Weather in Harrisburg, IL
Harrisburg, Sunday, 8 November, 14:35
Clear. Feels like 62°. High 64°, low 33°.
0Harrisburg, Monday, 9 November
Clear. High 66°, low 37°.
0Harrisburg, Tuesday, 10 November
Clear. High 68°, low 41°.
0.53
Harrisburg, Wednesday, 11 November
Heavy rain. High 68°, low 46°.
0.25Harrisburg, Thursday, 12 November
Rain. High 55°, low 44°.
0
Harrisburg, Friday, 13 November
Overcast. High 44°, low 40°.
0
Harrisburg, Saturday, 14 November
Mostly clear. High 51°, low 34°.
0Harrisburg, Sunday, 15 November
Clear. High 66°, low 40°.
0Harrisburg, Monday, 16 November
Mostly clear. High 72°, low 51°.
0.09Harrisburg, Tuesday, 17 November
Light rain. High 74°, low 55°.
0.44Harrisburg, Wednesday, 18 November
Rain. High 64°, low 61°.
0.02Harrisburg, Thursday, 19 November
Light rain. High 68°, low 54°.
0.25Harrisburg, Friday, 20 November
Rain. High 65°, low 51°.
0.13Harrisburg, Saturday, 21 November
Light rain. High 55°, low 45°.
0.25Harrisburg, Sunday, 22 November
Rain. High 50°, low 41°.
0Harrisburg, Monday, 23 November
Overcast. High 47°, low 34°.
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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