Millersburg Weather Forecast

    • 62
    • 81

    Rain Showers

    • 56
    • 67

    Rain Showers

    • 50
    • 62

    Chance Rain Showers

    • 46
    • 60

    Mostly Cloudy

    • 50
    • 64

    Mostly Cloudy

    • 53
    • 66

    Mostly Cloudy

Today 19 Sep Iowa

Patchy fog in the morning. Mostly cloudy with Showers and Thunderstorms likely in the Morning, then partly sunny with a chance of Showers and Thunderstorms in the afternoon. Humid with Highs in the lower 80s. South Winds 5 to 10 Mph, becoming southwest in the afternoon. Chance of rain 70 percent.

Tonight 19 Sep Iowa

Showers likely with a chance of Thunderstorms. Humid with Lows in the lower 60s. North Winds 5 to 10 Mph. Chance of rain 70 percent.

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Millersburg Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (29.2 miles)

  • Lowest 13 September, 2026

    55 °F

  • Average September

    75.4 °F

  • Highest 3 September, 2026

    96.8 °F

Climate (2021–2026)

Oskaloosa, Oskaloosa Municipal Airport (29.2 miles)

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  • Average Low 2021–2026

    43.9 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    65.2 °F
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