Granite City, IL Weather Forecast for 5-Days

Updated: Thu Nov 6th 2025 9:45 PM CST

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Granite City, IL Weather – 11-6 – Sunny
71° / 38°
Sunny
In Granite City, it will be sunny with highs near 71°F and lows around 38°F. Wind will be moderate, blowing around 15mph on average and gusts of 19.8mph at 11 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 72% at 11 PM and 64% being its lowest at 10 PM. Barometric pressure is its highest of 29.85inHg at 10 PM, a lowest point of 29.82inHg at 11 PM with an avg 29.84inHg.
Granite City, IL Weather – 11-7 – Sunny
73° / 54°
Sunny
In Granite City, it will be sunny with highs near 73°F and lows around 54°F. Wind will be moderate, blowing around 13mph on average and gusts of 20.1mph at 12 AM. The humidity will be on the higher side, averaging about 65%, the maximum being 91% at 8 AM and 39% being its lowest at 4 PM. Barometric pressure is its highest of 29.79inHg at 11 PM, a lowest point of 29.65inHg at 5 AM with an avg 29.71inHg.
Granite City, IL Weather – 11-8 – Partly Cloudy
65° / 44°
Partly Cloudy
Skies will be cloudy in Granite City, with a high of 65°F and a low of 44°F. Winds will be strong at speeds peaking at 22mph and gusts of 29.9mph at 9 PM. The humidity will be on the higher side, averaging about 67%, the maximum being 89% at 10 PM and 47% being its lowest at 4 PM. Barometric pressure is its highest of 29.91inHg at 10 AM, a lowest point of 29.78inHg at 4 PM with an avg 29.85inHg.
Granite City, IL Weather – 11-9 – Overcast
39° / 33°
Overcast
Granite City is set for overcast with temperatures peaking at 39°F and dipping to 33°F. Wind will be moderate, blowing around 20mph on average and gusts of 25.9mph at 12 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 88% at 7 AM and 35% being its lowest at 8 PM. Barometric pressure is its highest of 30.4inHg at 7 PM, a lowest point of 29.86inHg at 12 AM with an avg 30.22inHg.
Granite City, IL Weather – 11-10 – Sunny
43° / 28°
Sunny
Daytime highs will reach 43°F with lows dropping to 28°F in Granite City, where bright and sunny conditions. Wind will be moderate, blowing around 11mph on average and gusts of 16.5mph at 12 AM. Humidity levels should be comfortable, sitting around 45% on average, the maximum being 62% at 7 AM and 25% being its lowest at 2 PM. Barometric pressure is its highest of 30.44inHg at 9 AM, a lowest point of 30.28inHg at 11 PM with an avg 30.37inHg.
Granite City, IL Weather – 11-11 – Sunny
58° / 34°
Sunny
Bright and sunny conditions in Granite City, with a high of 58°F and a low of 34°F. Wind will be moderate, blowing around 19mph on average and gusts of 25.3mph at 7 PM. Humidity levels should be comfortable, sitting around 46% on average, the maximum being 55% at 5 AM and 29% being its lowest at 4 PM. Barometric pressure is its highest of 30.28inHg at 12 AM, a lowest point of 29.83inHg at 4 PM with an avg 30.01inHg.

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