Weather in Flat Rock, IL
Flat Rock, Saturday, 10 October, 00:33
Overcast. Feels like 61°. High 75°, low 53°.
0
Flat Rock, Sunday, 11 October
Clear. High 78°, low 53°.
0Flat Rock, Monday, 12 October
Clear. High 87°, low 61°.
0Flat Rock, Tuesday, 13 October
Clear. High 89°, low 68°.
0.37
Flat Rock, Wednesday, 14 October
Rain. High 78°, low 69°.
0.56Flat Rock, Thursday, 15 October
Rain. High 71°, low 60°.
0.08Flat Rock, Friday, 16 October
Light rain. High 69°, low 56°.
0Flat Rock, Saturday, 17 October
Overcast. High 50°, low 39°.
0Flat Rock, Sunday, 18 October
Clear. High 54°, low 33°.
0
Flat Rock, Monday, 19 October
Mostly clear. High 61°, low 37°.
0Flat Rock, Tuesday, 20 October
Overcast. High 66°, low 46°.
0Flat Rock, Wednesday, 21 October
Overcast. High 65°, low 49°.
1.09Flat Rock, Thursday, 22 October
Heavy rain. High 61°, low 55°.
0Flat Rock, Friday, 23 October
Overcast. High 66°, low 55°.
0Flat Rock, Saturday, 24 October
Overcast. High 62°, low 50°.
0
Flat Rock, Sunday, 25 October
Partly cloudy. High 60°, low 42°.
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 Flat Rock, 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 Flat Rock, 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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