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City of San Luis, AZSan Luis, AZ Weather Forecast
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San Luis Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY |
 |  | | | | | | | | |  |  |
| Clear | Sunny | Clear | Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Clear | Mostly Sunny | Partly Cloudy | Partly Sunny |
| Lo: 58°FLo: 14°C | Hi: 79°FHi: 26°C | Lo: 60°FLo: 16°C | Hi: 82°FHi: 28°C | Lo: 61°FLo: 16°C | Hi: 83°FHi: 28°C | Lo: 63°FLo: 17°C | Hi: 87°FHi: 31°C | Lo: 64°FLo: 18°C | Hi: 87°FHi: 31°C | Lo: 64°FLo: 18°C | Hi: 83°FHi: 28°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 400 PM MST Thu Oct 22 2026 
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Issued: 425 PM MST Thu Oct 22 2026
Key Messages
- Thunderstorms capable of severe weather and flooding will exit through eastern Arizona this evening with drier air surging into the region.
- More benign weather conditions will filter into the area Friday and through the weekend with only a few lingering showers over mountain locations in Arizona.
- Below normal temperatures through early next week will warm closer to the seasonal average by the middle of next week.
Aviation
...Updated at 2325Z.
South Central Arizona including KPHX, KIWA, ...