Ganntown Weather Forecast

    • 74
    • 92

    Slight Chance Thunderstorms

    • 75
    • 93

    Slight Chance Thunderstorms

    • 75
    • 94

    Mostly Sunny

    • 74
    • 93

    Mostly Sunny

    • 75
    • 92

    Slight Chance Thunderstorms

    • 76
    • 92

    Chance Thunderstorms

    • 74
    • 92

    Chance Thunderstorms

Today 21 Jul Johnson

Partly sunny with a slight chance of Showers and Thunderstorms. Near steady temperature in the upper 80s. Northeast Winds around 5 Mph. Chance of rain 20 percent.

Tonight 21 Jul Johnson

Mostly cloudy this Evening, then becoming partly cloudy. Patchy fog after midnight. Lows in the mid 70s. East Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Ganntown Temperature Statistics

July Temperature

Metropolis Municipal Airport (12.4 miles)

  • Lowest 2 July, 2025

    66.2 °F

  • Average July

    79.1 °F

  • Highest 5 July, 2025

    92.7 °F

Climate (2020–Present)

Metropolis Municipal Airport (12.4 miles)

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  • Average Low 2020–2025

    49.2 °F

  • Average 2020–2025

    59.4 °F

  • Average High 2020–2025

    69.7 °F
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