Weather in Monticello, IL
Monticello, Wednesday, 28 October, 22:10
Clear. Feels like 56°. High 77°, low 51°.
0
Monticello, Thursday, 29 October
Overcast. High 75°, low 55°.
0Monticello, Friday, 30 October
Overcast. High 71°, low 51°.
1.35
Monticello, Saturday, 31 October
Heavy rain. High 58°, low 54°.
0Monticello, Sunday, 1 November
Overcast. High 70°, low 56°.
0.05Monticello, Monday, 2 November
Light rain. High 64°, low 56°.
0.53Monticello, Tuesday, 3 November
Rain. High 67°, low 63°.
0.85Monticello, Wednesday, 4 November
Heavy rain. High 66°, low 62°.
0.04Monticello, Thursday, 5 November
Light rain. High 67°, low 58°.
0.09Monticello, Friday, 6 November
Light rain. High 59°, low 46°.
0
Monticello, Saturday, 7 November
Clear. High 53°, low 38°.
0Monticello, Sunday, 8 November
Overcast. High 52°, low 39°.
0.02Monticello, Monday, 9 November
Light rain. High 54°, low 41°.
0.07Monticello, Tuesday, 10 November
Light rain. High 51°, low 42°.
0Monticello, Wednesday, 11 November
Overcast. High 50°, low 38°.
0Monticello, Thursday, 12 November
Clear. High 48°, low 37°.
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 Monticello, 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 Monticello, 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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