Weather in Grand Tower, IL
Grand Tower, Sunday, 1 November, 01:27
Light rain. Feels like 61°. High 64°, low 58°.
0.02Grand Tower, Monday, 2 November
Light rain. High 69°, low 60°.
0.41Grand Tower, Tuesday, 3 November
Rain. High 74°, low 66°.
0.54Grand Tower, Wednesday, 4 November
Heavy rain. High 67°, low 59°.
0
Grand Tower, Thursday, 5 November
Clear. High 67°, low 51°.
0
Grand Tower, Friday, 6 November
Overcast. High 59°, low 54°.
0Grand Tower, Saturday, 7 November
Overcast. High 65°, low 48°.
0Grand Tower, Sunday, 8 November
Clear. High 60°, low 48°.
0Grand Tower, Monday, 9 November
Clear. High 58°, low 38°.
0Grand Tower, Tuesday, 10 November
Overcast. High 65°, low 42°.
0
Grand Tower, Wednesday, 11 November
Mostly clear. High 59°, low 40°.
0.04Grand Tower, Thursday, 12 November
Light rain. High 55°, low 48°.
0.11Grand Tower, Friday, 13 November
Light rain. High 62°, low 51°.
0Grand Tower, Saturday, 14 November
Clear. High 63°, low 46°.
0Grand Tower, Sunday, 15 November
Clear. High 58°, low 40°.
0Grand Tower, Monday, 16 November
Overcast. High 58°, low 40°.
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 Grand Tower, 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 Grand Tower, 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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