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Wheaton, IL Weather Tomorrow

Follow tomorrow's Wheaton weather with an accurate 5 day outlook that includes precipitation potential, daytime and nighttime forecasts, temperature highs and lows in Fahrenheit and Celsius, sunrise and sunset times, cloud cover, wind chill, wind speed, and wind direction for the Wheaton area and around DuPage county, Illinois.
Updated: Tue Oct 13th 2026 8:15 AM CDT
Wheaton, IL Weather – 10-13 – Sunny
79° / 69°
Sunny
Sunshine is in the forecast for Wheaton, with a high of 79°F and a low of 69°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 14mph on average and gusts of 19mph at 9 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 74% at 9 AM and 50% being its lowest at 2 PM. Barometric pressure is its highest of 29.91inHg at 11 PM, a lowest point of 29.82inHg at 9 AM with an avg 29.85inHg.
Wheaton, IL Weather – 10-14 – Overcast
69° / 59°

Weather Tomorrow

Overcast
Daytime highs will reach 69°F with lows dropping to 59°F in Wheaton, where skies will be overcast. There's a moderate 41% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 11mph on average and gusts of 20.4mph at 11 PM. The humidity will be on the higher side, averaging about 70%, the maximum being 78% at 3 AM and 60% being its lowest at 3 PM. Barometric pressure is its highest of 30.16inHg at 8 PM, a lowest point of 29.9inHg at 12 AM with an avg 30.03inHg.
Wheaton, IL Weather – 10-15 – Overcast
60° / 56°
Overcast
Wheaton could see cloud-filled skies with daytime highs of 60°F and nighttime lows near 56°F. The chance of rain is 90% with an estimated 0.97in. Wind will be moderate, blowing around 13mph on average and gusts of 27.6mph at 11 PM. High humidity with average of 85% is anticipated, the maximum being 96% at 8 PM and 70% being its lowest at 4 AM. Barometric pressure is its highest of 30.15inHg at 12 AM, a lowest point of 29.8inHg at 6 PM with an avg 29.98inHg.
Wheaton, IL Weather – 10-16 – Sunny
56° / 44°
Sunny
It will be sunny in Wheaton, with a high of 56°F and a low of 44°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 19mph on average and gusts of 34.9mph at 9 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 85% at 1 AM and 46% being its lowest at 4 PM. Barometric pressure is its highest of 30.47inHg at 11 PM, a lowest point of 29.87inHg at 12 AM with an avg 30.19inHg.
Wheaton, IL Weather – 10-17 – Sunny
55° / 41°
Sunny
It will be sunny in Wheaton, with a high of 55°F and a low of 41°F. There's a very small chance of rainfall, only about 2%. Winds will be light at 10mph and gusts of 23.3mph at 11 PM. Humidity levels should be comfortable, sitting around 48% on average, the maximum being 56% at 7 AM and 36% being its lowest at 1 PM. Barometric pressure is its highest of 30.56inHg at 9 AM, a lowest point of 30.37inHg at 10 PM with an avg 30.47inHg.
Wheaton, IL Weather – 10-18 – Sunny
61° / 44°
Sunny
In Wheaton, bright and sunny conditions with highs near 61°F and lows around 44°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 12mph on average and gusts of 27.7mph at 4 AM. Humidity levels should be comfortable, sitting around 44% on average, the maximum being 55% at 1 AM and 32% being its lowest at 1 PM. Barometric pressure is its highest of 30.36inHg at 12 AM, a lowest point of 30.19inHg at 4 PM with an avg 30.27inHg.

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