Round Lake Weather Forecast

    • 57
    • 76

    Rain Showers

    • 54
    • 81

    Chance Rain Showers

    • 57
    • 85

    Mostly Cloudy

    • 57
    • 85

    Rain Showers Likely

    • 55
    • 81

    Chance Rain Showers

    • 55
    • 81

    Chance Rain Showers

Today 31 May Roberts

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms this Morning, then a chance of Thunderstorms this afternoon. Highs in the mid 70s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 50 percent.

Tonight 31 May Roberts

Mostly cloudy with a chance of Thunderstorms. Showers likely after midnight. Lows in the upper 50s. Southeast Winds 15 to 20 Mph with Gusts up to 30 Mph, Diminishing to 5 to 10 Mph with Gusts up to 20 Mph after midnight. Chance of rain 70 percent.

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Round Lake Temperature Statistics

May Temperature

Wheaton Municipal Airport (7.5 miles)

  • Lowest 6 May, 2026

    28.4 °F

  • Average May

    57.9 °F

  • Highest 25 May, 2026

    93.2 °F

Climate (2021–Present)

Wheaton Municipal Airport (7.5 miles)

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  • Average Low 2021–2026

    34.7 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    54.5 °F
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