Round Lake Weather Forecast

    • 71
    • 90

    Chance Rain Showers

    • 69
    • 90

    Rain Showers Likely

    • 66
    • 85

    Chance Rain Showers

    • 64
    • 84

    Slight Chance Thunderstorms

    • 61
    • 82

    Mostly Sunny

    • 60
    • 81

    Partly Sunny

Today 1 Sep Clinton

Mostly sunny. Highs around 90. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the afternoon. Heat index Readings 94 to 99.

Tonight 1 Sep Clinton

Partly cloudy. A 30 percent chance of Showers and Thunderstorms after midnight. Lows in the lower 70s. Southwest Winds 5 to 10 Mph. Gusts up to 20 Mph in the evening.

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Round Lake Temperature Statistics

September Temperature

Capital Region International Airport (10.6 miles)

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  • Average September

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Climate (2021–2026)

Capital Region International Airport (10.6 miles)

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  • Average Low 2021–2026

    41.8 °F

  • Average 2021–2026

    50.9 °F

  • Average High 2021–2026

    60.1 °F
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