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Middlesex Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 | | | |  |  |  |  | | | | |
| Showers | Showers | Chance of Showers | Chance of Showers | Mostly Cloudy | Partly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny |
| Lo: 51°FLo: 11°C | Hi: 60°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 70°FHi: 21°C |
| POP: 100% | POP: 100% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 600 PM EDT Mon Sep 21 2026 
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Issued: 134 PM EDT Mon Sep 21 2026
Key Messages
1) Periods of rain today through Wednesday. Greatest areal coverage tonight and Tuesday morning. Widespread flooding unlikely, isolated minor flooding possible.
2) Trending drier later in the week as a coastal storm develops offshore.
Discussion
... KEY MESSAGE 1: Periods of rain today through Wednesday. Greatest areal coverage tonight and Tuesday morning. Widespread flooding unlikely, isolated minor flooding possible.
Convection continues to slide south of the CWA with much stability ov...