Weather in New Dennison, IL
New Dennison, Sunday, 18 October, 18:24
Clear. Feels like 56°. High 64°, low 38°.
0
New Dennison, Monday, 19 October
Clear. High 69°, low 42°.
0New Dennison, Tuesday, 20 October
Clear. High 69°, low 47°.
0New Dennison, Wednesday, 21 October
Clear. High 70°, low 47°.
0New Dennison, Thursday, 22 October
Clear. High 70°, low 49°.
0
New Dennison, Friday, 23 October
Partly cloudy. High 70°, low 50°.
0
New Dennison, Saturday, 24 October
Overcast. High 77°, low 51°.
0New Dennison, Sunday, 25 October
Overcast. High 78°, low 57°.
0New Dennison, Monday, 26 October
Overcast. High 76°, low 56°.
0New Dennison, Tuesday, 27 October
Overcast. High 76°, low 57°.
0New Dennison, Wednesday, 28 October
Overcast. High 69°, low 61°.
0.02
New Dennison, Thursday, 29 October
Light rain. High 78°, low 61°.
0.42New Dennison, Friday, 30 October
Rain. High 68°, low 59°.
0.08New Dennison, Saturday, 31 October
Light rain. High 69°, low 63°.
0.17New Dennison, Sunday, 1 November
Light rain. High 80°, low 65°.
0.69New Dennison, Monday, 2 November
Rain. High 73°, low 52°.
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 New Dennison, 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 New Dennison, 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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