Get the latest 7 Day weather for Cornwall, CT, US including weather news, video, warnings and interactive maps from the weather experts. Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast. Cornwall - Weather warnings issued 14-day forecast. Rain. Forecast - Cornwall. Extended Forecast for West Cornwall CT Winter Weather Advisory December 5, 07:00am until December 6, 07:00am. Be prepared with the most accurate 10-day forecast for West Cornwall, CT, United States with highs, lows, chance of precipitation from The Weather Channel and Weather.com High: 53 °F. Share: Get the Long Range Weather for Your Location. Weather warnings issued. Click here for hazard details and duration. 68 F West Cornwall Station | Report. In the Rock River Valley. Partly Sunny. Check out the Cornwall, CT WinterCast. Snow Likely then Rain/Snow Likely. Plan you week with the help of our 10-day weather forecasts and weekend weather predictions for Cornwall Bridge, Connecticut . Today. Northeast. Local Forecast Office More Local Wx 3 Day History Mobile Weather Hourly Weather Forecast. Forecasting the snowfall amount probability, snow accumulation, and a snowfall forecast map. See long range ... Day in July and August 90-100. Low: 31 °F. Partly Cloudy. Monday Night. Extended Forecast for Cornwall CTSimilar City Names. Thank you for reporting this station. West Cornwall, CT 10-Day Weather Forecast star_ratehome. Country: Connecticut, USA, City: Cornwall. High: 34 °F. We will review the data in question. Long-term weather report. Overnight. Tonight, Light rain and a moderate breeze. Day by day forecast. Know what's coming with AccuWeather's extended daily forecasts for West Cornwall, CT. Up to 90 days of daily highs, lows, and precipitation chances. Partly Cloudy. Winter Weather Advisory. Low: 37 °F. Submitted by Dee on October 17, 2020 - 8:23am. Cornwall, Connecticut, USA - Detailed 10-day weather forecast. Last updated today at 20:03. 2020-2021 Long Range Weather Forecast for West Cornwall, CT . Report Station. Get the forecast for today, tonight & tomorrow's weather for West Cornwall, CT. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend! Monday. Tonight.