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Harkness Lake Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
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| Sunny | Fog | Partly Sunny | Chance of Showers | Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Partly Cloudy |
| Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 71°FHi: 22°C | Hi: 70°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C Lo: 50°FLo: 10°C | Lo: 55°FLo: 13°C |
| POP: 40% | POP: 70% | POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 213 AM EDT Fri Aug 21 2026 
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Issued: 228 AM EDT Fri Aug 21 2026
Key Messages
As of 228 AM EDT Friday...
1. Dry before showers return late tomorrow and Sunday.
2. A few lingering showers north on Tuesday, then dry conditions Wednesday before scattered showers return later Thursday into Friday.
Discussion
... As of 228 AM EDT Friday...
KEY MESSAGE 1: Dry and relatively seasonable conditions will continue today with low humidity. Highs will be in the 70s and low 80s and lows will be in the 40s and 50s away from Lake Champlain. A primary area of low pressure will deve...