Weather in Harrisburg, IL
Harrisburg, Sunday, 8 November, 03:30
Clear. Feels like 32°. High 63°, low 32°.
0
Harrisburg, Monday, 9 November
Clear. High 65°, low 38°.
0Harrisburg, Tuesday, 10 November
Clear. High 68°, low 48°.
0.02
Harrisburg, Wednesday, 11 November
Light rain. High 70°, low 48°.
0.01Harrisburg, Thursday, 12 November
Light rain. High 54°, low 42°.
0
Harrisburg, Friday, 13 November
Overcast. High 42°, low 37°.
0
Harrisburg, Saturday, 14 November
Partly cloudy. High 49°, low 29°.
0Harrisburg, Sunday, 15 November
Clear. High 62°, low 37°.
0Harrisburg, Monday, 16 November
Partly cloudy. High 67°, low 46°.
0Harrisburg, Tuesday, 17 November
Partly cloudy. High 70°, low 51°.
0Harrisburg, Wednesday, 18 November
Overcast. High 71°, low 53°.
0
Harrisburg, Thursday, 19 November
Mostly clear. High 72°, low 55°.
0.4Harrisburg, Friday, 20 November
Rain. High 70°, low 57°.
0Harrisburg, Saturday, 21 November
Partly cloudy. High 58°, low 47°.
0Harrisburg, Sunday, 22 November
Overcast. High 57°, low 39°.
0.13Harrisburg, Monday, 23 November
Light rain. High 58°, low 43°.
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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