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Trojan Lake Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY |
 |  | | | | |  |  |  | | |  |
| Clear | Sunny | Mostly Clear | Sunny | Clear | Mostly Sunny | Chance of Rain | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Chance of Showers |
| Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 81°FHi: 27°C Lo: 61°FLo: 16°C | Hi: 90°FHi: 32°C Lo: 55°FLo: 13°C | Hi: 90°FHi: 32°C Lo: 55°FLo: 13°C | Hi: 71°FHi: 22°C Lo: 50°FLo: 10°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 543 PM CDT Wed Oct 07 2026 
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Issued: 608 PM CDT Wed Oct 7 2026
Key Messages
- Dry weather with unseasonably warm temperatures are forecast through early next week.
- The remnants of Tropical Cyclone Isaias may bring (beneficial) rain to parts of southeast Missouri and southwest Illinois this weekend, but there remains a lot of uncertainty with its track.
Aviation
/00Z TAFS THROUGH 06Z FRIDAY/... Issued at 600 PM CDT Wed Oct 7 2026
Winds will become light and variable this evening and continue through the TAF period. Confidence in fog development tonight is still to...