Active Weather Alerts
Extreme Heat Warning
Issued: 4:49 PM Jul. 12, 2026 – National Weather Service
...EXTREME HEAT WARNING REMAINS IN EFFECT UNTIL 6 AM MDT MONDAY... * WHAT...Dangerously hot conditions expected, with highs around 100 possible for most central and southern Utah valleys and up to 110 for Lower Washington County, Zion Canyon, and the Glen Canyon Recreation Area. * WHERE...Western Millard and Juab Counties, Capitol Reef National Park and Vicinity, Glen Canyon Recreation Area/Lake Powell, South Central Utah, Western Canyonlands, and Southwest Utah. * WHEN...Until 6 AM MDT Monday. * IMPACTS...Heat related illnesses increase significantly during extreme heat events. * ADDITIONAL DETAILS...There is high confidence that temperatures will warm to values challenging daily and monthly high temperature records Sunday. Overnight lows in the lower to mid 70s for many valley locations, except low 80s for lower Washington County, will provide little in the way of overnight relief. PRECAUTIONARY/PREPAREDNESS ACTIONS... Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes. Take extra precautions when outside. Wear lightweight and loose fitting clothing. Try to limit strenuous activities to early morning or evening. Take action when you see symptoms of heat exhaustion and heat stroke. To reduce risk during outdoor work, the Occupational Safety and Health Administration recommends scheduling frequent rest breaks in shaded or air conditioned environments. Anyone overcome by heat should be moved to a cool and shaded location. Heat stroke is an emergency! Call 9 1 1. &&
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