Weather in Granite City, IL
Granite City, Thursday, 12 November, 10:53
Overcast. Feels like 48°. High 51°, low 41°.
Monthly outlook for Granite City, IL: average high 57°, average low 42.7°. That is 2.6° above the climate normal for November. Precipitation is expected on 5 days (about 3.2 inches), against a normal of 5 days and 1.9 inches. The warmest day looks like 21 November (70.2°), the coolest 14 November (32.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 November – 21 November | 57° | 53.5° | +1.9° |
| 22 November – 1 December | 57° | 49.2° | +4.4° |
| 2 December – 11 December | at normal | 44.8° | — |
November records over 66 years
Climate normals and records are computed from the nearest reference point — Flordell Hills (7 mi).
0Granite City, Friday, 13 November
Overcast. High 48°, low 40°.
0
Granite City, Saturday, 14 November
Clear. High 46°, low 33°.
0Granite City, Sunday, 15 November
Overcast. High 49°, low 33°.
0Granite City, Monday, 16 November
Clear. High 52°, low 34°.
0Granite City, Tuesday, 17 November
Clear. High 55°, low 35°.
0
Granite City, Wednesday, 18 November
Mostly clear. High 64°, low 41°.
0.01
Granite City, Thursday, 19 November
Light rain. High 70°, low 50°.
0.06Granite City, Friday, 20 November
Light rain. High 64°, low 53°.
0Granite City, Saturday, 21 November
Overcast. High 70°, low 58°.
0.05Granite City, Sunday, 22 November
Light rain. High 69°, low 60°.
1.61Granite City, Monday, 23 November
Heavy rain. High 61°, low 55°.
0.5Granite City, Tuesday, 24 November
Rain. High 61°, low 40°.
0Granite City, Wednesday, 25 November
Clear. High 43°, low 33°.
0Granite City, Thursday, 26 November
Overcast. High 46°, low 33°.
0.94Granite City, Friday, 27 November
Rain. High 62°, low 44°.
0.1
Granite City, Saturday, 28 November
Climate normal for this date — 60-year average.
0.07Granite City, Sunday, 29 November
Climate normal for this date — 60-year average.
0.17Granite City, Monday, 30 November
Climate normal for this date — 60-year average.
0.11Granite City, Tuesday, 1 December
Climate normal for this date — 60-year average.
0.08Granite City, Wednesday, 2 December
Climate normal for this date — 60-year average.
0.11Granite City, Thursday, 3 December
Climate normal for this date — 60-year average.
0.08Granite City, Friday, 4 December
Climate normal for this date — 60-year average.
0.09Granite City, Saturday, 5 December
Climate normal for this date — 60-year average.
0.06
Granite City, Sunday, 6 December
Climate normal for this date — 60-year average.
0.09Granite City, Monday, 7 December
Climate normal for this date — 60-year average.
0.08Granite City, Tuesday, 8 December
Climate normal for this date — 60-year average.
0.07Granite City, Wednesday, 9 December
Climate normal for this date — 60-year average.
0.11Granite City, Thursday, 10 December
Climate normal for this date — 60-year average.
0.09Granite City, Friday, 11 December
Climate normal for this date — 60-year average.
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 Granite City, 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 Granite City, 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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