Weather WorldMount Signal, CA Weather Forecast
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Mount Signal Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  | | | | | | | | | |  |
| Mostly Sunny | Clear | Sunny | Mostly Clear | Mostly Sunny | Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Partly Cloudy |
| Hi: 90°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 67°FLo: 19°C | Hi: 81°FHi: 27°C | Lo: 62°FLo: 17°C | Hi: 80°FHi: 27°C | Lo: 64°FLo: 18°C | Hi: 83°FHi: 28°C | Lo: 63°FLo: 17°C | Hi: 83°FHi: 28°C | Lo: 65°FLo: 18°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1216 PM PDT Tue Oct 20 2026 
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Issued: 100 PM MST Tue Oct 20 2026
Key Messages
- A Pacific low pressure system will bring multiple rounds of showers and thunderstorms, mainly across central and eastern Arizona, Wednesday and Thursday.
- A Flood Watch is in effect across much of south-central and eastern Arizona from Wednesday afternoon through Thursday evening for periods of moderate to heavy rainfall leading to flash flooding.
- Quieter weather is expected beginning Friday and lasting through the upcoming weekend.
Aviation
...Updated at 1825Z.
South Central Arizona inc...