Passaic Weather Forecast

    • 66
    • 93

    Slight Chance Thunderstorms

    • 65
    • 91

    Chance Thunderstorms

    • 63
    • 90

    Rain Showers Likely

    • 61
    • 81

    Chance Thunderstorms

    • 59
    • 80

    Chance Rain Showers

    • 58
    • 80

    Slight Chance Thunderstorms

Today 15 Sep Bates

Mostly cloudy Early, then becoming mostly sunny. A slight chance of Showers early. A slight chance of Showers and Thunderstorms this afternoon. Highs in the lower 90s. South Winds around 5 Mph. Chance of rain 20 percent.

Tonight 15 Sep Bates

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly clear after midnight. Lows in the mid 60s. South Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 20 percent.

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Passaic Temperature Statistics

September Temperature

Clinton, MO (36 miles)

  • Lowest 6 September, 2025

    44.6 °F

  • Average September

    69.1 °F

  • Highest 12 September, 2025

    96.8 °F

Climate (2020–Present)

Clinton, MO (36 miles)

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  • Average Low 2020–2025

    46.3 °F

  • Average 2020–2025

    57.1 °F

  • Average High 2020–2025

    67.9 °F
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