Round Lake Weather Forecast

    • 49
    • 85

    Rain Showers

    • 39
    • 61

    Partly Sunny

    • 43
    • 62

    Partly Sunny

    • 52
    • 67

    Rain Showers Likely

    • 54
    • 70

    Chance Rain Showers

    • 56
    • 75

    Chance Rain Showers

Today 19 May Clinton

Showers and a chance of Thunderstorms. Highs in the mid 80s. Southwest Winds 15 to 25 Mph with Gusts to around 35 Mph. Chance of rain 90 percent.

Tonight 19 May Clinton

Rain Showers and a chance of Thunderstorms in the evening. Lows in the upper 40s. West Winds 10 to 15 Mph with Gusts to around 30 Mph becoming northwest with Gusts to around 20 Mph after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

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Round Lake Temperature Statistics

May Temperature

Capital Region International Airport (10.6 miles)

  • Lowest 2 May, 2026

    29.6 °F

  • Average May

    51.9 °F

  • Highest 16 May, 2026

    82 °F

Climate (2021–Present)

Capital Region International Airport (10.6 miles)

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  • Average Low 2021–2026

    41.9 °F

  • Average 2021–2026

    51 °F

  • Average High 2021–2026

    60.2 °F
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