Weather WorldDarien, CT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Darien Weather Forecast
| THIS AFTERNOON | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
 |  |  | | | | |  |  | | | |
| Mostly Sunny | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 69°FHi: 21°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C | Hi: 65°FHi: 18°C | Lo: 51°FLo: 11°C |
| POP: 30% | POP: 50% | POP: 50% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 221 PM EDT Mon Sep 21 2026 
Darien Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Darien Weather Map
Darien Quick Facts
Darien Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 339 PM EDT Mon Sep 21 2026
Key Messages
1) Rain chances continue to decrease late tonight into Tuesday, with a good chance that it remains south altogether.
2) Prolonged period of gusty NE winds starting Tuesday and through late in the week. Potential for high surf, dangerous rip currents, beach erosion and some coastal flooding.
Discussion
... .KEY MESSAGE 1... An anomalously strong high pressure system centered north of the Great Lakes will build east across eastern Canada and the Northeast through midweek. Guidance has con...