By admin 
TUCSON, Ariz. (13 News) – Today and tomorrow are First Alert Weather Days due to dangerous heat across the region. An Extreme Heat Warning is in effect from 10 AM today through 8 PM Saturday, with highs forecast between 105–110° and little overnight relief. An Air Quality Alert is also in place for Metro Tucson, Marana, and Oro Valley due to high ozone levels; anyone with asthma or respiratory issues should limit time outdoors.
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Isolated showers and thunderstorms are possible east and south of Tucson today. Storm chances increase over the next few days, with the most active period expected Saturday through Tuesday. Stay tuned for potential impacts and stay weather-aware for both the extreme heat and the upcoming storms.
FIRST ALERT 7-DAY FORECAST:
Today – Sunny and hot, with a high near 108. Calm wind becoming west northwest around 6 mph in the afternoon.
Tonight – Partly cloudy, with a low around 84.
Saturday – Sunny and hot, with a high near 109. 20% chance for rain.
Saturday Night – A 20 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 81. 40% chance for rain.
Sunday – Mostly sunny and hot, with a high near 104. 20% chance for rain.
Sunday Night – A 40 percent chance of showers and thunderstorms before 11pm. Mostly cloudy, with a low around 80.
Monday – A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 99.
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Monday Night – A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 78.
Tuesday – A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 99.
Tuesday Night – A 10 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 79.
Wednesday – A 10 percent chance of showers and thunderstorms. Partly sunny, with a high near 102.
Wednesday Night – A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 79.
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Thursday – Sunny, with a high near 104.