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Chalk Reservoir, AZ Weather Forecast
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Chalk Reservoir Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | SATURDAY | SUNDAY |
 |  |  | | | |  |  | | | | |
| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Clear | Sunny | Clear | Clear | Clear | Clear |
| Lo: 71°FLo: 22°C | Hi: 85°FHi: 29°C | Lo: 66°FLo: 19°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 78°FHi: 26°C | Lo: 61°FLo: 16°C | Hi: 84°FHi: 29°C | Hi: 84°FHi: 29°C Lo: 64°FLo: 18°C | Hi: 84°FHi: 29°C Lo: 64°FLo: 18°C | Hi: 84°FHi: 29°C Lo: 64°FLo: 18°C | Hi: 84°FHi: 29°C Lo: 64°FLo: 18°C |
| POP: 10% | POP: 50% | POP: 50% | POP: 10% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1138 PM MST Sun Sep 27 2026 
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Chalk Reservoir Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 354 PM MST Sun Sep 27 2026
Discussion
... Forecast remains on track with little to no changes overall. Any changes are related to the details and scenarios, which are coming into better focus as much of the event is captured in the CAMs. Flash Flood Watch remains in effect with no planned changes to the time.
The first change is a possible earlier start time to some of the precip. Some CAMs are showing scattered showers with isolated thunderstorms by Monday morning, increasing in coverage through the day. The second change ...