Oskaloosa Weather Forecast

    • 66
    • 93

    Rain Showers Likely

    • 61
    • 77

    Chance Rain Showers

    • 53
    • 69

    Mostly Cloudy

    • 50
    • 66

    Partly Sunny

    • 53
    • 69

    Mostly Cloudy

    • 59
    • 73

    Chance Rain Showers

    • 61
    • 76

    Slight Chance Rain Showers

Today 19 Sep Jefferson

Mostly cloudy with a chance of Showers in the Morning, then partly sunny with a slight chance of Showers in the afternoon. Highs in the upper 70s. Chance of rain 30 percent.

Tonight 19 Sep Jefferson

Mostly cloudy. Showers likely with a chance of Thunderstorms this Evening, then a chance of Showers and Thunderstorms after midnight. Some Thunderstorms may be severe with damaging Winds and large hail this evening. Lows in the mid 60s. Southwest Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 70 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Oskaloosa Temperature Statistics

September Temperature

Lawrence, Lawrence Municipal Airport (14.9 miles)

  • Lowest 11 September, 2026

    61.6 °F

  • Average September

    81 °F

  • Highest 8 September, 2026

    103.6 °F

Climate (2021–2026)

Lawrence, Lawrence Municipal Airport (14.9 miles)

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

  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    57.2 °F

  • Average High 2021–2026

    69.8 °F
Get WillyWeather+ to remove ads