Round Lake Weather Forecast

    • 60
    • 80

    Chance Rain Showers

    • 59
    • 72

    Rain Showers Likely

    • 55
    • 76

    Chance Rain Showers

    • 55
    • 73

    Rain Showers Likely

    • 59
    • 75

    Rain Showers Likely

    • 51
    • 71

    Slight Chance Thunderstorms

Today 15 Sep Clinton

Rain Showers likely and a slight chance of Thunderstorms in the Morning, then a chance of rain Showers and a slight chance of Thunderstorms in the afternoon. Highs around 80. South Winds 10 to 15 Mph with Gusts to around 30 Mph. Chance of rain 70 percent.

Tonight 15 Sep Clinton

Partly cloudy with a chance of rain Showers and a slight chance of Thunderstorms in the Evening, then mostly cloudy with a slight chance of rain Showers after midnight. Lows in the upper 50s. West Winds around 10 Mph with Gusts to around 25 Mph in the evening becoming light. Chance of rain 40 percent.

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Round Lake Temperature Statistics

September Temperature

Capital Region International Airport (10.6 miles)

  • Lowest 11 September, 2026

    49.6 °F

  • Average September

    71.2 °F

  • Highest 2 September, 2026

    91.7 °F

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

    60.2 °F
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