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City of St. Louis, MissouriSt. Louis, MO Weather Forecast
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St. Louis Weather Forecast
| THIS AFTERNOON | TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT |
 |  |  |  | |  | | |  |  | | |
| Mostly Sunny | Mostly Cloudy | Chance of T-Storm | Chance of T-Storm | Sunny | Mostly Clear | Sunny | Mostly Clear | Partly Cloudy | Partly Cloudy | Mostly Sunny | Mostly Clear |
| Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C |
| POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM CDT Tue Aug 25 2026 
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Issued: 1235 PM CDT Tue Aug 25 2026
Key Messages
- Seasonable temperatures are expected through Saturday before summertime heat likely returns Sunday into early next week.
- Scattered showers and thunderstorms are forecast Wednesday afternoon/evening. A few of these storms may be strong to severe with damaging winds the main threat.
Aviation
/18Z TAFS THROUGH 00Z THURSDAY/... Issued at 1232 PM CDT Tue Aug 25 2026
Predominantly dry and VFR flight conditions are expected throughout the TAF period along with light winds. However, there is a ...