Mercer Weather Forecast

    • 71
    • 83

    Chance Thunderstorms

    • 71
    • 89

    Chance Thunderstorms

    • 72
    • 86

    Chance Thunderstorms

    • 72
    • 89

    Chance Thunderstorms

    • 73
    • 91

    Mostly Sunny

    • 73
    • 93

    Slight Chance Thunderstorms

Today 18 Jul Mercer

Partly sunny with a slight chance of Showers and Thunderstorms. Highs in the mid 80s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 18 Jul Mercer

Partly cloudy in the Evening, then becoming mostly cloudy. A chance of Showers and Thunderstorms. Lows in the lower 70s. Southeast Winds around 5 Mph. Chance of rain 40 percent.

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Mercer Temperature Statistics

July Temperature

Lamoni, Lamoni Municipal Airport (20.5 miles)

  • Lowest 1 July, 2025

    61 °F

  • Average July

    76.6 °F

  • Highest 4 July, 2025

    88.6 °F

Climate (2020–Present)

Lamoni, Lamoni Municipal Airport (20.5 miles)

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  • Average Low 2020–2025

    43.2 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.1 °F
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