Blue Island, IL Weather Tomorrow

Looking for tomorrow's weather in Blue Island? Explore a complete 5 day forecast featuring 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 Blue Island area and around Cook county, Illinois.
Updated: Fri Sep 11th 2026 4:15 AM CDT
Blue Island, IL Weather – 9-11 – Sunny
81° / 58°
Sunny
Highs will reach 81°F with lows near 58°F in Blue Island, where sunshine is. There's a very small chance of rainfall, only about 4%. Winds will be light at 5mph and gusts of 14.8mph at 11 PM. The humidity will be on the higher side, averaging about 61%, the maximum being 80% at 7 AM and 31% being its lowest at 1 PM. Barometric pressure is its highest of 30.03inHg at 5 AM, a lowest point of 29.91inHg at 10 PM with an avg 29.97inHg.
Blue Island, IL Weather – 9-12 – Sunny
85° / 67°

Weather Tomorrow

Sunny
Blue Island is set for a sunny day with temperatures peaking at 85°F and dipping to 67°F. There's a very small chance of rainfall, only about 6%. Winds will be light at 10mph and gusts of 17.4mph at 2 AM. The humidity will be on the higher side, averaging about 66%, the maximum being 90% at 7 AM and 43% being its lowest at 4 PM. Barometric pressure is its highest of 29.92inHg at 11 PM, a lowest point of 29.84inHg at 4 PM with an avg 29.89inHg.
Blue Island, IL Weather – 9-13 – Overcast
75° / 66°
Overcast
Daytime highs will reach 75°F with lows dropping to 66°F in Blue Island, where skies will be overcast. Rainfall predicted to have a 67% chance with an estimated 0.12in. Wind will be moderate, blowing around 11mph on average and gusts of 17mph at 11 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 90% at 6 AM and 49% being its lowest at 5 PM. Barometric pressure is its highest of 30.12inHg at 9 PM, a lowest point of 29.93inHg at 12 AM with an avg 30.03inHg.
Blue Island, IL Weather – 9-14 – Overcast
77° / 62°
Overcast
In Blue Island, cloud-filled skies are likely with a high near 77°F and a low around 62°F. Rainfall predicted to have a 57% chance with an estimated 0.05in. Wind will be moderate, blowing around 12mph on average and gusts of 35.1mph at 10 PM. The humidity will be on the higher side, averaging about 69%, the maximum being 81% at 10 PM and 56% being its lowest at 10 AM. Barometric pressure is its highest of 30.17inHg at 8 AM, a lowest point of 29.9inHg at 11 PM with an avg 30.07inHg.
Blue Island, IL Weather – 9-15 – Scattered Showers
87° / 72°
Scattered Showers
On and off showers are set to occur in Blue Island, with a high of 87°F and a low of 72°F. Rainfall predicted to have a 64% chance with an estimated 0.12in. Wind will be moderate, blowing around 14mph on average and gusts of 39.8mph at 2 AM. The humidity will be on the higher side, averaging about 69%, the maximum being 94% at 11 PM and 49% being its lowest at 12 PM. Barometric pressure is its highest of 30.03inHg at 11 PM, a lowest point of 29.88inHg at 1 AM with an avg 29.97inHg.
Blue Island, IL Weather – 9-16 – Light Rain Shower
72° / 63°
Light Rain Shower
Blue Island could see rain showers with daytime highs of 72°F and nighttime lows near 63°F. The chance of rain is 92% with an estimated 0.37in. Winds will be light at 10mph and gusts of 20.1mph at 7 PM. High humidity with average of 94% is anticipated, the maximum being 98% at 7 AM and 89% being its lowest at 3 PM. Barometric pressure is its highest of 30.19inHg at 8 PM, a lowest point of 30.04inHg at 1 AM with an avg 30.13inHg.

Currently

Clear 60°F
30.02 inHg.
Barometer
81%
Humidity
SE 4 mph
Wind
Clear

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