Joliet Weather Forecasts. Today’s and tonight’s Joliet, IL weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com Get the Joliet, IL local hourly forecast including temperature, RealFeel, and chance of precipitation. Locally heavy rainfall and flooding will remain possible from east Texas into the Southeast through Thursday. Check out our current live radar and weather forecasts for Joliet, Illinois to help plan your day Meanwhile, critical fire weather conditions are again expected over parts of the Great Basin. Be prepared with the most accurate 10-day forecast for Joliet, IL with highs, lows, chance of precipitation from The Weather Channel and Weather.com There are currently no alerts for this location. Please go to the Forecast page for more weather information. AdChoices. Locally Heavy Rainfall from Texas Into the Southeast; Critical Fire Weather Conditions for Parts of the West. Get the forecast for today, tonight & tomorrow's weather for Joliet, IL. Want to know what the weather is now? Weather Underground provides local & long-range weather forecasts, weatherreports, maps & tropical weather conditions for the Joliet area. Joliet, IL - Get the very latest weather forecast, including hour-by-hour views, the 10-day outlook, temperature, humidity, precipitation for your area. Find the most current and reliable 7 day weather forecasts, storm alerts, reports and information for [city] with The Weather Network. Everything you need to be ready to step out prepared. Hi/Low, RealFeel®, precip, radar, & everything you need to be ready for the day, commute, and weekend!