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Dundas, IL Weather Tomorrow

Keep up with changing weather in Dundas using tomorrow's forecast and the next 5 days of 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 Dundas area and around Richland county, Illinois.
Updated: Sat Sep 5th 2026 11:00 AM CDT
Dundas, IL Weather – 9-5 – Sunny
102° / 75°
Sunny
Highs will reach 102°F with lows near 75°F in Dundas, where a sunny day is. Rainfall predicted to have a 66% chance with an estimated 0.4in. Wind will be moderate, blowing around 20mph on average and gusts of 23.3mph at 6 PM. The humidity will be on the higher side, averaging about 63%, the maximum being 92% at 10 PM and 28% being its lowest at 4 PM. Barometric pressure is its highest of 29.92inHg at 10 PM, a lowest point of 29.78inHg at 5 PM with an avg 29.86inHg.
Dundas, IL Weather – 9-6 – Sunny
88° / 68°

Weather Tomorrow

Sunny
Bright and sunny conditions in Dundas, with a high of 88°F and a low of 68°F. There might be light rainfall having a 17% chance with an estimated 0.01in. Wind will be moderate, blowing around 15mph on average and gusts of 28.4mph at 11 PM. The humidity will be on the higher side, averaging about 64%, the maximum being 98% at 3 AM and 31% being its lowest at 3 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.9inHg at 12 AM with an avg 29.96inHg.
Dundas, IL Weather – 9-7 – Sunny
90° / 61°
Sunny
Daytime highs will reach 90°F with lows dropping to 61°F in Dundas, where bright and sunny conditions. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 11mph on average and gusts of 26mph at 12 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 96% at 5 AM and 22% being its lowest at 4 PM. Barometric pressure is its highest of 30.09inHg at 9 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.04inHg.
Dundas, IL Weather – 9-8 – Sunny
98° / 67°
Sunny
Daytime highs will reach 98°F with lows dropping to 67°F in Dundas, where it will be sunny. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 14mph on average and gusts of 33.6mph at 11 PM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 92% at 6 AM and 26% being its lowest at 4 PM. Barometric pressure is its highest of 30.1inHg at 8 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.05inHg.
Dundas, IL Weather – 9-9 – Sunny
100° / 78°
Sunny
In Dundas, bright and sunny conditions with highs near 100°F and lows around 78°F. Rainfall predicted to have a 57% chance with an estimated 0.09in. Wind will be moderate, blowing around 17mph on average and gusts of 36.9mph at 3 AM. Humidity levels should be comfortable, sitting around 51% on average, the maximum being 74% at 8 PM and 28% being its lowest at 2 PM. Barometric pressure is its highest of 30.11inHg at 8 AM, a lowest point of 29.94inHg at 5 PM with an avg 30.03inHg.
Dundas, IL Weather – 9-10 – Scattered Showers
75° / 66°
Scattered Showers
Dundas could see scattered showers with daytime highs of 75°F and nighttime lows near 66°F. There might be light rainfall having a 20% chance with an estimated 0in. Winds will be light at 10mph and gusts of 15.7mph at 10 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 85% at 1 PM and 51% being its lowest at 10 AM. Barometric pressure is its highest of 30.09inHg at 10 AM, a lowest point of 30.02inHg at 5 PM with an avg 30.04inHg.

Currently

Sunny 99°F
29.91 inHg.
Barometer
50%
Humidity
W 13 mph
Wind
Sunny

5 Day Forecast Nearby

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