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