Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics
Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >
| NWS Forecast for: St Joseph to South Haven MI (LMZ844) Issued by: National Weather Service Grand Rapids, MI Last Update: 936 AM EDT Mon Aug 31 2026 | |
| Rest Of Today: South winds 15 to 20 knots. Partly sunny. Scattered rain showers and isolated thunderstorms late in the morning, then scattered rain showers in the afternoon. Waves 1 to 3 feet. Tonight: Southwest winds 10 to 15 knots. Partly cloudy. Waves 1 to 3 feet. Tuesday: Southwest winds 10 to 15 knots. Mostly sunny with a slight chance of showers and thunderstorms. Waves around 1 foot. Tuesday Night: Southwest winds around 10 knots. Partly cloudy with a slight chance of showers and thunderstorms. Waves 1 foot or less. Wednesday: Southwest winds around 10 knots. Mostly sunny. Waves 1 foot or less. Thursday: Southeast winds 5 to 10 knots veering northwest in the late morning and afternoon. Partly sunny with a chance of showers and thunderstorms. Waves around 1 foot. Friday: Northeast winds 5 to 10 knots backing north early in the afternoon. Mostly sunny. Waves less than 1 foot. | |
| Zone Forecast: St Joseph to South Haven MI (LMZ844) | |
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