| National Weather Service Forecast for:
St. Louis, MO Issued by: National Weather Service St. Louis/St. Charles, MO |
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| Updated: Wed, 19-Aug-2026 6:01pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Saint Louis | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
A chance of showers and thunderstorms before 2am, then patchy fog. Mostly cloudy, with a low around 70. Northeast wind 1 to 5 mph. Chance of precipitation is 40%. |
| Thursday |
Patchy fog before 9am. Partly sunny, with a high near 85. Northeast wind around 5 mph. |
| Thursday Night |
Mostly clear, with a low around 68. Northeast wind 0 to 5 mph. |
| Friday |
Sunny, with a high near 88. West wind 0 to 3 mph. |
| Friday Night |
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 70. Southwest wind around 2 mph. Chance of precipitation is 20%. |
| Saturday |
A slight chance of showers and thunderstorms before 7am. Sunny, with a high near 87. Chance of precipitation is 20%. |
| Saturday Night |
Mostly clear, with a low around 68. |
| Sunday |
Mostly sunny, with a high near 85. |
| Sunday Night |
A slight chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 67. Chance of precipitation is 20%. |
| Monday |
A slight chance of rain showers before 1pm. Partly sunny, with a high near 85. Chance of precipitation is 20%. |
| Monday Night |
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 69. Chance of precipitation is 20%. |
| Tuesday |
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 88. Chance of precipitation is 20%. |
| Tuesday Night |
Partly cloudy, with a low around 71. |
| Wednesday |
Mostly sunny, with a high near 90. |
Forecast from NOAA-NWS for St. Louis, MO.