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Sweetwater Park, AZ Weather Forecast
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Sweetwater Park Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  | | |  | |  |  | |  | | |
| Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Chance of T-Storm | Partly Sunny |
| Lo: 87°FLo: 31°C | Hi: 110°FHi: 43°C | Lo: 87°FLo: 31°C | Hi: 109°FHi: 43°C | Lo: 88°FLo: 31°C | Hi: 109°FHi: 43°C | Lo: 86°FLo: 30°C | Hi: 109°FHi: 43°C | Lo: 87°FLo: 31°C | Hi: 109°FHi: 43°C | Lo: 86°FLo: 30°C | Hi: 108°FHi: 42°C |
| POP: 20% | POP: 10% | POP: 10% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1231 AM MST Tue Aug 18 2026 
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Sweetwater Park Forecast Discussion
Issued: 358 AM MST Tue Aug 18 2026
Key Messages
.- Temperatures will remain several degrees above daily normals this week with lower desert highs between 107-113 degrees and overnight lows in the mid 80s to low 90s.
- Extreme Heat Warnings are in effect through Friday evening due to widespread major HeatRisk.
- Thunderstorm activity is expected to increase through mid-week with chances returning to the south-central Arizona lower deserts as early as Wednesday.
Aviation
...Updated at 0900Z.
South Central Arizo...