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Gary, IN Weather Forecast
Gary, IN Weather Forecast Date: 401 AM CDT Mon Sep 14 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... Clear. Temperatures in the lower 50s. North winds around 5 mph.
Today... Mostly sunny in the morning, then becoming partly cloudy. Highs in the mid 70s. Southeast winds 5 to 10 mph, increasing to 10 to 15 mph in the afternoon.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 60s. South winds 10 to 15 mph. Gusts up to 25 mph after midnight.
Tuesday... Mostly cloudy in the morning, then becoming partly cloudy. A chance of showers in the morning. A chance of thunderstorms. Showers likely in the afternoon. More humid with highs in the mid 80s. Southwest winds 10 to 15 mph, becoming west 5 to 10 mph in the afternoon. Chance of precipitation 60%.
Tuesday Night... Showers likely with a chance of thunderstorms. Humid with lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70%.
Wednesday... Mostly cloudy. Showers likely in the morning, then a chance of showers with a slight chance of thunderstorms in the afternoon. Humid with highs in the upper 70s inland, but only in the lower 70s near the lake. Northeast winds around 5 mph. Chance of precipitation 70%.
Wednesday Night... Mostly cloudy with a chance of showers. A slight chance of thunderstorms after midnight. Near steady temperature around 70. Chance of precipitation 50%.
Thursday... Mostly cloudy. A chance of showers in the morning, then a slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Chance of precipitation 50%.
Thursday Night... Mostly cloudy. Lows in the mid 60s.
Friday... Mostly cloudy. Highs around 80.
Friday Night... Mostly cloudy. A chance of showers after midnight. Lows in the mid 60s. Chance of precipitation 50%.
Saturday... Mostly cloudy with a chance of showers. Highs in the upper 70s. Chance of precipitation 50%.
Saturday Night... Mostly cloudy with a chance of showers. Lows in the lower 60s. Chance of precipitation 50%.
POP = Probability of Precipitation
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