St Joseph Weather Forecast

    • 52
    • 65

    Chance Rain Showers

    • 47
    • 64

    Becoming Sunny

    • 51
    • 70

    Mostly Sunny

    • 56
    • 76

    Partly Sunny

    • 57
    • 77

    Mostly Sunny

    • 53
    • 76

    Mostly Sunny

    • 54
    • 76

    Partly Sunny

Today 6 Sep Northern Berrien

Partly cloudy. Near steady temperature in the lower 60s. West Winds 10 to 15 Mph.

Tonight 6 Sep Northern Berrien

Mostly cloudy with a 50 percent chance of Showers. Lows in the upper 40s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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St Joseph Temperature Statistics

September Temperature

Southwest Michigan Regional Airport (3.7 miles)

  • Lowest 4 September, 2025

    51.1 °F

  • Average September

    61.8 °F

  • Highest 3 September, 2025

    72 °F

Climate (2020–Present)

Southwest Michigan Regional Airport (3.7 miles)

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  • Average Low 2020–2025

    43.5 °F

  • Average 2020–2025

    52.1 °F

  • Average High 2020–2025

    60.6 °F
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