Round-up Lake Weather Forecast

    • 52
    • 76

    Becoming Sunny

    • 60
    • 81

    Partly Sunny

    • 68
    • 85

    Mostly Cloudy

    • 71
    • 88

    Slight Chance Thunderstorms

    • 72
    • 90

    Chance Rain Showers

    • 68
    • 88

    Chance Thunderstorms

Today 28 Aug Portage

Partly cloudy with a chance of Showers this Morning, then mostly sunny this afternoon. Highs in the upper 70s. North Winds around 5 Mph. Chance of rain 30 percent.

Tonight 28 Aug Portage

Mostly clear. Lows in the lower 50s. North Winds around 5 Mph in the Evening, becoming light and variable.

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Round-up Lake Temperature Statistics

August Temperature

Portage County Airport (6.2 miles)

  • Lowest 4 August, 2026

    50.4 °F

  • Average August

    69.4 °F

  • Highest 5 August, 2026

    87.6 °F

Climate (2021–2026)

Portage County Airport (6.2 miles)

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  • Average Low 2021–2026

    40.5 °F

  • Average 2021–2026

    50 °F

  • Average High 2021–2026

    60 °F
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