Madison County, IL Weather Tomorrow

Tomorrow's forecast for Madison County includes an extended 5 day weather outlook with precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Madison County area.
Updated: Wed Oct 28th 2026 12:00 PM CDT
Madison County, IL Weather – 10-28 – Sunny
78° / 54°
Sunny
In Madison County, it will be sunny with highs near 78°F and lows around 54°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 12mph on average and gusts of 22.1mph at 11 PM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 61% at 10 PM and 32% being its lowest at 3 PM. Barometric pressure is its highest of 30.18inHg at 1 PM, a lowest point of 30.1inHg at 5 PM with an avg 30.13inHg.
Madison County, IL Weather – 10-29 – Sunny
81° / 58°

Weather Tomorrow

Sunny
Daytime highs will reach 81°F with lows dropping to 58°F in Madison County, where bright and sunny conditions. There's a very small chance of rainfall, only about 5% with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 12 AM. Humidity levels should be comfortable, sitting around 60% on average, the maximum being 84% at 10 PM and 39% being its lowest at 2 PM. Barometric pressure is its highest of 30.18inHg at 11 PM, a lowest point of 30.08inHg at 5 PM with an avg 30.13inHg.
Madison County, IL Weather – 10-30 – Overcast
77° / 58°
Overcast
In Madison County, it will be overcast with highs near 77°F and lows around 58°F. There might be light rainfall having a 21% chance with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 18.8mph at 9 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 96% at 7 AM and 40% being its lowest at 3 PM. Barometric pressure is its highest of 30.25inHg at 10 AM, a lowest point of 30.16inHg at 5 PM with an avg 30.2inHg.
Madison County, IL Weather – 10-31 – Overcast
74° / 59°
Overcast
Cloud-filled skies are in the forecast for Madison County, with a high of 74°F and a low of 59°F. There's a moderate 38% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 12mph on average and gusts of 21.5mph at 11 PM. Humidity levels should be comfortable, sitting around 56% on average, the maximum being 86% at 11 PM and 36% being its lowest at 2 PM. Barometric pressure is its highest of 30.23inHg at 10 AM, a lowest point of 30.12inHg at 5 PM with an avg 30.18inHg.
Madison County, IL Weather – 11-1 – Scattered Showers
70° / 59°
Scattered Showers
Madison County is set for scattered showers with temperatures peaking at 70°F and dipping to 59°F. Rainfall predicted to have a 75% chance with an estimated 0.06in. Winds will be light at 10mph and gusts of 19mph at 12 AM. High humidity with average of 88% is anticipated, the maximum being 96% at 11 PM and 67% being its lowest at 3 PM. Barometric pressure is its highest of 30.19inHg at 9 AM, a lowest point of 29.93inHg at 11 PM with an avg 30.05inHg.
Madison County, IL Weather – 11-2 – Scattered Showers
69° / 61°
Scattered Showers
Passing showers are in the forecast for Madison County, with a high of 69°F and a low of 61°F. The chance of rain is 88% with an estimated 0.72in. Wind will be moderate, blowing around 14mph on average and gusts of 31.8mph at 6 PM. High humidity with average of 81% is anticipated, the maximum being 92% at 3 AM and 65% being its lowest at 12 PM. Barometric pressure is its highest of 30.08inHg at 12 AM, a lowest point of 29.84inHg at 11 PM with an avg 29.96inHg.

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