Weather World
Town of Old Saybrook, CTOld Saybrook, CT Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Old Saybrook Weather Forecast
| TODAY | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  |  | |  |  |  | | | | |
| Chance of Rain | Chance of T-Storm | Chance of T-Storm | Rain | Chance of Rain | Chance of Rain | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear |
| Hi: 70°FHi: 21°C | Lo: 60°FLo: 16°C | Hi: 69°FHi: 21°C | Lo: 55°FLo: 13°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C | Lo: 39°FLo: 4°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C |
| POP: 20% | POP: 80% | POP: 100% | POP: 70% | POP: 40% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 311 AM EST Thu Nov 05 2026 
Old Saybrook Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Old Saybrook Weather Map
Old Saybrook Quick Facts
Old Saybrook Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 338 AM EST Thu Nov 5 2026
Key Messages
1) Unseasonably mild and humid today through Friday.
2) Wet weather makes a return, with a period of steadier rain, possibly heavy at times across eastern sections on Friday.
3) Drier and cooler air returns during the weekend into early next week, but temperatures will remain slightly above average for early November.
Discussion
... .KEY MESSAGE 1... An unseasonably warm and humid air mass is in place. Dewpoint readings are mainly in the upper 50s and lower 60s, which is type of humidity...