Onward Weather Forecast

    • 61
    • 75

    Increasing Clouds

    • 68
    • 90

    Rain Showers

    • 69
    • 84

    Rain Showers Likely

    • 68
    • 87

    Chance Rain Showers

    • 67
    • 83

    Partly Sunny

    • 67
    • 87

    Chance Rain Showers

    • 62
    • 82

    Chance Rain Showers

Today 14 Sep Cass

Mostly sunny. Near steady temperature in the lower 70s. Southeast Winds around 10 Mph.

Tonight 14 Sep Cass

Mostly clear. Lows in the lower 60s. Southeast Winds 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onward Temperature Statistics

September Temperature

Grissom Air Force Base / Peru (3.7 miles)

  • Lowest 7 September, 2026

    57.6 °F

  • Average September

    75.8 °F

  • Highest 3 September, 2026

    93 °F

Climate (2021–2026)

Grissom Air Force Base / Peru (3.7 miles)

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  • Average Low 2021–2026

    44 °F

  • Average 2021–2026

    53.1 °F

  • Average High 2021–2026

    62.4 °F
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