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Hermann Ii Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT |
 |  |  |  | |  | | | | | |  |
| Sunny | Partly Cloudy | Chance of T-Storm | Clear | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Partly Cloudy | Chance of T-Storm | Chance of Showers |
| Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Hi: 89°FHi: 32°C Lo: 69°FLo: 21°C |
| POP: 20% | POP: 40% | POP: 50% | POP: 20% | POP: 20% | POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 222 PM CDT Sun Sep 13 2026 
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Issued: 230 PM CDT Sun Sep 13 2026
Key Messages
- Summertime heat and humidity returns Tuesday.
- Chances of showers and thunderstorms each day are mainly confined to northeast Missouri and west-central Illinois.
Aviation
/18Z TAFS THROUGH 00Z TUESDAY/... Issued at 1212 PM CDT Sun Sep 13 2026
A few showers and thunderstorms are possible this afternoon in southeast Missouri, though south of the terminals. A better chance exists mid-late Monday morning in northeast Missouri and west-central Illinois. Have therefore added a PROB30 group at ...