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Trenton Upper Lake, MO Weather Forecast
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Trenton Upper Lake Weather Forecast
| THIS AFTERNOON | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | THURSDAY | FRIDAY |
 |  | | | |  | | |  | |
| Mostly Sunny | Partly Cloudy | Mostly Sunny | Partly Cloudy | Mostly Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy |
| Hi: 90°FHi: 32°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C | Hi: 99°FHi: 37°C Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C Lo: 79°FLo: 26°C | Hi: 99°FHi: 37°C Lo: 79°FLo: 26°C | Hi: 95°FHi: 35°C Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C Lo: 75°FLo: 24°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 127 PM CDT Sat Aug 29 2026 
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Issued: 202 PM CDT Sat Aug 29 2026
Key Messages
- Well above normal temperatures expected through the entire forecast. High and low temperatures will be 10-15 degrees above normal next week with heat index values ranging from 100 to 105.
- Low chances for precipitation across northern Missouri early tomorrow morning.
Discussion
... Issued at 202 PM CDT Sat Aug 29 2026
Broad upper-level ridging is spreading east into the middle of the country. In the lower-levels, southerly to southwesterly level winds will prevail and this combination wi...