Delta Weather Forecast

    • 73
    • 96

    Mostly Sunny

    • 70
    • 95

    Partly Sunny

    • 66
    • 88

    Chance Rain Showers

    • 69
    • 87

    Partly Sunny

    • 74
    • 95

    Chance Thunderstorms

    • 66
    • 91

    Chance Rain Showers

    • 63
    • 84

    Partly Sunny

Today 4 Sep Keokuk

Sunny, hot. Near steady temperature in the mid 90s. Southwest Winds around 10 Mph. Heat index Values up to 104.

Tonight 4 Sep Keokuk

Mostly clear. Lows in the lower 70s. Southwest Winds around 5 Mph. Heat index Values up to 100 early this evening.

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Delta Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (10.6 miles)

  • Lowest 1 September, 2026

    71.6 °F

  • Average September

    83.1 °F

  • Highest 2 September, 2026

    96.1 °F

Climate (2021–2026)

Oskaloosa, Oskaloosa Municipal Airport (10.6 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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