Heat Persists in the South Central U.S. and Southwest; Heavy rains in the Desert Southwest and Central Plains

Sweltering heat remains across the South-Central Plains, Lower/Middle Mississippi Valley, and the Southwest this week with limited nighttime relief. Thunderstorms will bring heavy rainfall leading to localized flash flooding in portions of the Desert Southwest and central Plains. Isolated strong to severe thunderstorms are possible across portions of the central Plains into the Northeast. Read More >

Last Update: 416 AM EDT Wed Sep 9 2026

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Grand Rapids, MI Local Forecast Office

12NM SSW Pentwater MI

Marine Zone Forecast

Rest Of Tonight
Southwest winds 20 to 25 knots. Rain showers likely and a chance of thunderstorms. Waves 3 to 5 feet.
Wednesday
Southwest winds 15 to 25 knots. Rain showers and a chance of thunderstorms. Waves 4 to 6 feet.
Wednesday Night
Southwest winds 15 to 20 knots veering northwest in the late evening and overnight. Partly cloudy. Waves 2 to 4 feet.
Thursday
Northwest winds 10 to 20 knots. Mostly sunny. Waves 2 to 4 feet subsiding to 1 to 3 feet in the late morning and afternoon.
Thursday Night
North winds 5 to 15 knots veering southeast in the late evening and overnight. Mostly clear. Waves around 1 foot.
Friday
South winds 10 to 20 knots. Sunny. Waves 2 to 4 feet.
Saturday
Southwest winds 15 to 25 knots. Partly sunny. Waves 4 to 6 feet.
Sunday
North winds 10 to 15 knots backing northwest early in the afternoon. Partly sunny. Waves 1 to 3 feet.



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416 AM EDT Wed Sep 9 2026
 
 

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