| National Weather Service Forecast for:
St. Louis, MO Issued by: National Weather Service St. Louis/St. Charles, MO |
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| Updated: Sat, 22-Aug-2026 5:56pm CDT | ||||||||||||||||||||||||||||||||||||||||
| Saint Louis | ||||||||||||||||||||||||||||||||||||||||
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| Tonight |
Mostly clear, with a low around 66. Northwest wind 1 to 5 mph. |
| Sunday |
Sunny, with a high near 84. Northwest wind 2 to 6 mph. |
| Sunday Night |
Partly cloudy, with a low around 64. Northeast wind 1 to 5 mph. |
| Monday |
Mostly sunny, with a high near 83. Southeast wind 1 to 5 mph. |
| Monday Night |
A slight chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 67. East wind around 5 mph. Chance of precipitation is 20%. |
| Tuesday |
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 86. Chance of precipitation is 20%. |
| Tuesday Night |
Partly cloudy, with a low around 70. |
| Wednesday |
Mostly sunny, with a high near 89. |
| Wednesday Night |
Partly cloudy, with a low around 70. |
| Thursday |
Sunny, with a high near 88. |
| Thursday Night |
Mostly clear, with a low around 69. |
| Friday |
Sunny, with a high near 87. |
| Friday Night |
Partly cloudy, with a low around 70. |
| Saturday |
Mostly sunny, with a high near 89. |
Forecast from NOAA-NWS for St. Louis, MO.