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St. Thomas Weather Forecast
| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY |
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| Drizzle | Light Rain | Light Rain | Light Rain | Light Rain | Light Rain | Light Rain | Light Rain | Light Rain | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy |
| Hi: 53°FHi: 12°C | Lo: 43°FLo: 6°C | Hi: 65°FHi: 18°C | Lo: 53°FLo: 12°C | Hi: 55°FHi: 13°C | Lo: 35°FLo: 2°C | Hi: 48°FHi: 9°C | Hi: 48°FHi: 9°C Lo: 33°FLo: 1°C | Hi: 48°FHi: 9°C Lo: 33°FLo: 1°C | Hi: 45°FHi: 7°C Lo: 28°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 28°FLo: -2°C | Hi: 45°FHi: 7°C Lo: 28°FLo: -2°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 80% |
POP = Probability of Precipitation.
Weather Outlook Updated: 622 AM CDT Sat Oct 31 2026 
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Issued: 627 AM CDT Sat Oct 31 2026
Key Messages
- Scattered light rain showers and drizzle are expected through this evening, with damp conditions during the main Trick-or- Treat period.
- Widespread rain is expected across the region Monday into Tuesday, with high chances for at least 1" of rainfall across southeast North Dakota into west central Minnesota.
- Warmer than normal temperatures continue, particularly Sunday and Monday.
Discussion
... Issued at 235 PM CDT Fri Oct 30 2026
...Synopsis...
An upper ridge is building into the Northe...