Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation
Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >
| NWS Forecast for: Winthrop Harbor to Wilmette Harbor IL (LMZ740) Issued by: National Weather Service Chicago, IL Last Update: 1009 AM CDT Sat Aug 29 2026 |  |
Rest Of Today: Southwest winds around 10 kt becoming south 10 to 20 kt. Slight chance of showers in the afternoon. Waves 1 to 3 ft. Tonight: South winds 15 to 20 kt. Slight chance of showers. Waves 1 to 3 ft building to 2 to 4 ft. Sunday: South winds 15 to 25 kt becoming southwest. Chance of showers and slight chance of thunderstorms in the morning. Waves 2 to 4 ft subsiding to 1 to 3 ft in the afternoon. Sunday Night: Southwest winds 15 to 20 kt diminishing to 10 to 15 kt. Slight chance of showers overnight. Waves 1 to 3 ft. | |
| Zone Forecast: Winthrop Harbor to Wilmette Harbor IL (LMZ740) | |
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