Round Lake Weather Forecast

    • 39
    • 59

    Becoming Sunny

    • 38
    • 63

    Mostly Sunny

    • 50
    • 69

    Mostly Sunny

    • 58
    • 80

    Slight Chance Thunderstorms

    • 56
    • 80

    Partly Sunny

    • 54
    • 76

    Slight Chance Thunderstorms

Today 5 Sep Brookings

Mostly sunny this Morning, then mostly cloudy with a chance of Sprinkles this afternoon. Cooler with Highs in the upper 50s. Northwest Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 5 Sep Brookings

Partly cloudy with a chance of Sprinkles in the Evening, then clear after midnight. Lows in the upper 30s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming west around 5 Mph after midnight.

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Round Lake Temperature Statistics

September Temperature

Brookings, Brookings Municipal Airport (12.4 miles)

  • Lowest 3 September, 2025

    46 °F

  • Average September

    62.6 °F

  • Highest 2 September, 2025

    79 °F

Climate (2020–Present)

Brookings, Brookings Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    35.1 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    55.4 °F
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