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Decatur, IL Weather Forecast, with current conditions, wind, air quality, and what to expect for the next 3 days.
- Hourly
Hourly weather forecast in Decatur, IL. Check current...
- Hourly
Be prepared with the most accurate 10-day forecast for Decatur, GA with highs, lows, chance of precipitation from The Weather Channel and Weather.com.
Detailed Forecast. Tonight. Partly cloudy, with a low around 74. South wind around 5 mph. Independence Day. A 30 percent chance of showers and thunderstorms, mainly after 2pm. Partly sunny, with a high near 94. Heat index values as high as 101. Calm wind becoming south around 5 mph in the afternoon.
- Peachtree City, GA
Detailed Forecast. Tonight. Isolated showers and thunderstorms after 3am. Mostly cloudy, with a low around 69. Calm wind becoming south southwest around 5 mph after midnight. Chance of precipitation is 20%. Friday. Isolated showers and thunderstorms before 7am. Mostly sunny, with a high near 82.
- Central Illinois
- 68°F (20°C)
- 29.93 in (1012.9 mb)
- 84%
Get the weather outlook for Decatur, Illinois, USA for the next two weeks. See the daily high and low temperatures, precipitation chance, wind speed, humidity, UV index, sunrise and sunset times.
Hourly weather forecast in Decatur, IL. Check current conditions in Decatur, IL with radar, hourly, and more.
Today’s and tonight’s Decatur, IL weather forecast, weather conditions and Doppler radar from The Weather Channel and Weather.com.