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