Know what's coming with AccuWeather's extended daily forecasts for Shelbyville, IL. Find the most current and reliable 14 day weather forecasts, storm alerts, reports and information for Shelbyville, IL, US with The Weather Network. Plan you week with the help of our 10-day weather forecasts and weekend weather predictions for Shelbyville, Illinois Partly cloudy skies. Updated: December 22, 2020 @ 11:47 am NOAA National Weather Service National Weather Service. Unsettled Weather Across the Northwest; More Snow for the Great Lakes. Winds SSE at 10 to 15 mph.. Tonight. Station Data. Winds SSE at 15 to 25 mph. Major Winter Storm Impacting the Northeast and Mid Atlantic. Monthly: 1981-2010 normals Higher wind gusts possible. Up to 90 days of daily highs, lows, and precipitation chances. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Shelbyville area. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. Want to know what the weather is now? Check out our current live radar and weather forecasts for Shelbyville, Illinois to help plan your day Shelbyville Weather Forecasts. A storm system will produce coastal rain and higher elevation snow over the Pacific Northwest before advancing into the northern Plains and northern Rockies by Sunday morning. Abundant sunshine. Shelbyville, IL (62565) Today. Low 39F. A major winter storm will continue to impact much of the Mid-Atlantic and Northeast U.S. before gradually diminishing Thursday afternoon and evening. Shelbyville Weather Forecasts. NOAA National Weather Service National Weather Service. Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Shelbyville area. Monthly averages Shelbyville Longitude: -88.7901, Latitude: 39.4064 Average weather Shelbyville, IL - 62565. Latest COVID-19 coronavirus data and map for Shelbyville, IL Shelbyville, IL Coronavirus Information - Safety Updates, News and Tips - The Weather Channel | Weather.com Advertisement High 48F.