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Cook, IN Weather Forecast
Cook, IN Weather Forecast Date: 851 PM CST Thu Nov 05 2026
The area/counties/county of: Lake County In, including the cities of: Gary, Hammond, and Merrillville.or toggle through each period.
Tonight... Cloudy. Drizzle and periods of showers in the evening, then areas of drizzle after midnight. Lows around 40. Northwest winds 10 to 15 mph with gusts up to 25 mph. Chance of precipitation 90%.
Friday... Mostly cloudy. Highs in the upper 40s. Northwest winds 15 to 20 mph with gusts up to 25 mph.
Friday Night... Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 30s. Northwest winds 10 to 15 mph, diminishing to 5 to 10 mph after midnight.
Saturday... Partly cloudy. Highs in the lower 50s. Northwest winds 5 to 10 mph.
Saturday Night... Mostly clear. Lows in the mid 30s. West winds around 5 mph.
Sunday... Mostly sunny. Highs in the upper 50s.
Sunday Night... Clear. Lows in the mid 30s.
Monday... Mostly sunny. Highs in the mid 60s.
Monday Night... Clear. Lows in the lower 40s.
Tuesday... Sunny. Highs around 60.
Tuesday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the mid 30s.
Veterans Day... Partly cloudy in the morning, then clearing. Highs in the upper 50s.
Wednesday Night... Partly cloudy. Lows in the upper 30s.
POP = Probability of Precipitation
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