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Mount Vernon Weather Forecast
| TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT |
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| Mostly Cloudy | Clear | Sunny | Fog | Sunny | Fog | Sunny | Mostly Clear | Sunny | Partly Cloudy | Chance of T-Storm | Chance of Showers |
| Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Lo: 55°FLo: 13°C | Hi: 89°FHi: 32°C | Lo: 59°FLo: 15°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C |
| POP: 20% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 305 AM CDT Mon Oct 05 2026 
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Issued: 1111 PM CDT Sun Oct 4 2026
Key Messages
Issued at 1111 PM CDT Sun Oct 4 2026- Low relative humidity values will result in elevated fire danger over through the work week; please exercise caution and heed local burn bans.
- Temperatures will moderate back into the mid to upper 80s by midweek with unsettled weather potentially returning late next weekend.
Discussion
... (Tonight through next Sunday) Issued at 1111 PM CDT Sun Oct 4 2026
Surface observations indicate that the reinforcing cold front is slowly sinking southeast. Dewpo...