Round Knob Weather Forecast

    • 69
    • 87

    Rain Showers

    • 68
    • 84

    Rain Showers Likely

    • 69
    • 85

    Chance Thunderstorms

    • 69
    • 87

    Slight Chance Thunderstorms

    • 71
    • 88

    Mostly Sunny

    • 71
    • 89

    Slight Chance Thunderstorms

Today 11 Jul Massac

Partly sunny. A chance of Showers and Thunderstorms in the Morning, then Showers with Thunderstorms likely in the afternoon. Some Thunderstorms may produce heavy rainfall. Humid with Highs in the upper 80s. South Winds around 5 Mph. Chance of rain 80 percent.

Tonight 11 Jul Massac

Mostly cloudy. A chance of Showers and Thunderstorms in the Evening, then Showers likely after midnight. Some Thunderstorms may produce heavy rainfall in the evening. Lows in the upper 60s. Southwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

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Round Knob Temperature Statistics

July Temperature

Metropolis Municipal Airport (4.3 miles)

  • Lowest 8 July, 2026

    69.1 °F

  • Average July

    78 °F

  • Highest 3 July, 2026

    94.1 °F

Climate (2021–2026)

Metropolis Municipal Airport (4.3 miles)

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  • Average Low 2021–2026

    49.4 °F

  • Average 2021–2026

    59.6 °F

  • Average High 2021–2026

    70 °F
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