Martinsburg Weather Forecast

    • 61
    • 85

    Slight Chance Thunderstorms

    • 61
    • 73

    Mostly Cloudy

    • 70
    • 80

    Rain Showers Likely

    • 69
    • 87

    Chance Thunderstorms

    • 70
    • 83

    Chance Thunderstorms

    • 72
    • 88

    Slight Chance Thunderstorms

    • 74
    • 93

    Slight Chance Thunderstorms

Today 16 Jul Keokuk

Partly sunny. Near steady temperature in the lower 80s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 16 Jul Keokuk

Partly cloudy this Evening, then becoming mostly cloudy. Cooler with Lows around 60. Northwest Winds 10 to 15 Mph.

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  • Temperature Real-Time

Martinsburg Temperature Statistics

July Temperature

Ottumwa Regional Airport (11.2 miles)

  • Lowest 14 July, 2025

    62.1 °F

  • Average July

    76.1 °F

  • Highest 3 July, 2025

    89.1 °F

Climate (2020–Present)

Ottumwa Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    41.7 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    62.5 °F
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