| NWS Forecast for: Whiteside MO Issued by: National Weather Service Saint Louis, MO Last Update: 8:46 am CDT Jun 18, 2026 |  |
| Today: A 40 percent chance of showers and thunderstorms, mainly between 11am and 4pm. Mostly cloudy, with a high near 23. West wind 8 to 10 km/h. Tonight: Patchy fog after 4am. Otherwise, mostly clear, with a low around 14. Calm wind. Juneteenth: Patchy fog before 7am. Otherwise, mostly sunny, with a high near 28. Calm wind. Friday Night: Partly cloudy, with a low around 17. Calm wind. Saturday: Mostly sunny, with a high near 29. Calm wind. Saturday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 19. Sunday: Showers and possibly a thunderstorm. High near 26. Chance of precipitation is 90%. Sunday Night: Showers likely and possibly a thunderstorm before 1am, then a slight chance of showers. Mostly cloudy, with a low around 15. Chance of precipitation is 70%. Monday: Partly sunny, with a high near 24. Monday Night: Partly cloudy, with a low around 14. Tuesday: Sunny, with a high near 25. Tuesday Night: Mostly clear, with a low around 16. Wednesday: Mostly sunny, with a high near 27. | |
| Whiteside MO 39.17°N 91.01°W (Elev. 712 m) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |
