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Halfmoon Bay Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
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| Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Mostly Clear | Mostly Sunny | Mostly Clear |
| Hi: 80°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Hi: 75°FHi: 24°C Lo: 59°FLo: 15°C |
| POP: 50% | POP: 50% | POP: 50% | POP: 50% | POP: 20% | POP: 20% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 536 AM CDT Sat Oct 31 2026 
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Issued: 552 AM CDT Sat Oct 31 2026
Key Messages
Updated at 527 AM CDT Sat Oct 31 2026- Wind speeds will remain in the 15 to 20 knot range mainly over open gulf waters keeping small craft headlines posted in addition this will help to create minor coastal flooding along sections of the Mississippi and Louisiana gulf coasts during high tide times each day through the weekend. A coastal flood advisory is in effect for locations expected to get minor coastal flooding.
- Rain returns to the area today with the best chance of rain likely t...