Weather in Chesterfield, IL
Chesterfield, Wednesday, 14 October, 07:55
Light rain. Feels like 70°. High 80°, low 69°.
1.24Chesterfield, Thursday, 15 October
Heavy rain. High 81°, low 67°.
0.09Chesterfield, Friday, 16 October
Light rain. High 66°, low 51°.
0
Chesterfield, Saturday, 17 October
Clear. High 57°, low 42°.
0Chesterfield, Sunday, 18 October
Clear. High 62°, low 42°.
0
Chesterfield, Monday, 19 October
Overcast. High 66°, low 43°.
0Chesterfield, Tuesday, 20 October
Overcast. High 66°, low 55°.
0Chesterfield, Wednesday, 21 October
Clear. High 72°, low 51°.
0
Chesterfield, Thursday, 22 October
Partly cloudy. High 69°, low 52°.
0Chesterfield, Friday, 23 October
Clear. High 60°, low 41°.
0Chesterfield, Saturday, 24 October
Overcast. High 58°, low 39°.
0Chesterfield, Sunday, 25 October
Overcast. High 57°, low 43°.
0Chesterfield, Monday, 26 October
Clear. High 58°, low 34°.
0Chesterfield, Tuesday, 27 October
Clear. High 65°, low 40°.
0.07Chesterfield, Wednesday, 28 October
Light rain. High 67°, low 47°.
0.07Chesterfield, Thursday, 29 October
Light rain. High 55°, 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 Chesterfield, 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 Chesterfield, 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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