Round Lake Weather Forecast

    • 36
    • 55

    Increasing Clouds

    • 38
    • 47

    Chance Rain Showers

    • 43
    • 58

    Rain Showers

    • 33
    • 50

    Rain Showers

    • 31
    • 49

    Slight Chance Rain Showers

    • 30
    • 50

    Partly Sunny

Today 24 Apr Deuel

Partly sunny. Much cooler with Highs in the mid 50s. Northwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 24 Apr Deuel

Partly cloudy and much cooler. Near steady temperature in the mid 30s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Round Lake Temperature Statistics

April Temperature

Watertown, Watertown Municipal Airport (16.2 miles)

  • Lowest 6 April, 2026

    14.6 °F

  • Average April

    40.9 °F

  • Highest 16 April, 2026

    84.7 °F

Climate (2021–Present)

Watertown, Watertown Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    56 °F
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