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NWS Tucson Arizona

Weather Forecast Office

NWS Forecast Office Tucson, AZ

Weather.gov > NWS Tucson Arizona
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Last Map Update: Wed, Jun 24, 2026 at 11:50:39 am MST

What is Major HeatRisk
Extreme Heat Warning (Today thru Thursday)
Heat Illness Signs
There will be areas of major HeatRisk over the next few days. But what does that mean for you? See the above for info and actions to take.
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☀️🌡️The Extreme Heat Warning has been extended and is in effect now through Thursday evening. Be aware of the signs of heat illness, check in on vulnerable populations, stay hydrated, and take breaks in shade/air conditioning often.
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Learn the signs of heat exhaustion and heat stroke as well as how to act when you see them.
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