Wildfire Smoke and Severe Thunderstorms in the East; Monsoon Thunderstorms in the Southwest
Wildfire smoke continues to impact air quality from the Great Lakes region into New England and the Mid-Atlantic today with widespread Air Quality Alerts in effect. Severe thunderstorms are expected across portions of the Ohio Valley and Lower Great Lakes into the Mid-Atlantic and Northeast, this afternoon into the evening. Monsoonal thunderstorms may bring areas of flooding to the Southwest. Read More >
| NWS Forecast for: Calumet Harbor IL to Gary IN (LMZ743) Issued by: National Weather Service Chicago, IL Last Update: 954 AM CDT Sat Jul 18 2026 |  |
Rest Of Today: West winds 15 to 20 kt becoming north late. Chance of showers and thunderstorms in the afternoon. Waves 1 to 3 ft building to 2 to 4 ft. Tonight: Northeast winds 15 to 25 kt. Slight chance of showers and thunderstorms in the evening. Areas of smoke in the evening, then patchy smoke overnight. Waves 4 to 7 ft occasionally to 9 ft. Sunday: Northeast winds 10 to 15 kt. Patchy smoke. Waves 3 to 5 ft subsiding to 1 to 3 ft. Sunday Night: Northeast winds around 10 kt becoming southeast overnight. Mostly clear. Waves 1 to 2 ft. | |
| Zone Forecast: Calumet Harbor IL to Gary IN (LMZ743) | |
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