Harmon Lake, ME Weather Forecast
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Harmon Lake Weather Forecast
| OVERNIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Isolated Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Patchy Fog | Patchy Fog | Partly Cloudy | Mostly Sunny | Partly Cloudy | Partly Sunny | Chance of Showers | Chance of Showers |
| Lo: 60°FLo: 16°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C |
| POP: 30% | POP: 50% | POP: 40% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 914 PM EDT Mon Aug 17 2026 

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Harmon Lake Forecast Discussion
Issued: 941 PM EDT Mon Aug 17 2026
Key Messages
1) Intermittent showers continue through Tuesday evening. No threat of flooding.
2) Fog likely tonight and Tuesday night. Fog could be dense and impact travel. Dense fog is possible anywhere, though most likely near the coast.
Discussion
... KEY MESSAGE 1...Intermittent showers continue through Tuesday evening. No threat of flooding.
KEY MESSAGE 1 DESCRIPTION... The steadier, more widespread rain has moved out. However, we are still under a very moist airmas...
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