| NWS Forecast for: Saint Peters MO Issued by: National Weather Service Saint Louis, MO Last Update: 2:56 pm CDT Apr 12, 2026 | |
This Afternoon: A chance of showers, with thunderstorms also possible after 4pm. Mostly cloudy, with a high near 79. South wind 11 to 14 mph, with gusts as high as 36 mph. Chance of precipitation is 50%. Tonight: A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 67. Southwest wind 10 to 16 mph, with gusts as high as 29 mph. Monday: Mostly sunny, with a high near 87. Southwest wind 9 to 14 mph, with gusts as high as 25 mph. Monday Night: Mostly cloudy, with a low around 70. Southwest wind around 14 mph, with gusts as high as 23 mph. Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 89. Southwest wind 11 to 15 mph, with gusts as high as 25 mph. Tuesday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Wednesday: Showers and possibly a thunderstorm. High near 81. Chance of precipitation is 80%. Wednesday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. Thursday: Mostly sunny, with a high near 84. Thursday Night: Mostly clear, with a low around 63. Friday: A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 63. Chance of precipitation is 60%. Saturday: Showers and thunderstorms likely. Partly sunny, with a high near 78. Chance of precipitation is 60%. | |
| Saint Peters MO 38.78°N 90.59°W (Elev. 492 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |