Mountain Bayou Lake Weather Forecast

    • 39
    • 57

    Becoming Sunny

    • 40
    • 67

    Mostly Sunny

    • 46
    • 64

    Mostly Sunny

    • 53
    • 73

    Partly Sunny

    • 49
    • 72

    Partly Sunny

    • 38
    • 59

    Partly Sunny

Today 9 Dec Evangeline

Patchy frost this morning. Mostly sunny. Highs in the upper 50s. East Winds around 5 Mph, becoming south this afternoon.

Tonight 9 Dec Evangeline

Mostly clear. Lows in the upper 30s. South Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mountain Bayou Lake Temperature Statistics

December Temperature

Opelousas St Landry Parish Airport (23.6 miles)

  • Lowest 3 December, 2025

    30.4 °F

  • Average December

    46.8 °F

  • Highest 7 December, 2025

    71.2 °F

Climate (2020–Present)

Opelousas St Landry Parish Airport (23.6 miles)

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  • Average Low 2020–2025

    58 °F

  • Average 2020–2025

    67.6 °F

  • Average High 2020–2025

    78.7 °F
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