Weather in St. Charles, IA
St. Charles, Sunday, 18 October, 00:55
Clear. Feels like 38°. High 63°, low 42°.
0
St. Charles, Monday, 19 October
Partly cloudy. High 65°, low 44°.
0
St. Charles, Tuesday, 20 October
Clear. High 67°, low 44°.
0
St. Charles, Wednesday, 21 October
Overcast. High 70°, low 49°.
0St. Charles, Thursday, 22 October
Clear. High 71°, low 49°.
0St. Charles, Friday, 23 October
Partly cloudy. High 71°, low 53°.
0.01
St. Charles, Saturday, 24 October
Light rain. High 73°, low 52°.
0St. Charles, Sunday, 25 October
Overcast. High 54°, low 42°.
0St. Charles, Monday, 26 October
Partly cloudy. High 58°, low 36°.
0St. Charles, Tuesday, 27 October
Overcast. High 69°, low 44°.
0St. Charles, Wednesday, 28 October
Overcast. High 71°, low 58°.
0.07St. Charles, Thursday, 29 October
Light rain. High 75°, low 58°.
0St. Charles, Friday, 30 October
Clear. High 69°, low 49°.
0.02St. Charles, Saturday, 31 October
Light rain. High 66°, low 53°.
0.02St. Charles, Sunday, 1 November
Light rain. High 66°, low 49°.
0St. Charles, Monday, 2 November
Clear. High 67°, low 49°.
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 St. Charles, IA 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 St. Charles, IA 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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