Weather in Jamestown, IL
Jamestown, Saturday, 31 October, 22:40
Overcast. Feels like 64°. High 69°, low 58°.
0.03
Jamestown, Sunday, 1 November
Light rain. High 68°, low 60°.
0.01Jamestown, Monday, 2 November
Light rain. High 69°, low 60°.
0.32Jamestown, Tuesday, 3 November
Rain. High 75°, low 66°.
0.43Jamestown, Wednesday, 4 November
Rain. High 65°, low 58°.
0Jamestown, Thursday, 5 November
Overcast. High 62°, low 51°.
0Jamestown, Friday, 6 November
Overcast. High 56°, low 51°.
0
Jamestown, Saturday, 7 November
Partly cloudy. High 62°, low 47°.
0
Jamestown, Sunday, 8 November
Clear. High 56°, low 45°.
0
Jamestown, Monday, 9 November
Mostly clear. High 56°, low 38°.
0Jamestown, Tuesday, 10 November
Overcast. High 59°, low 42°.
0Jamestown, Wednesday, 11 November
Partly cloudy. High 56°, low 37°.
0Jamestown, Thursday, 12 November
Overcast. High 51°, low 43°.
0Jamestown, Friday, 13 November
Overcast. High 63°, low 49°.
0Jamestown, Saturday, 14 November
Partly cloudy. High 59°, low 45°.
0Jamestown, Sunday, 15 November
Clear. High 56°, low 38°.
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 Jamestown, 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 Jamestown, 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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