Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Last Update: 603 AM EDT Wed Aug 19 2026

View Nearby Observations

For More Weather Information:

Grand Rapids, MI Local Forecast Office

11NM SSW Grand Haven MI

Marine Zone Forecast

Today
North winds 10 to 15 knots. Mostly sunny. Waves 2 to 4 feet.
Tonight
North winds 10 to 15 knots veering northeast 5 to 10 knots in the late evening and overnight. Partly cloudy. Waves around 1 foot.
Thursday
East winds 5 to 10 knots backing northwest early in the afternoon. Sunny. Waves less than 1 foot.
Thursday Night
Northwest winds 5 to 15 knots backing south in the late evening and overnight. Partly cloudy. Waves 1 foot or less.
Friday
South winds 10 to 20 knots. Partly sunny. Waves 1 to 3 feet.
Saturday
Northwest winds 15 to 20 knots. Mostly sunny with a chance of rain showers. Waves 2 to 4 feet.
Sunday
Northwest winds 15 to 25 knots increasing to 30 knots early in the afternoon. Sunny. Waves 3 to 5 feet.



Basemap Options
Click map to change the forecast location
Loading map...
603 AM EDT Wed Aug 19 2026
 
 

RADAR & SATELLITE IMAGES

Link to Local Radar Data Link to Satellite Data