Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley
Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >
| NWS Forecast for: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878) Issued by: National Weather Service Grand Rapids, MI Last Update: 251 PM CDT Sun Jul 26 2026 |  |
Tonight: South winds 10 to 20 kt becoming southwest 10 to 15 kt. Patchy dense fog this evening. Chance of showers this evening, then chance of showers and thunderstorms overnight. Waves 1 to 3 ft. Monday: Southwest winds 10 to 20 kt becoming south. Showers likely with a chance of thunderstorms in the morning, then slight chance of showers and thunderstorms in the afternoon. Waves 2 to 4 ft. Monday Night: Southwest winds 10 to 20 kt veering to northwest late in the evening, then becoming north to 30 kt overnight. Chance of showers and thunderstorms in the evening. Waves 2 to 4 ft building to 5 to 8 ft occasionally to 10 ft. Tuesday: North winds to 30 kt. Waves 6 to 9 ft occasionally to 12 ft building to 8 to 11 ft occasionally to 14 ft. Tuesday Night: North gales to 35 kt diminishing to 10 to 20 kt overnight. Waves 8 to 11 ft occasionally to 14 ft subsiding to 5 to 8 ft occasionally to 10 ft. Wednesday: North winds 10 to 20 kt increasing to 30 kt in the afternoon. Waves 3 to 5 ft subsiding to 2 to 4 ft. Wednesday Night: North winds 15 to 25 kt becoming northeast 5 to 10 kt. Waves 2 to 4 ft. Thursday: Southeast winds 5 to 10 kt becoming south. Waves 1 to 2 ft. Friday: Southwest winds 10 to 15 kt becoming south. Waves 1 to 2 ft. | |
| Zone Forecast: Lake Michigan from St Joseph to South Haven MI 5NM offshore to Mid Lake (LMZ878) | |
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