Weather World
St. Mary's School, IN 7-Day Night Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Weather Quote O' the Day
St. Mary's School, IN Weather Forecast
St. Mary's School, IN Weather Forecast Date: 756 AM CDT Fri Aug 07 2026
The area/counties/county of: Lake County In, including the cities of: Gary, Hammond, and Merrillville.or toggle through each period.
Today... Mostly cloudy in the morning, then becoming partly cloudy. Widespread fog early in the morning. A slight chance of showers and thunderstorms late in the morning. Highs in the lower 80s. South winds around 5 mph. Chance of precipitation 20%.
Tonight... Partly cloudy in the evening, then becoming mostly cloudy. A slight chance of showers and thunderstorms. Humid with lows in the upper 60s. Southwest winds around 5 mph. Chance of precipitation 20%.
Saturday... Mostly cloudy in the morning, then clearing. Humid with highs in the lower 80s inland, but only in the upper 70s near the lake. Northwest winds 5 to 10 mph.
Saturday Night... Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. West winds around 5 mph, becoming south after midnight.
Sunday... Mostly cloudy. A slight chance of thunderstorms in the morning. A chance of showers. A chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. South winds 5 to 10 mph. Chance of precipitation 50%.
Sunday Night... Mostly cloudy with a chance of showers and thunderstorms. Lows in the upper 60s. Chance of precipitation 50%.
Monday... Mostly cloudy. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of precipitation 50%.
Monday Night... Mostly cloudy with a chance of thunderstorms. Showers likely, mainly in the evening. Lows in the upper 60s. Chance of precipitation 70%.
Tuesday... Mostly cloudy with a chance of showers and thunderstorms. Highs in the lower 80s. Chance of precipitation 50%.
Tuesday Night... Mostly cloudy. Showers likely with a chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the mid 60s. Chance of precipitation 60%.
Wednesday... Mostly cloudy with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of precipitation 50%.
Wednesday Night... Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the lower 60s. Chance of precipitation 30%.
POP = Probability of Precipitation
St. Mary's School Radar Loop
Use the map search tool if you want to place a location marker on the radar map...