| NWS Forecast for: Nelson IL Issued by: National Weather Service Chicago, IL Last Update: 5:56 pm CST Feb 18, 2026 |  |
| Tonight: Increasing clouds, with a low around 36. West southwest wind 5 to 10 mph becoming northeast after midnight. Winds could gust as high as 20 mph. Thursday: A slight chance of showers before 3pm, then a chance of showers and thunderstorms between 3pm and 5pm, then showers likely and possibly a thunderstorm after 5pm. Partly sunny, with a high near 59. East wind 5 to 10 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Thursday Night: Rain showers likely before midnight, then rain likely between midnight and 3am, then rain and snow likely after 3am. Some thunder is also possible. Mostly cloudy, with a low around 31. Breezy, with an east wind 10 to 15 mph becoming west 15 to 20 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 70%. Little or no snow accumulation expected. Friday: A 30 percent chance of snow before noon. Mostly cloudy, with a high near 40. Breezy, with a west wind 15 to 20 mph, with gusts as high as 30 mph. Friday Night: Partly cloudy, with a low around 23. West wind 10 to 15 mph, with gusts as high as 20 mph. Saturday: Partly sunny, with a high near 36. Saturday Night: Mostly cloudy, with a low around 19. Sunday: Partly sunny, with a high near 31. Sunday Night: Partly cloudy, with a low around 15. Monday: Sunny, with a high near 34. Monday Night: Mostly clear, with a low around 18. Tuesday: Mostly sunny, with a high near 44. Tuesday Night: Mostly cloudy, with a low around 30. Wednesday: Partly sunny, with a high near 48. | |
| Nelson IL 41.79°N 89.61°W | |
Visit your local NWS office at: https://www.weather.gov/lot |
