Weather in Harrisburg, IL
Harrisburg, Thursday, 29 October, 23:09
Clear. Feels like 55°. High 80°, low 53°.
0
Harrisburg, Friday, 30 October
Overcast. High 79°, low 53°.
0
Harrisburg, Saturday, 31 October
Light rain. High 70°, low 56°.
0.01Harrisburg, Sunday, 1 November
Light rain. High 65°, low 58°.
0Harrisburg, Monday, 2 November
Overcast. High 70°, low 59°.
0.01Harrisburg, Tuesday, 3 November
Light rain. High 77°, low 64°.
0.76Harrisburg, Wednesday, 4 November
Rain. High 67°, low 60°.
0.11Harrisburg, Thursday, 5 November
Light rain. High 67°, low 59°.
0
Harrisburg, Friday, 6 November
Clear. High 66°, low 51°.
0
Harrisburg, Saturday, 7 November
Partly cloudy. High 65°, low 49°.
0.01Harrisburg, Sunday, 8 November
Light rain. High 64°, low 49°.
0.03Harrisburg, Monday, 9 November
Light rain. High 68°, low 55°.
0Harrisburg, Tuesday, 10 November
Overcast. High 53°, low 48°.
0Harrisburg, Wednesday, 11 November
Overcast. High 55°, low 46°.
0.56Harrisburg, Thursday, 12 November
Rain. High 51°, low 45°.
0.01Harrisburg, Friday, 13 November
Light rain. High 61°, low 47°.
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 Harrisburg, 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 Harrisburg, 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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