| National Weather Service Forecast for:
St. Louis, MO Issued by: National Weather Service St. Louis/St. Charles, MO |
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| Updated: Sun, 06-Sep-2026 10:26pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Saint Louis | ||||||||||||||||||||||||||||||||||||||||
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| Overnight |
Mostly cloudy, with a low around 67. East wind around 6 mph. |
| Labor Day |
Sunny, with a high near 90. East wind 3 to 7 mph. |
| Monday Night |
Mostly clear, with a low around 67. East wind 3 to 7 mph. |
| Tuesday |
Mostly sunny, with a high near 96. South wind around 6 mph. |
| Tuesday Night |
Mostly clear, with a low around 75. South wind around 7 mph. |
| Wednesday |
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 98. Chance of precipitation is 20%. |
| Wednesday Night |
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 80%. |
| Thursday |
Showers and thunderstorms before 1pm. Mostly cloudy, with a high near 85. Chance of precipitation is 80%. |
| Thursday Night |
A slight chance of rain showers between 7pm and 1am. Partly cloudy, with a low around 65. Chance of precipitation is 20%. |
| Friday |
Sunny, with a high near 87. |
| Friday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly clear, with a low around 68. Chance of precipitation is 30%. |
| Saturday |
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 30%. |
| Saturday Night |
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly clear, with a low around 70. Chance of precipitation is 30%. |
| Sunday |
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%. |
Forecast from NOAA-NWS for St. Louis, MO.