Byron Weather Forecast

    • 58
    • 85

    Slight Chance Thunderstorms

    • 53
    • 78

    Partly Sunny

    • 57
    • 78

    Mostly Cloudy

    • 61
    • 83

    Chance Rain Showers

    • 60
    • 79

    Chance Rain Showers

    • 57
    • 79

    Chance Rain Showers

Today 18 Sep Shiawassee

Mostly sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 80s. Northwest Winds up to 10 Mph. Chance of rain 20 percent.

Tonight 18 Sep Shiawassee

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. Northeast Winds up to 5 Mph.

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Byron Temperature Statistics

September Temperature

Howell, Livingston County Airport (13 miles)

  • Lowest 8 September, 2025

    39.2 °F

  • Average September

    62.2 °F

  • Highest 14 September, 2025

    82.4 °F

Climate (2020–Present)

Howell, Livingston County Airport (13 miles)

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  • Average Low 2020–2025

    41.3 °F

  • Average 2020–2025

    50.3 °F

  • Average High 2020–2025

    59.2 °F
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