Round Lake Weather Forecast

    • 41
    • 66

    Partly Sunny

    • 44
    • 66

    Partly Sunny

    • 52
    • 71

    Rain Showers

    • 53
    • 70

    Slight Chance Rain Showers

    • 54
    • 74

    Mostly Cloudy

    • 57
    • 79

    Partly Sunny

Today 20 May Ottawa

Mostly sunny. Highs in the mid 60s. North Winds 5 to 15 Mph with Gusts to around 25 Mph.

Tonight 20 May Ottawa

Partly cloudy. Lows in the lower 40s. North Winds 10 to 15 Mph becoming northeast 5 to 10 Mph after midnight. Gusts up to 25 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Round Lake Temperature Statistics

May Temperature

Grand Rapids, Gerald R. Ford International Airport (14.3 miles)

  • Lowest 12 May, 2026

    32.6 °F

  • Average May

    53.5 °F

  • Highest 17 May, 2026

    85.6 °F

Climate (2021–Present)

Grand Rapids, Gerald R. Ford International Airport (14.3 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    50.8 °F

  • Average High 2021–2026

    59.7 °F
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