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Clinton, IL Weather Tomorrow

See how tomorrow's weather in Clinton compares with the upcoming 5 day forecast, including daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Clinton area and around De Witt county, Illinois.
Updated: Thu Sep 3rd 2026 6:00 AM CDT
Clinton, IL Weather – 9-3 – Sunny
97° / 75°
Sunny
Bright and sunny conditions in Clinton, with a high of 97°F and a low of 75°F. There's a very small chance of rainfall, only about 4% with an estimated 0in. Wind will be moderate, blowing around 11mph on average and gusts of 21.9mph at 7 AM. Humidity levels should be comfortable, sitting around 54% on average, the maximum being 73% at 7 AM and 32% being its lowest at 4 PM. Barometric pressure is its highest of 29.95inHg at 11 AM, a lowest point of 29.85inHg at 5 PM with an avg 29.9inHg.
Clinton, IL Weather – 9-4 – Sunny
94° / 78°

Weather Tomorrow

Sunny
In Clinton, bright and sunny conditions with highs near 94°F and lows around 78°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 11mph on average and gusts of 27.8mph at 5 AM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 75% at 8 AM and 40% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 11 AM, a lowest point of 29.88inHg at 5 AM with an avg 29.92inHg.
Clinton, IL Weather – 9-5 – Overcast
94° / 73°
Overcast
In Clinton, it will be overcast with highs near 94°F and lows around 73°F. The chance of rain is 76% with an estimated 0.38in. Wind will be moderate, blowing around 18mph on average and gusts of 24mph at 5 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 92% at 7 PM and 40% being its lowest at 3 PM. Barometric pressure is its highest of 29.97inHg at 10 AM, a lowest point of 29.89inHg at 3 PM with an avg 29.93inHg.
Clinton, IL Weather – 9-6 – Sunny
90° / 69°
Sunny
In Clinton, it will be sunny with highs near 90°F and lows around 69°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 11mph on average and gusts of 26.2mph at 11 PM. The humidity will be on the higher side, averaging about 76%, the maximum being 96% at 5 AM and 46% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 9 PM, a lowest point of 29.88inHg at 6 PM with an avg 29.95inHg.
Clinton, IL Weather – 9-7 – Sunny
91° / 62°
Sunny
In Clinton, it will be sunny with highs near 91°F and lows around 62°F. Rainfall predicted to have a 57% chance with an estimated 0.06in. Wind will be moderate, blowing around 12mph on average and gusts of 27.3mph at 11 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 96% at 7 AM and 45% being its lowest at 4 PM. Barometric pressure is its highest of 30.08inHg at 8 AM, a lowest point of 29.93inHg at 5 PM with an avg 30inHg.
Clinton, IL Weather – 9-8 – Overcast
98° / 77°
Overcast
It will be overcast in Clinton, with a high of 98°F and a low of 77°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 16mph on average and gusts of 34.7mph at 11 PM. Humidity levels should be comfortable, sitting around 52% on average, the maximum being 72% at 12 AM and 33% being its lowest at 4 PM. Barometric pressure is its highest of 29.98inHg at 1 AM, a lowest point of 29.88inHg at 5 PM with an avg 29.94inHg.

Currently

Clear 75°F
29.9 inHg.
Barometer
72%
Humidity
SSW 14.4 mph
Wind
Clear

5 Day Forecast Nearby

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