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Middlesex Reservoir, NJ Weather Forecast
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Middlesex Reservoir Weather Forecast
| THIS AFTERNOON | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT |
 |  |  |  |  |  | |  | | | | |
| Sunny | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 70°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 71°FLo: 22°C |
| POP: 70% | POP: 50% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 254 PM EDT Wed Aug 26 2026 
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Issued: 741 PM EDT Wed Aug 26 2026
Key Messages
1) Confidence is increasing in a period of heavy rainfall and scattered thunderstorms Thursday into Thursday night. Isolated to scattered instances of flash flooding and strong to severe thunderstorms are possible for parts of the area.
2) Dry and seasonable for the weekend ahead, with a warming trend early next week.
3) High risk for rip currents on Thursday.
Discussion
... .KEY MESSAGE 1... Mid level open trough approaches the northeast early Thursday, weakening as it does so. Surface ...