Ontonagon, MI 7-Day Night Weather Forecast
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Ontonagon, MI Weather Forecast


Ontonagon, MI Weather Forecast Date: 222 AM EDT Sat Sep 26 2026
The area/counties/county of: Ontonagon, including the city of Ontonagon.or toggle through each period.
Early This Morning... Clear. Light south winds.
Today... Mostly sunny. Highs in the mid 70s. Southeast winds 5 to 10 mph.
Tonight... Mostly clear in the evening, then becoming mostly cloudy. Lows around 45 inland to around 51 at The shore. Light south winds.
Sunday... A slight chance of rain showers in the morning. Mostly cloudy. Highs 67 to 72. Light south winds, becoming west in the afternoon. Chance of rain 20%.
Sunday Night... Mostly cloudy. Lows around 49. Light north winds.
Monday... Partly cloudy. Highs around 74 inland to around 66 at The shore. Light southeast winds.
Monday Night... Partly cloudy. Lows around 51.
Tuesday... Showers likely in the afternoon. Mostly cloudy. Highs 69 to 74. Chance of rain 60%.
Tuesday Night... A chance of showers in the evening. Cloudy. Lows around 53. Chance of rain 50%.
Wednesday... Mostly cloudy. Highs 68 to 73.
Wednesday Night... Partly cloudy. Lows around 51.
Thursday... Partly cloudy with a 40% chance of showers. Highs 65 to 70.
Thursday Night... Partly cloudy. Lows 41 to 46. Highs 63 to 68.
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