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Ritter School Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  | |  |  | |  |  |  | | | |
| Sunny | Chance of T-Storm | Mostly Sunny | Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Chance of T-Storm |
| Hi: 101°FHi: 38°C | Lo: 79°FLo: 26°C | Hi: 101°FHi: 38°C | Lo: 80°FLo: 27°C | Hi: 100°FHi: 38°C | Lo: 80°FLo: 27°C | Hi: 103°FHi: 39°C | Lo: 81°FLo: 27°C | Hi: 103°FHi: 39°C | Lo: 82°FLo: 28°C | Hi: 104°FHi: 40°C | Lo: 82°FLo: 28°C |
| POP: 10% | POP: 20% | POP: 10% | POP: 20% | POP: 10% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 AM MST Thu Sep 03 2026 
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Issued: 450 AM MST Thu Sep 3 2026
Key Messages
- Isolated showers and thunderstorms will be possible across South Central Arizona late this afternoon.
- Tropical moisture will arrive into the region tonight into Friday, further increasing rain chances mainly across the foothills and high terrain areas east of Phoenix before chances shift into Southwest Arizona and Southeast California this weekend.
- Temperatures remain in a near to below normal category for the rest of this week and into the weekend, resulting in widespread Minor Heat...