National Weather Service United States Department of Commerce

Lowell to Impact Hawaii; Heat Persists in the South-Central U.S.

Hurricane Lowell is forecast to pass west of Kauai`s coastal waters tonight. Impacts such as high surf and heavy rain could impact all of the islands. Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley into this week with limited nighttime relief. Periods of moderate to heavy rainfall will be possible through Tuesday morning in the northern Rockies. Read More >

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Last Map Update: Mon, Sep 7, 2026 at 2:58:11 pm PDT

A possible final hurrah from the summer heat brings widespread Moderate HeatRisk and areas of Major Heat Risk to Central California on Thursday. Valley temperatures up to 102 degrees with highs up to 75 degrees are expected, the warmest of these in urban areas and in the foothills where the thermal belt is strongest.
You’re ready for the great outdoors, but are you Weather-Ready? Be prepared for, and know how to react to, weather and water hazards such as flash flooding, excessive heat, and lightning. As always, knowing the forecast is critical to preparation too. Visit weather.gov.

 

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