Marston Weather Forecast

    • 75
    • 89

    Partly Sunny

    • 75
    • 93

    Mostly Sunny

    • 72
    • 90

    Chance Thunderstorms

    • 70
    • 84

    Chance Thunderstorms

    • 72
    • 87

    Slight Chance Thunderstorms

    • 73
    • 91

    Mostly Sunny

    • 73
    • 92

    Slight Chance Thunderstorms

Today 22 Jul Mercer

Mostly sunny. Highs in the upper 80s. Southeast Winds around 10 Mph.

Tonight 22 Jul Mercer

Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Lows in the mid 70s. Southeast Winds around 10 Mph. Chance of rain 20 percent.

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Marston Temperature Statistics

July Temperature

Moline Quad-City Airport (16.8 miles)

  • Lowest 2 July, 2025

    62.7 °F

  • Average July

    76.6 °F

  • Highest 3 July, 2025

    91.7 °F

Climate (2020–Present)

Moline Quad-City Airport (16.8 miles)

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  • Average Low 2020–2025

    42.8 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    63.6 °F
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