| NWS Forecast for: Frontenac MO Issued by: National Weather Service Saint Louis, MO Last Update: 4:21 pm CDT Jul 3, 2025 | |
| Tonight: Mostly clear, with a low around 73. Light south wind. Independence Day: Mostly sunny, with a high near 95. Calm wind becoming south 5 to 8 mph in the morning. Friday Night: Mostly clear, with a low around 74. South wind 5 to 7 mph becoming calm after midnight. Saturday: Sunny, with a high near 95. Calm wind becoming south 5 to 7 mph in the morning. Saturday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 75. South wind 3 to 6 mph. Sunday: A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 91. Sunday Night: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Monday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 90. Monday Night: A 20 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 71. Tuesday: A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91. Tuesday Night: A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Wednesday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 89. Wednesday Night: A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Thursday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88. | |
| Frontenac MO 38.62°N 90.4°W (Elev. 597 ft) | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |