| NWS Forecast for: Plainville IL Issued by: National Weather Service Saint Louis, MO Last Update: 4:21 am CST Feb 15, 2026 |  |
| Today: Patchy fog before 9am. Otherwise, cloudy through mid morning, then gradual clearing, with a high near 59. North wind around 6 mph becoming calm in the afternoon. Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 39. Calm wind becoming south around 6 mph after midnight. Washington's Birthday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 65. South wind 6 to 11 mph, with gusts as high as 22 mph. Monday Night: Mostly cloudy, with a low around 44. South wind around 6 mph. Tuesday: Mostly cloudy, with a high near 65. South wind 6 to 15 mph, with gusts as high as 28 mph. Tuesday Night: A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 55. Wednesday: Sunny, with a high near 65. Wednesday Night: Partly cloudy, with a low around 40. Thursday: A 30 percent chance of showers after noon. Mostly sunny, with a high near 63. Thursday Night: A 20 percent chance of showers before midnight. Mostly clear, with a low around 33. Friday: A 20 percent chance of showers. Partly sunny, with a high near 45. Friday Night: Partly cloudy, with a low around 25. Saturday: Mostly sunny, with a high near 45. | |
| Plainville IL 39.79°N 91.18°W (Elev. 689 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |
