Tucson, Ariz. – Drivers across southern Arizona should brace for dangerous heat near 100 degrees and a chance of thunderstorms Friday, September 12. The mix of scorching sun and scattered storms may bring sudden delays on I-10 and local highways, particularly during afternoon travel. Residents are urged to stay hydrated, avoid outdoor work during peak heat, and monitor storm activity if planning evening events.
According to the National Weather Service in Tucson, storm chances rise to 20 percent by Friday afternoon, with gusty winds possible near cells. Overnight lows will remain in the lower 70s, offering little overnight relief. The weekend looks more stable, though Saturday and Sunday still bring highs in the upper 90s. Breezy conditions could make fire danger a secondary concern in drier areas.
Tucson International Airport is expected to reach 98°F Friday, while surrounding communities like Marana and Oro Valley may see similar readings. Southeast winds may increase in the afternoon, creating dusty stretches along rural roadways. Emergency managers recommend drivers keep extra water in vehicles and avoid flooded crossings if storms form.
Saturday offers more sunshine with highs near 97°F, while Sunday reaches 98°F before cooling slightly early next week. By Tuesday, highs will hold closer to the mid-90s with occasional storm chances, marking the first hints of a seasonal shift.
Warnings remain in effect for heat and potential storms through Friday evening, and more advisories may be issued if thunderstorm coverage expands.
Five-Day Forecast for Tucson, Arizona:
- Friday: High 98°F, 20% chance of afternoon storms, breezy.
- Saturday: Sunny, high 97°F, clear overnight.
- Sunday: High 98°F, mostly sunny, lows near 74°F.
- Monday: High 99°F, isolated storms possible in afternoon.
- Tuesday: High 97°F, partly cloudy, 20% storm chance.
