Allen Weather Forecast

    • 41
    • 68

    Becoming Sunny

    • 46
    • 72

    Mostly Sunny

    • 50
    • 78

    Mostly Sunny

    • 53
    • 82

    Mostly Sunny

    • 49
    • 79

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

Today 7 Sep Washtenaw

Mostly sunny in the Morning, then becoming partly cloudy. Highs in the upper 60s. West Winds 5 to 10 Mph.

Tonight 7 Sep Washtenaw

Clear. Lows around 40. Northwest Winds up to 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Allen Temperature Statistics

September Temperature

Ann Arbor, Ann Arbor Municipal Airport (1.9 miles)

  • Lowest 1 September, 2025

    44.1 °F

  • Average September

    61.1 °F

  • Highest 3 September, 2025

    81 °F

Climate (2020–Present)

Ann Arbor, Ann Arbor Municipal Airport (1.9 miles)

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

  • Average Low 2020–2025

    39.4 °F

  • Average 2020–2025

    49.8 °F

  • Average High 2020–2025

    60.1 °F
Get WillyWeather+ to remove ads