| NWS Forecast for: Olney IL Issued by: National Weather Service Lincoln, IL Last Update: 9:37 am CDT Aug 18, 2026 | |
Today: Sunny, with a high near 85. Light and variable wind. Tonight: Mostly clear, with a low around 67. Calm wind. Wednesday: Showers likely, with thunderstorms also possible after 1pm. Mostly cloudy, with a high near 82. Light and variable wind becoming west southwest around 6 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 50%. Thursday: Partly sunny, with a high near 83. Calm wind becoming northeast around 6 mph in the morning. Thursday Night: Mostly clear, with a low around 63. North northeast wind around 5 mph becoming calm in the evening. Friday: Sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon. Friday Night: Mostly clear, with a low around 64. Saturday: Sunny, with a high near 85. Saturday Night: Mostly clear, with a low around 63. Sunday: Sunny, with a high near 83. Sunday Night: Partly cloudy, with a low around 62. Monday: Mostly sunny, with a high near 84. | |
| Olney IL 38.7°N 88.1°W (Elev. 449 ft) | |
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