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Lake Warrenton, MO Weather Forecast
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Lake Warrenton Weather Forecast
| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | FRIDAY NIGHT | SATURDAY | SUNDAY |
 |  | | | | | |  | | | |
| Mostly Clear | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Chance of Showers | Mostly Clear | Mostly Clear | Mostly Clear |
| Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 99°FHi: 37°C Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C Lo: 71°FLo: 22°C |
| POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1107 PM CDT Sun Aug 30 2026 
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Issued: 1133 PM CDT Sun Aug 30 2026
Key Messages
- A prolonged regional heatwave expected Monday through at least Friday, with near-record warmth at times. Heat impacts will be compounded by the long duration of the event, and there is a heightened potential for more significant impacts within the St. Louis metro area and southwest Illinois.
Aviation
/06Z TAFS THROUGH 12Z TUESDAY/... Issued at 1132 PM CDT Sun Aug 30 2026
Confidence is high in dry and VFR flight conditions through the entire TAF period at all local terminals.