Martinsburg Weather Forecast

    • 49
    • 68

    Partly Sunny

    • 61
    • 84

    Mostly Cloudy

    • 35
    • 76

    Rain Likely

    • 31
    • 51

    Chance Rain/Snow

    • 36
    • 47

    Chance Rain

    • 43
    • 63

    Chance Rain

Today 29 Mar Keokuk

Mostly sunny. Warmer with Highs in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 29 Mar Keokuk

Partly cloudy and not as cool. Near steady temperature in the upper 30s. South Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Martinsburg Temperature Statistics

March Temperature

Ottumwa Regional Airport (11.2 miles)

  • Lowest 17 March, 2026

    4.6 °F

  • Average March

    46.4 °F

  • Highest 21 March, 2026

    91.7 °F

Climate (2021–Present)

Ottumwa Regional Airport (11.2 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    52.6 °F

  • Average High 2021–2026

    63.2 °F
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