| NWS Forecast for: Illinois Valley Rgnl-Walter A Duncan Field Airport IL Issued by: National Weather Service Chicago, IL Last Update: 3:01 am CST Dec 11, 2025 | |
| Overnight: Cloudy, with a low around 24. West northwest wind 5 to 10 mph. Thursday: A 40 percent chance of snow, mainly after 4pm. Cloudy, with a high near 26. West northwest wind around 5 mph becoming southeast in the afternoon. Thursday Night: Snow, mainly before midnight. Low around 22. East southeast wind around 5 mph becoming northeast after midnight. Winds could gust as high as 10 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible. Friday: A slight chance of snow showers between 9am and noon. Mostly cloudy, with a high near 27. North northeast wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 15 mph. Chance of precipitation is 20%. Friday Night: Mostly cloudy, with a low around 7. West northwest wind 10 to 15 mph, with gusts as high as 20 mph. Saturday: Snow likely, mainly after noon. Mostly cloudy, with a high near 11. Chance of precipitation is 60%. Saturday Night: A 20 percent chance of snow before midnight. Partly cloudy, with a low around -8. Sunday: Sunny and cold, with a high near 4. Sunday Night: Mostly clear, with a low around -6. Monday: Mostly sunny, with a high near 24. Monday Night: Partly cloudy, with a low around 12. Tuesday: Mostly sunny, with a high near 34. Tuesday Night: Mostly cloudy, with a low around 27. Wednesday: Mostly cloudy, with a high near 38. | |
| Illinois Valley Rgnl-Walter A Duncan Field Airport IL 41.34°N 89.14°W | |
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