Union, ME Weather Forecast
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Union Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
| Partly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Sunny | Mostly Clear | Partly Sunny | Partly Cloudy | Mostly Cloudy | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 61°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C |
| POP: 50% | POP: 50% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 801 AM EDT Mon Sep 21 2026 

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Issued: 711 AM EDT Mon Sep 21 2026
Key Messages
1. Fair and dry weather will dominate early this week with frost possible at night.
2. There is a signal for a slow moving coastal system near the East Coast late in the week. Impacts will be track dependent, which remains uncertain at this time range. The potential exists for rain, gusty NE winds, and high surf sometime over next weekend.
Discussion
... KEY MESSAGE 1 DESCRIPTION...
After some early morning low clouds and fog, confidence is high that fair weather will prevail today throu...
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