Brest Bay Weather Forecast

    • 64
    • 78

    Mostly Sunny

    • 62
    • 71

    Partly Sunny

    • 63
    • 69

    Partly Sunny

    • 66
    • 77

    Mostly Cloudy

    • 65
    • 75

    Chance Rain Showers

    • 63
    • 75

    Chance Rain Showers

Today 18 Sep Monroe

Mostly sunny. Highs in the mid 80s. West Winds up to 5 Mph, becoming north in the afternoon.

Tonight 18 Sep Monroe

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

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Brest Bay Temperature Statistics

September Temperature

Monroe, Custer Airport (6.8 miles)

  • Lowest 7 September, 2025

    41 °F

  • Average September

    61.8 °F

  • Highest 3 September, 2025

    82.4 °F

Climate (2020–Present)

Monroe, Custer Airport (6.8 miles)

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  • Average Low 2020–2025

    42.2 °F

  • Average 2020–2025

    51.3 °F

  • Average High 2020–2025

    60.2 °F
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