Oskaloosa Weather Forecast

    • 72
    • 97

    Hot

    • 70
    • 94

    Chance Rain Showers

    • 71
    • 96

    Partly Sunny

    • 67
    • 93

    Partly Sunny

    • 63
    • 87

    Chance Thunderstorms

    • 60
    • 82

    Slight Chance Rain Showers

Today 17 Sep Clay

Sunny, hot with Highs in the upper 90s. West Winds around 5 Mph. Heat index Values up to 103.

Tonight 17 Sep Clay

Partly cloudy. Humid with Lows in the lower 70s. Southwest Winds around 5 Mph, becoming north after midnight.

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Oskaloosa Temperature Statistics

September Temperature

Flora Municipal Airport (11.8 miles)

  • Lowest 8 September, 2026

    57.2 °F

  • Average September

    79 °F

  • Highest 2 September, 2026

    100.4 °F

Climate (2021–2026)

Flora Municipal Airport (11.8 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    56.4 °F

  • Average High 2021–2026

    66.5 °F
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