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Cook, IN Weather Forecast
Cook, IN Weather Forecast Date: 201 AM CST Tue Nov 03 2026
The area/counties/county of: Lake County In, including the cities of: Gary, Hammond, and Merrillville.or toggle through each period.
Early This Morning... Mostly cloudy. Temperatures in the lower 60s. South winds 10 to 15 mph with gusts up to 25 mph.
Today... Mostly cloudy. A slight chance of showers late. Breezy. Highs in the lower 70s. South winds 15 to 20 mph with gusts up to 35 mph. Chance of precipitation 20%.
Tonight... Mostly cloudy. A chance of showers in the evening, then showers after midnight. Breezy with lows in the lower 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of precipitation 80%.
Wednesday... Mostly cloudy. A chance of showers early in the morning, then showers likely late in the morning. A slight chance of showers early in the afternoon. Breezy with highs in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 30 mph. Chance of precipitation 60%.
Wednesday Night... Mostly cloudy. Lows in the upper 40s. Southwest winds 10 to 15 mph. Gusts up to 25 mph in the evening.
Thursday... Partly cloudy. Highs in the lower 60s. Southwest winds 10 to 15 mph.
Thursday Night... Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 40s. Chance of precipitation 20%.
Friday... Mostly cloudy with a 50% chance of showers. Highs in the mid 50s.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows around 40.
Saturday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 50s.
Saturday Night... Mostly cloudy. Lows in the mid 30s.
Sunday... Partly cloudy in the morning, then becoming mostly cloudy. Highs in the mid 50s.
Sunday Night... Partly cloudy. Lows in the mid 30s.
POP = Probability of Precipitation
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