Marston Weather Forecast

    • 73
    • 91

    Partly Sunny

    • 77
    • 93

    Becoming Sunny

    • 76
    • 95

    Mostly Sunny

    • 75
    • 92

    Slight Chance Thunderstorms

    • 73
    • 92

    Slight Chance Thunderstorms

    • 69
    • 88

    Partly Sunny

    • 67
    • 87

    Partly Sunny

Today 31 Aug Mercer

Mostly sunny. Hot. Near steady temperature in the upper 80s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 31 Aug Mercer

Mostly cloudy with a slight chance of Showers and Thunderstorms this Evening, then partly cloudy after midnight. Lows in the lower 70s. Southwest Winds around 5 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Marston Temperature Statistics

August Temperature

Moline Quad-City Airport (16.8 miles)

  • Lowest 24 August, 2026

    53.7 °F

  • Average August

    73.7 °F

  • Highest 10 August, 2026

    90.6 °F

Climate (2021–2026)

Moline Quad-City Airport (16.8 miles)

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  • Average Low 2021–2026

    42.8 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    64.1 °F
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