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Lake Arrowhead Weather Forecast
| OVERNIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
 |  | | | |  |  | | | | | |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Mostly Clear | Clear | Clear | Mostly Clear | Mostly Clear |
| Lo: 70°FLo: 21°C | Hi: 75°FHi: 24°C | Lo: 75°FLo: 24°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C Lo: 65°FLo: 18°C |
| POP: 50% | POP: 90% | POP: 90% | POP: 90% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 820 PM EDT Fri Oct 09 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 826 PM EDT Fri Oct 9 2026
Key Messages
1) Heavy rain will develop during Saturday and persist at times into Sunday morning. A few areas could see flash flooding as a result, especially across coastal areas. Isolated tornadoes are possible Saturday night into early Sunday.
2) Hazardous surf conditions and minor coastal flooding are likely this weekend.
3) Hazardous marine conditions are likely this weekend.
Discussion
... KEY MESSAGE 1...Heavy rain will develop during Saturday and persist at times into Sunday morning. A few ar...