Delta Weather Forecast

    • 63
    • 82

    Rain Showers Likely

    • 58
    • 79

    Chance Thunderstorms

    • 62
    • 81

    Chance Rain Showers

    • 62
    • 80

    Chance Thunderstorms

    • 58
    • 81

    Chance Thunderstorms

    • 55
    • 78

    Chance Rain Showers

Today 18 Sep Keokuk

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms. Highs in the lower 80s. South Winds around 5 Mph. Chance of rain 50 percent.

Tonight 18 Sep Keokuk

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

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Delta Temperature Statistics

September Temperature

Oskaloosa, Oskaloosa Municipal Airport (10.6 miles)

  • Lowest 7 September, 2025

    43 °F

  • Average September

    69.8 °F

  • Highest 13 September, 2025

    99 °F

Climate (2020–Present)

Oskaloosa, Oskaloosa Municipal Airport (10.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    53.8 °F

  • Average High 2020–2025

    64.6 °F
Get WillyWeather+ to remove ads