Weather in Harrisburg, IL
Harrisburg, Saturday, 31 October, 07:03
Clear. Feels like 57°. High 73°, low 58°.
0.11
Harrisburg, Sunday, 1 November
Light rain. High 65°, low 55°.
0
Harrisburg, Monday, 2 November
Overcast. High 69°, low 57°.
0Harrisburg, Tuesday, 3 November
Light rain. High 72°, low 64°.
0.85Harrisburg, Wednesday, 4 November
Rain. High 69°, low 65°.
0.3Harrisburg, Thursday, 5 November
Rain. High 68°, low 60°.
0Harrisburg, Friday, 6 November
Overcast. High 67°, low 56°.
0Harrisburg, Saturday, 7 November
Overcast. High 68°, low 61°.
0.35Harrisburg, Sunday, 8 November
Rain. High 74°, low 62°.
0.71Harrisburg, Monday, 9 November
Rain. High 64°, low 55°.
0Harrisburg, Tuesday, 10 November
Overcast. High 65°, low 51°.
0
Harrisburg, Wednesday, 11 November
Clear. High 61°, low 46°.
0Harrisburg, Thursday, 12 November
Overcast. High 64°, low 46°.
0Harrisburg, Friday, 13 November
Overcast. High 67°, low 51°.
0Harrisburg, Saturday, 14 November
Clear. High 63°, low 50°.
0
Harrisburg, Sunday, 15 November
Partly cloudy. High 69°, low 48°.
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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