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Belfast Muni Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  |  | |  | | |  | |  |  |
| Partly Sunny | Chance of Showers | Chance of T-Storm | Chance of Showers | Mostly Cloudy | Partly Cloudy | Partly Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Mostly Sunny | Mostly Clear |
| Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C |
| POP: 50% | POP: 70% | POP: 50% | POP: 30% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 801 AM EDT Sun Aug 16 2026 
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Issued: 636 AM EDT Sun Aug 16 2026
Key Messages
1. High pressure maintains dry weather today.
2. Rain accompanies a passing system tonight into Monday morning. A period of moderate to heavy rainfall after midnight and early Monday morning could result in nuisance flooding or ponding in poor drainage areas for the morning commute.
3. A fairly tranquil week beyond Monday with near-seasonable temperatures. Slightly warmer and wetter conditions may be present midweek.
Discussion
... KEY MESSAGE 1 DESCRIPTION....