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City of St. Ignace, MISt. Ignace, MI Weather Forecast
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St. Ignace Weather Forecast
| REST OF TONIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY |
 |  |  | | | |  |  |  | | | |
| Mostly Clear | Partly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny | Chance of Showers | Chance of Showers | Mostly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny |
| Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 49°FLo: 9°C | Hi: 71°FHi: 22°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C | Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C |
| POP: 40% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 112 AM EDT Wed Sep 16 2026 
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Issued: 1153 PM EDT Tue Sep 15 2026
Key Messages
- Lingering afternoon showers and gusty winds diminish.
- Lots of dry time Wednesday through Friday with potential for more widespread rain at times this weekend into early next week.
Discussion
... Issued at 214 PM EDT Tue Sep 15 2026
Pattern Synopsis/Forecast: Early this afternoon, 994mb low pressure sits near James Bay with a warm front in the process of trekking across northern MI. Trailing cold front not far behind, generally draped across the central U.P. into northeast WI. Gusty sout...