Heat Wave and Severe Thunderstorms this Independence Day

A prolonged, dangerous heat wave will persist through the Independence Day weekend across the Ohio Valley, Midwest, and Mid-Atlantic. Numerous temperature records are expected. Clusters of severe thunderstorms will move across parts of the Allegheny Plateau into Mid Atlantic this Independence Day, with potential for widespread damaging winds. Additional severe thunderstorms in the Great Plains. Read More >

An arctic airmass will remain over eastern Utah and western Colorado through today (Halloween), resulting in abnormally cold temperatures. Daytime highs today will be 15 to 25 degrees below normal across the board under mostly sunny skies and dry northwest flow aloft. Be sure to bundle up during prime trick-or-treating hours this evening as temperatures drop into the mid to upper 20s and lower 30s across the southern and central valleys and into the upper teens further north between 6 and 9 PM. Another round of record cold low temperatures will occur tonight/Friday morning.

Temperatures will warm up Friday onwards.

Forecast High Temperatures Today

Forecast Low Temperatures Tonight/Friday Morning

Dressing for Cold Weather

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Heat Wave and Severe Thunderstorms this Independence Day

Record Breaking Cold Through Halloween