7-Day Zone Forecast for Ontonagon County (Text-Only)
NWS Forecast for: Ontonagon County
Issued by: National Weather Service Marquette, MI
Last Update: 1237 PM EDT Wed Sep 16 2026


Rest Of Today: Mostly sunny. Highs in the lower 70s. Light north winds.

Tonight: Cloudy in the evening, then becoming partly cloudy. Lows 47 to 52. Light east winds, becoming south after midnight.

Thursday: Mostly sunny. Highs 69 to 74. Temperature falling into the middle 60s in the afternoon. Light west winds, becoming northwest 5 to 10 mph in the afternoon.

Thursday Night: Partly cloudy. Patchy fog. Lows 42 to 47. Light east winds.

Friday: Patchy fog in the morning. A chance of rain showers in the afternoon. Cloudy. Highs around 65. Light southeast winds. Chance of rain 50 percent.

Friday Night: Showers likely in the evening, then a chance of showers after midnight. Cloudy. Lows around 48. Chance of rain 60 percent.

Saturday And Saturday Night: Mostly cloudy. Highs around 67. Lows around 46 inland to around 52 at the shore.

Sunday Through Tuesday: Partly cloudy. Highs around 70. Lows around 46 inland to around 52 at the shore.







Zone Forecast: Ontonagon County

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