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Colusa, IL Weather Tomorrow

Need tomorrow's weather for Colusa? This 5 day forecast provides 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 Colusa area and around Hancock county, Illinois.
Updated: Mon Sep 7th 2026 3:00 PM CDT
Colusa, IL Weather – 9-7 – Sunny
86° / 62°
Sunny
Colusa is set for sunshine with temperatures peaking at 86°F and dipping to 62°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 14mph on average and gusts of 30.4mph at 11 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 66% at 11 PM and 30% being its lowest at 4 PM. Barometric pressure is its highest of 30.06inHg at 9 PM, a lowest point of 30.03inHg at 4 PM with an avg 30.04inHg.
Colusa, IL Weather – 9-8 – Overcast
98° / 64°

Weather Tomorrow

Overcast
Skies will be overcast in Colusa, with a high of 98°F and a low of 64°F. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 15mph on average and gusts of 32.1mph at 10 PM. Humidity levels should be comfortable, sitting around 49% on average, the maximum being 82% at 5 AM and 24% being its lowest at 4 PM. Barometric pressure is its highest of 30.08inHg at 7 AM, a lowest point of 29.9inHg at 6 PM with an avg 30inHg.
Colusa, IL Weather – 9-9 – Scattered Showers
86° / 71°
Scattered Showers
Colusa could see passing showers with daytime highs of 86°F and nighttime lows near 71°F. Rainfall predicted to have a 72% chance with an estimated 0.1in. Wind will be moderate, blowing around 16mph on average and gusts of 37.2mph at 12 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 92% at 11 PM and 35% being its lowest at 12 AM. Barometric pressure is its highest of 30.02inHg at 1 PM, a lowest point of 29.91inHg at 6 PM with an avg 29.96inHg.
Colusa, IL Weather – 9-10 – Sunny
84° / 67°
Sunny
Colusa may see sunshine, with daytime highs of 84°F and overnight lows near 67°F. There might be light rainfall having a 21% chance with an estimated 0.01in. Winds will be light at 9mph and gusts of 13.2mph at 11 PM. The humidity will be on the higher side, averaging about 65%, the maximum being 95% at 5 AM and 27% being its lowest at 4 PM. Barometric pressure is its highest of 29.99inHg at 9 PM, a lowest point of 29.89inHg at 6 PM with an avg 29.94inHg.
Colusa, IL Weather – 9-11 – Overcast
89° / 62°
Overcast
In Colusa, cloud-filled skies are likely with a high near 89°F and a low around 62°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 15mph on average and gusts of 30.3mph at 8 AM. Humidity levels should be comfortable, sitting around 55% on average, the maximum being 77% at 7 AM and 35% being its lowest at 4 PM. Barometric pressure is its highest of 29.97inHg at 12 AM, a lowest point of 29.78inHg at 7 PM with an avg 29.88inHg.
Colusa, IL Weather – 9-12 – Sunny
89° / 68°
Sunny
Colusa is set for a sunny day with temperatures peaking at 89°F and dipping to 68°F. There's a very small chance of rainfall, only about 4%. Winds will be light at 10mph and gusts of 25.7mph at 12 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 76% at 1 AM and 38% being its lowest at 4 PM. Barometric pressure is its highest of 29.95inHg at 11 PM, a lowest point of 29.85inHg at 4 AM with an avg 29.89inHg.

Currently

Sunny 86°F
30.04 inHg.
Barometer
35%
Humidity
ESE 17.6 mph
Wind
Sunny

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