Tracking Severe Thunderstorms and Excessive Rainfall in the Southern U.S.; Winter Storm to Impact the Northern U.S.
A storm system will shift from eastern Texas into the lower Mississippi Valley Monday with additional threats of severe thunderstorms and heavy to excessive rainfall which may bring flooding. A Flood Watch remains in effect. In the northern U.S., a storm will bring heavy snow and gusty winds over parts of the northern Rockies, northern Plains, and Upper Midwest Monday into Wednesday. Read More >
| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 252 PM CST Sun Nov 23 2025 | |
| Tonight: Southwest winds 5 to 10 kt becoming south 10 to 15 kt after midnight. Mostly clear. Waves 1 to 2 ft. Monday: South winds 10 to 20 kt. Mostly cloudy. Waves 1 to 3 ft. Monday Night: South winds 10 to 15 kt. Rain. Waves 1 to 2 ft. Tuesday: South winds around 10 kt becoming southwest. Chance of rain in the morning, then slight chance of rain in the afternoon. Waves 1 to 2 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
Visit your local NWS office at: https://www.weather.gov/lot |