Michael J Kirwan Reservoir Weather Forecast

    • 67
    • 83

    Thunderstorms Likely

    • 59
    • 76

    Rain Showers Likely

    • 64
    • 82

    Partly Sunny

    • 70
    • 86

    Partly Sunny

    • 73
    • 91

    Mostly Sunny

    • 74
    • 94

    Mostly Sunny

Today 18 Jun Portage

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms late this Morning, then Showers likely with a chance of Thunderstorms this afternoon. Highs in the lower 80s. Southwest Winds 5 to 10 Mph. Chance of rain 70 percent.

Tonight 18 Jun Portage

Showers likely. Thunderstorms Likely, mainly in the evening. Humid with Lows in the mid 60s. Southwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Chance of rain 70 percent.

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Michael J Kirwan Reservoir Temperature Statistics

June Temperature

Portage County Airport (8.7 miles)

  • Lowest 1 June, 2025

    38.1 °F

  • Average June

    65.1 °F

  • Highest 12 June, 2025

    84.9 °F

Climate (2020–Present)

Portage County Airport (8.7 miles)

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  • Average Low 2020–2025

    41 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    60.2 °F
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