Weather WorldUnionville Upper Reservoir, CT Weather Forecast
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Unionville Upper Reservoir Weather Forecast
| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
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| Chance of Showers | Showers Likely | Mostly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of Showers | Chance of Showers | Partly Cloudy | Partly Cloudy | Mostly Cloudy |
| Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C | Hi: 80°FHi: 27°C Lo: 59°FLo: 15°C |
| POP: 70% | POP: 60% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1002 PM EDT Sun Aug 16 2026 
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Unionville Upper Reservoir Forecast Discussion
Issued: 805 PM EDT Sun Aug 16 2026
Key Messages
- Widespread showers expected tonight into Tuesday although the overall rainfall totals have continued to trend down.
- Scattered showers and a few storms possible later Tuesday. Increased chances for showers arrive for late-week.
Discussion
... KEY MESSAGE 1...Widespread showers expected tonight into Tuesday although the overall rainfall totals have continued to trend down.
A low pressure system off the southern Long Island waters will move east tonight bringi...