Weather WorldSt. Peter, IL Weather Forecast
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St. Peter Weather Forecast
| THIS AFTERNOON | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY | FRIDAY | SATURDAY |
 |  | | | | | | | | |
| Sunny | Clear | Sunny | Clear | Sunny | Clear | Clear | Mostly Clear | Mostly Clear | Mostly Clear |
| Hi: 79°FHi: 26°C | Lo: 50°FLo: 10°C | Hi: 75°FHi: 24°C | Lo: 49°FLo: 9°C | Hi: 79°FHi: 26°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C Lo: 51°FLo: 11°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C Lo: 55°FLo: 13°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1042 AM CDT Sun Oct 04 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1212 PM CDT Sun Oct 4 2026
Key Messages
- Dry conditions are expected for the next week, with a gradual warming trend Tuesday onward.
Aviation
/18Z TAFS THROUGH 00Z TUESDAY/... Issued at 1212 PM CDT Sun Oct 4 2026
Confidence is high in dry and VFR flight conditions through the forecast period at all local terminals.
Watches / Warnings / Advisories
/WARNINGS/ADVISORIES... MO...None. IL...None.