| NWS Forecast for: 4 Miles WNW Castleton IL Issued by: National Weather Service Lincoln, IL Last Update: 3:56 am CDT May 18, 2026 |  |
Today: Showers and possibly a thunderstorm before 11am, then a chance of showers and thunderstorms, mainly between 11am and 2pm. High near 81. South wind 14 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Tonight: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 4am. Low around 67. South wind 13 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible. Tuesday: Showers and thunderstorms likely before 4pm, then a chance of showers. Mostly cloudy, with a high near 76. South wind 14 to 17 mph becoming west northwest in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Tuesday Night: Partly cloudy, with a low around 50. Northwest wind 9 to 13 mph, with gusts as high as 21 mph. Wednesday: Mostly sunny, with a high near 67. North northeast wind 8 to 10 mph, with gusts as high as 18 mph. Wednesday Night: Partly cloudy, with a low around 45. East northeast wind 6 to 8 mph, with gusts as high as 16 mph. Thursday: Mostly sunny, with a high near 70. East wind 7 to 11 mph, with gusts as high as 20 mph. Thursday Night: A 30 percent chance of showers after 1am. Mostly cloudy, with a low around 50. Friday: A 40 percent chance of showers. Mostly cloudy, with a high near 73. Friday Night: Mostly cloudy, with a low around 54. Saturday: Partly sunny, with a high near 80. Saturday Night: Partly cloudy, with a low around 57. Sunday: Mostly sunny, with a high near 84. | |
| 4 Miles WNW Castleton IL 41.14°N 89.77°W (Elev. 676 ft) | |
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