Grassy Lake Weather Forecast

    • 25
    • 49

    Becoming Sunny

    • 29
    • 48

    Mostly Sunny

    • 46
    • 60

    Mostly Cloudy

    • 56
    • 70

    Chance Rain Showers

    • 52
    • 77

    Slight Chance Rain Showers

    • 51
    • 70

    Partly Sunny

Today 14 Dec St. Landry

Partly sunny this Morning, then clearing. Much cooler with Highs in the upper 40s. Temperature falling into the lower 40s this afternoon. North Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 14 Dec St. Landry

Clear. Much Colder with Lows in the mid 20s. North Winds 15 to 20 Mph, becoming northeast 5 to 10 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Grassy Lake Temperature Statistics

December Temperature

Opelousas St Landry Parish Airport (9.3 miles)

  • Lowest 3 December, 2025

    30.4 °F

  • Average December

    47.9 °F

  • Highest 10 December, 2025

    73.8 °F

Climate (2020–Present)

Opelousas St Landry Parish Airport (9.3 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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