| NWS Forecast for: Ontonagon County Issued by: National Weather Service Marquette, MI Last Update: 221 AM EDT Thu Jul 30 2026 |  |
| Early This Morning: Partly cloudy with a slight chance of showers and thunderstorms. Patchy smoke. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Today: Mostly cloudy with a chance of showers with a slight chance of thunderstorms. Patchy smoke. Hot with highs in the lower 90s. West winds 5 to 10 mph. Chance of rain 50 percent. Tonight: Warm. Patchy smoke. A chance of showers with a slight chance of thunderstorms after midnight. Cloudy. Lows around 66. Light southwest winds. Chance of rain 40 percent. Friday: Very warm. Cloudy with a chance of showers. Patchy smoke. A slight chance of thunderstorms in the afternoon. Highs around 83 inland to around 77 at the shore. Light southwest winds, becoming west in the afternoon. Chance of rain 50 percent. Friday Night: Mostly cloudy with a slight chance of showers and thunderstorms in the evening, then partly cloudy after midnight. Lows 56 to 61. Light west winds. Chance of rain 20 percent. Saturday: Mostly sunny. Highs around 80 inland to around 71 at the shore. North winds 5 to 10 mph. Saturday Night: Mostly clear. Lows around 50 inland to around 56 at the shore. Sunday And Sunday Night: Clear. Highs around 82 inland to around 76 at the shore. Lows 57 to 62. Monday And Monday Night: Very warm. Mostly clear. Highs 85 to 90. Lows 64 to 69. Tuesday: Warm. A chance of showers in the afternoon. Partly cloudy. Highs around 84. Chance of rain 40 percent. Tuesday Night: Mostly cloudy with a 40 percent chance of showers. Lows 57 to 62. Wednesday: Partly cloudy. Highs around 79. | |
| Zone Forecast: Ontonagon County | |
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