Thursday’s Tucson Forecast: Increasing heat, decreasing storm chances




Today – 10% chance of storms, hot. 100°, west wind 10-15 MPH.

Tonight – Mostly clear. 77°, southeast wind 5 MPH.

Tomorrow – 20% chance of storms, hot. 102°, northwest wind 10 MPH.



A downturn in thunderstorm development heading into the holiday weekend.

High pressure draws in slightly drier air from New Mexico. This keeps thunderstorm activity isolated the next few afternoons. Expect a 10% chance of storms in Tucson today, with a better chance along the International Border and White Mountains. As a result of drier air moving in, highs today reach the 100s for the 26th time this year.

Today’s Monsoon Prediction Index is 2 out of 10 for Tucson, indicating a low storm risk.

There is a 20% chance of storms Friday and the 4th of July in the Old Pueblo. Evening hours look mainly dry for fireworks across southern Arizona Saturday evening.

Models continue to show an upswing in storm development early next week as deeper moisture enters from the south. A 40% chance of storms is possible Sunday and Monday with highs dropping below the century mark.


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