Weather in New Dennison, IL
New Dennison, Sunday, 18 October, 11:28
Clear. Feels like 58°. High 63°, low 38°.
0
New Dennison, Monday, 19 October
Mostly clear. High 68°, low 43°.
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°.
0New Dennison, Friday, 23 October
Clear. High 69°, low 50°.
0
New Dennison, Saturday, 24 October
Overcast. High 80°, low 54°.
0New Dennison, Sunday, 25 October
Overcast. High 78°, low 60°.
0New Dennison, Monday, 26 October
Overcast. High 74°, low 57°.
0New Dennison, Tuesday, 27 October
Overcast. High 77°, low 56°.
0.26
New Dennison, Wednesday, 28 October
Rain. High 69°, low 63°.
0.15New Dennison, Thursday, 29 October
Light rain. High 83°, low 65°.
0.08New Dennison, Friday, 30 October
Light rain. High 85°, low 64°.
0.37New Dennison, Saturday, 31 October
Rain. High 69°, low 49°.
0New Dennison, Sunday, 1 November
Clear. High 59°, low 41°.
0New Dennison, Monday, 2 November
Clear. High 61°, low 39°.
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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