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Vandalia Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  | |  |  | |  |  |  |  |  |
| Mostly Sunny | Partly Cloudy | Patchy Fog | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Partly Cloudy | Mostly Clear | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers |
| Hi: 70°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 55°FLo: 13°C | Hi: 75°FHi: 24°C | Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C |
| POP: 30% | POP: 30% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 227 PM EDT Sun Oct 25 2026 
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Issued: 205 PM EDT Sun Oct 25 2026
Key Messages
- Dry and pleasant weather persists through the week with highs generally in the 70s and lows around 50.
- The next chance of widespread rain does not arrive until Saturday night.
Discussion
... Issued at 200 PM EDT Sun Oct 25 2026
Surface high pressure continues to be displaced south, now over the Delmarva, in response to a deep low east of the Hudson Bay. The associated cold front is bisecting northern Lake Michigan and this front slides southeast through time, stalling out atop the aform...