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Canyon Lake Upper Weather Forecast
| TODAY | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
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| Sunny | Mostly Clear | Sunny | Clear | Sunny | Clear | Sunny | Clear | Sunny | Clear | Sunny | Partly Cloudy |
| Hi: 80°FHi: 27°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C | Lo: 45°FLo: 7°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C | Hi: 75°FHi: 24°C | Lo: 45°FLo: 7°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 607 AM CDT Tue Oct 20 2026 
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Issued: 621 AM CDT Tue Oct 20 2026
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Issued at 619 AM CDT TUE OCT 20 2026- Seasonable Weather: Seasonable temperatures are expected for most of the next seven days.
Discussion
... (Tuesday through next Monday) Issued at 1052 PM CDT MON OCT 19 2026
Dry northwest to northerly flow aloft persists through the week, between ridging over the Southern Plains and troughing along the East Coast. At the surface, high pressure over the eastern CONUS maintains a dry continental air mass, while a surface low moves slowly northeastward o...