Weather in Harristown, IL
Harristown, Sunday, 25 October, 18:34
Clear. Feels like 65°. High 76°, low 48°.
0
Harristown, Monday, 26 October
Overcast. High 74°, low 51°.
0Harristown, Tuesday, 27 October
Overcast. High 70°, low 49°.
0
Harristown, Wednesday, 28 October
Mostly clear. High 71°, low 55°.
0.02
Harristown, Thursday, 29 October
Light rain. High 77°, low 57°.
0Harristown, Friday, 30 October
Overcast. High 72°, low 57°.
0.11Harristown, Saturday, 31 October
Light rain. High 64°, low 58°.
0.07Harristown, Sunday, 1 November
Light rain. High 62°, low 55°.
0.01Harristown, Monday, 2 November
Light rain. High 64°, low 57°.
0Harristown, Tuesday, 3 November
Overcast. High 68°, low 51°.
0Harristown, Wednesday, 4 November
Overcast. High 68°, low 50°.
0.04Harristown, Thursday, 5 November
Light rain. High 65°, low 57°.
0Harristown, Friday, 6 November
Overcast. High 65°, low 51°.
0.11Harristown, Saturday, 7 November
Light rain. High 70°, low 52°.
0.02Harristown, Sunday, 8 November
Light rain. High 63°, low 50°.
0
Harristown, Monday, 9 November
Partly cloudy. High 52°, low 45°.
About the monthly outlook
How accurate is a 30-day forecast?
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 Harristown, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.
What does "above normal" mean?
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.
Where do the 66-year records come from?
They are real temperature extremes recorded in Harristown, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.
How often is it updated?
The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.
Sun and moon today
Weather history
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