Harris, Sunday, 11 October, 01:08
Overcast. Feels like 56°. High 80°, low 52°.
Harris, Monday, 12 October
Partly cloudy. High 86°, low 57°.
Harris, Tuesday, 13 October
Overcast. High 87°, low 70°.
Harris, Wednesday, 14 October
Light rain. High 78°, low 63°.
Harris, Thursday, 15 October
Overcast. High 63°, low 53°.
Harris, Friday, 16 October
Overcast. High 59°, low 40°.
Harris, Saturday, 17 October
Light snow. High 44°, low 34°.
Harris, Sunday, 18 October
Overcast. High 50°, low 31°.
Harris, Monday, 19 October
Partly cloudy. High 58°, low 36°.
Harris, Tuesday, 20 October
Clear. High 64°, low 40°.
Harris, Wednesday, 21 October
Overcast. High 69°, low 44°.
Harris, Thursday, 22 October
Clear. High 68°, low 48°.
Harris, Friday, 23 October
Partly cloudy. High 61°, low 45°.
Harris, Saturday, 24 October
Mostly clear. High 60°, low 42°.
Harris, Sunday, 25 October
Light rain. High 53°, low 45°.
Harris, Monday, 26 October
Light rain. High 72°, low 50°.
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 Harris, 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 Harris, 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.