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Tucson High School Weather Forecast
| TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Clearing | Mostly Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Partly Cloudy | Mostly Clear | Mostly Clear |
| Hi: 83°FHi: 28°C | Lo: 68°FLo: 20°C | Hi: 88°FHi: 31°C | Lo: 71°FLo: 22°C | Hi: 93°FHi: 34°C | Lo: 71°FLo: 22°C | Hi: 94°FHi: 34°C | Lo: 70°FLo: 21°C | Hi: 93°FHi: 34°C | Lo: 71°FLo: 22°C | Hi: 93°FHi: 34°C Lo: 70°FLo: 21°C | Hi: 93°FHi: 34°C Lo: 70°FLo: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 329 AM MST Wed Sep 16 2026 
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Issued: 309 AM MST Wed Sep 16 2026
Discussion
...A very moist atmosphere for mid-September is in place awaiting the dynamics from a small upper low that was south of Hermosillo, MX this morning. This feature will swing north across the area today bringing moderate to heavy rainfall to portions of southeast Arizona and the increased chances for flash flooding due to moist antecedent conditions. A Flash Flood Watch is in effect until 11 pm tonight.
Satellite imagery showed southerly flow across the area which continues to slowly incr...