Cornwall, CT Weather Forecast

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Cornwall, CT Weather Forecast

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Cornwall CT weather  - Clear - 49°F
Clear
49°F
Updated 3:10 am
Feels Like 36°F
Humidity 60%
Wind NE 8 mph
Barometer  30.21 in
Dew Point 36°F
Cornwall CT weather  - Clear - 9°C
Clear
9°C
Updated 3:10 am
Feels Like 2°C
Humidity 60%
Wind NE 13 km/h
Barometer  102.3 kPa
Dew Point 2°C

Cornwall Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY SATURDAY SUNDAY SUNDAY NIGHT MONDAY
Cornwall, CT Weather - Tonight Mostly Clear Cornwall, CT Weather - Tuesday Sunny Cornwall, CT Weather - Tuesday Night Mostly Clear Cornwall, CT Weather - Wednesday Sunny Cornwall, CT Weather - Wednesday Night Partly Cloudy Cornwall, CT Weather - Thursday Mostly Clear Cornwall, CT Weather - Thursday Night Mostly Clear Cornwall, CT Weather - Friday Mostly Clear Cornwall, CT Weather - Saturday Mostly Clear Cornwall, CT Weather - Sunday Sunny Cornwall, CT Weather - Sunday Night Mostly Clear Cornwall, CT Weather - Monday Mostly Sunny
Mostly Clear Sunny Mostly Clear Sunny Partly Cloudy Mostly Clear Mostly Clear Mostly Clear Mostly Clear Sunny Mostly Clear Mostly Sunny
Lo: 39°FLo: 4°C Hi: 61°FHi: 16°C
Lo: 40°FLo: 4°C Hi: 59°FHi: 15°C
Lo: 39°FLo: 4°C Hi: 60°FHi: 16°C
Lo: 39°FLo: 4°C
Hi: 60°FHi: 16°C
Lo: 39°FLo: 4°C
Hi: 55°FHi: 13°C
Lo: 39°FLo: 4°C
Hi: 55°FHi: 13°C
Lo: 39°FLo: 4°C
Hi: 61°FHi: 16°C
Lo: 41°FLo: 5°C Hi: 65°FHi: 18°C
POP = Probability of Precipitation.
Weather Outlook Updated: 830 PM EDT Mon Oct 19 2026 Cornwall, CT Weather - WeatherWorld.com

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Cornwall Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 200 AM EDT Tue Oct 20 2026

Key Messages

1) Dry weather will persist this week across eastern New York and western New England while a Nor`easter meanders well offshore.


Discussion

... KEY MESSAGE 1...

High confidence in a prolonged stretch of dry weather across eastern NY and western New England through this week and even into this weekend as high pressure dominates the weather pattern. With our ~1030-1035hPa high centered in western Quebec today and a slowly strengthening nor`easter well off the North Carolina/mid-Atlantic c...