Weather in Chesterfield, IL
Chesterfield, Sunday, 18 October, 18:07
Clear. Feels like 60°. High 64°, low 38°.
0
Chesterfield, Monday, 19 October
Partly cloudy. High 69°, low 40°.
0
Chesterfield, Tuesday, 20 October
Mostly clear. High 68°, low 47°.
0Chesterfield, Wednesday, 21 October
Clear. High 70°, low 47°.
0Chesterfield, Thursday, 22 October
Clear. High 70°, low 48°.
0Chesterfield, Friday, 23 October
Mostly clear. High 70°, low 48°.
0
Chesterfield, Saturday, 24 October
Overcast. High 75°, low 52°.
0Chesterfield, Sunday, 25 October
Overcast. High 77°, low 59°.
0Chesterfield, Monday, 26 October
Overcast. High 72°, low 59°.
0Chesterfield, Tuesday, 27 October
Overcast. High 73°, low 57°.
0Chesterfield, Wednesday, 28 October
Overcast. High 73°, low 57°.
0.02
Chesterfield, Thursday, 29 October
Light rain. High 75°, low 60°.
0.47Chesterfield, Friday, 30 October
Rain. High 70°, low 61°.
0Chesterfield, Saturday, 31 October
Overcast. High 67°, low 51°.
2.78Chesterfield, Sunday, 1 November
Heavy rain. High 70°, low 58°.
0.91Chesterfield, Monday, 2 November
Rain. High 66°, low 45°.
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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