Round Lake Weather Forecast

    • 43
    • 56

    Chance Rain Showers

    • 51
    • 62

    Chance Rain Showers

    • 40
    • 73

    Chance Rain Showers

    • 39
    • 59

    Mostly Sunny

    • 57
    • 74

    Partly Sunny

    • 58
    • 74

    Mostly Cloudy

    • 57
    • 75

    Mostly Cloudy

Today 16 Dec La Salle

Mostly cloudy. Highs in the mid 50s. South Winds around 5 Mph.

Tonight 16 Dec La Salle

Cloudy. A slight chance of Showers after midnight. Not as cool with Lows in the mid 40s. Southeast Winds around 5 Mph. Chance of rain 20 percent.

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Round Lake Temperature Statistics

December Temperature

Alexandria Esler Regional Airport (17.4 miles)

  • Lowest 14 December, 2025

    28 °F

  • Average December

    46.8 °F

  • Highest 13 December, 2025

    80.1 °F

Climate (2020–Present)

Alexandria Esler Regional Airport (17.4 miles)

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  • Average Low 2020–2025

    56.3 °F

  • Average 2020–2025

    67.4 °F

  • Average High 2020–2025

    79.8 °F
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