Weather in New Dennison, IL
New Dennison, Monday, 19 October, 02:25
Clear. Feels like 43°. High 70°, low 42°.
0
New Dennison, Tuesday, 20 October
Clear. High 71°, low 45°.
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 68°, low 49°.
0
New Dennison, Saturday, 24 October
Overcast. High 75°, low 49°.
0New Dennison, Sunday, 25 October
Overcast. High 74°, low 56°.
0New Dennison, Monday, 26 October
Overcast. High 75°, low 54°.
0New Dennison, Tuesday, 27 October
Overcast. High 67°, low 54°.
0New Dennison, Wednesday, 28 October
Overcast. High 75°, low 57°.
0.06
New Dennison, Thursday, 29 October
Light rain. High 74°, low 61°.
0.25New Dennison, Friday, 30 October
Light rain. High 69°, low 66°.
3.52New Dennison, Saturday, 31 October
Heavy rain. High 68°, low 62°.
1.13New Dennison, Sunday, 1 November
Heavy rain. High 69°, low 50°.
0New Dennison, Monday, 2 November
Overcast. High 63°, low 45°.
0New Dennison, Tuesday, 3 November
Overcast. High 66°, low 50°.
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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