. High 63°, low 53°.
Mount Hamill, Saturday, 24 October
Light rain. High 63°, low 50°.
Mount Hamill, Sunday, 25 October
Overcast. High 56°, 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 Mount Hamill, 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 Mount Hamill, 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.