O'Brien Lake Weather Forecast

    • 68
    • 83

    Thunderstorms Likely

    • 64
    • 83

    Rain Showers

    • 59
    • 77

    Chance Thunderstorms

    • 60
    • 81

    Partly Sunny

    • 63
    • 83

    Slight Chance Thunderstorms

    • 63
    • 85

    Chance Thunderstorms

Today 22 Jul Iron

Mostly cloudy this Morning, then partly sunny with a chance of Showers and Thunderstorms this afternoon. Warmer with Highs in the lower 80s. South Winds 5 to 10 Mph. Chance of rain 50 percent.

Tonight 22 Jul Iron

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers and Thunderstorms likely after midnight. Humid with Lows in the upper 60s. South Winds around 10 Mph with Gusts up to 20 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

O'Brien Lake Temperature Statistics

July Temperature

Ironwood, Gogebic-Iron County Airport (20.5 miles)

  • Lowest 18 July, 2025

    43 °F

  • Average July

    66.1 °F

  • Highest 4 July, 2025

    89.1 °F

Climate (2020–Present)

Ironwood, Gogebic-Iron County Airport (20.5 miles)

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  • Average Low 2020–2025

    32.7 °F

  • Average 2020–2025

    42.4 °F

  • Average High 2020–2025

    51.3 °F
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