Weather in Monticello, IL
Monticello, Saturday, 31 October, 13:12
Overcast. Feels like 65°. High 66°, low 55°.
0Monticello, Sunday, 1 November
Overcast. High 71°, low 57°.
0Monticello, Monday, 2 November
Overcast. High 64°, low 55°.
0.03
Monticello, Tuesday, 3 November
Light rain. High 72°, low 63°.
0.89Monticello, Wednesday, 4 November
Rain. High 68°, low 53°.
0.01Monticello, Thursday, 5 November
Light rain. High 59°, low 49°.
0Monticello, Friday, 6 November
Overcast. High 56°, low 53°.
0
Monticello, Saturday, 7 November
Partly cloudy. High 58°, low 44°.
0Monticello, Sunday, 8 November
Overcast. High 57°, low 45°.
0Monticello, Monday, 9 November
Light rain. High 57°, low 50°.
0
Monticello, Tuesday, 10 November
Clear. High 63°, low 46°.
0Monticello, Wednesday, 11 November
Overcast. High 61°, low 48°.
0.01Monticello, Thursday, 12 November
Light rain. High 55°, low 44°.
0
Monticello, Friday, 13 November
Mostly clear. High 57°, low 39°.
0Monticello, Saturday, 14 November
Mostly clear. High 63°, low 46°.
0Monticello, Sunday, 15 November
Overcast. High 53°, low 41°.
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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