Home / Local Weather & Traffic / Illinois / Mc Cook / Weather Forecast

Mc Cook, IL Weather Tomorrow

Know what to expect with tomorrow's McCook weather and the next 5 days of forecasts covering 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 McCook area.
Updated: Mon Aug 17th 2026 6:15 PM CDT
Mc Cook, IL Weather – 8-17 – Sunny
78° / 66°
Sunny
Mc Cook could see a sunny day with daytime highs of 78°F and nighttime lows near 66°F. There might be light rainfall having a 13% chance. Winds will be light at 8mph and gusts of 9.9mph at 11 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 89% at 9 PM and 83% being its lowest at 7 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.99inHg at 9 PM with an avg 30inHg.
Mc Cook, IL Weather – 8-18 – Overcast
74° / 64°

Weather Tomorrow

Overcast
Mc Cook is set for overcast with temperatures peaking at 74°F and dipping to 64°F. There's a moderate 38% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 11mph on average and gusts of 18.3mph at 11 PM. High humidity with average of 82% is anticipated, the maximum being 93% at 11 PM and 65% being its lowest at 12 PM. Barometric pressure is its highest of 30.03inHg at 1 AM, a lowest point of 29.9inHg at 11 PM with an avg 29.98inHg.
Mc Cook, IL Weather – 8-19 – Scattered Showers
81° / 66°
Scattered Showers
Highs will reach 81°F with lows near 66°F in Mc Cook, where scattered showers are. The chance of rain is 86% with an estimated 0.43in. Winds will be light at 8mph and gusts of 22.6mph at 1 AM. High humidity with average of 81% is anticipated, the maximum being 99% at 6 AM and 56% being its lowest at 3 PM. Barometric pressure is its highest of 29.95inHg at 9 PM, a lowest point of 29.88inHg at 3 AM with an avg 29.91inHg.
Mc Cook, IL Weather – 8-20 – Sunny
83° / 66°
Sunny
Mc Cook may see sunshine, with daytime highs of 83°F and overnight lows near 66°F. There's a very small chance of rainfall, only about 5%. Winds will be light at 6mph and gusts of 10.3mph at 8 PM. Humidity levels should be comfortable, sitting around 57% on average, the maximum being 78% at 12 AM and 31% being its lowest at 2 PM. Barometric pressure is its highest of 30.05inHg at 11 PM, a lowest point of 29.95inHg at 12 AM with an avg 30inHg.
Mc Cook, IL Weather – 8-21 – Sunny
81° / 67°
Sunny
Mc Cook is set for sunshine with temperatures peaking at 81°F and dipping to 67°F. There's a moderate 37% chance of rainfall with an estimated 0.04in. Winds will be light at 10mph and gusts of 18.8mph at 3 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 84% at 11 PM and 52% being its lowest at 1 PM. Barometric pressure is its highest of 30.09inHg at 8 AM, a lowest point of 29.98inHg at 7 PM with an avg 30.04inHg.
Mc Cook, IL Weather – 8-22 – Sunny
79° / 65°
Sunny
Mc Cook is set for sunshine with temperatures peaking at 79°F and dipping to 65°F. There might be light rainfall having a 13% chance with an estimated 0in. Winds will be light at 10mph and gusts of 15.9mph at 7 AM. The humidity will be on the higher side, averaging about 77%, the maximum being 92% at 11 PM and 57% being its lowest at 1 PM. Barometric pressure is its highest of 30.02inHg at 2 AM, a lowest point of 29.96inHg at 7 PM with an avg 30inHg.

Currently

Overcast 74°F
30.01 inHg.
Barometer
79%
Humidity
WNW 4.3 mph
Wind
Overcast

5 Day Forecast Nearby

More Local Information

Bookmark and Share

Get the LocalConditions.com App on Google Play
Sign up for a membership to go Ad free

McCook Community Weather Reports

Write your own McCook, IL report, forecast, or traffic update:


Will not be posted, shared or used for marketing!

Please note by clicking on "Post" you acknowledge that you have read our Privacy Policy and Terms of Service and the McCook, IL report and/or forecast you are posting is in compliance with such terms. If you are under 18, do not submit this form. Be respectful! Inappropriate content will be removed by a moderator.