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: 322 PM CDT Wed Aug 19 2026
For More Weather Information:
10NM SW Grand Portage MN
Marine Zone Forecast
Tonight
Southwest wind 5 to 10 knots with gusts to around 20 knots becoming northwest late in the evening, then becoming northeast after midnight. Partly cloudy in the evening then becoming mostly cloudy. Waves 1 to 2 feet.
Thursday
Northeast wind 5 knots becoming east in the late morning and afternoon. Slight chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Waves 1 foot or less.
Thursday Night
Northeast wind 5 to 10 knots. Slight chance of showers and thunderstorms in the evening. Waves 1 foot or less.
Friday
Northeast wind 5 to 10 knots becoming southeast early in the afternoon, then becoming southwest late in the afternoon. Partly sunny. Waves 1 foot or less.
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