Geismar Weather Forecast

    • 35
    • 59

    Mostly Sunny

    • 45
    • 59

    Mostly Cloudy

    • 53
    • 65

    Rain Showers Likely

    • 53
    • 69

    Slight Chance Rain Showers

    • 49
    • 70

    Mostly Cloudy

    • 38
    • 58

    Rain Showers Likely

Today 19 Jan Western Ascension

Widespread frost this morning. Sunny. Not as cool with Highs around 60. Northeast Winds around 5 Mph.

Tonight 19 Jan Western Ascension

Mostly clear. Lows in the mid 30s. Light and variable Winds, becoming northeast around 5 Mph after midnight.

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  • Temperature Real-Time

Geismar Temperature Statistics

January Temperature

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (23 miles)

  • Lowest 16 January, 2026

    32 °F

  • Average January

    59.2 °F

  • Highest 8 January, 2026

    81 °F

Climate (2021–Present)

Baton Rouge, Baton Rouge Metropolitan, Ryan Field (23 miles)

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  • Average Low 2021–2026

    60.5 °F

  • Average 2021–2026

    70.5 °F

  • Average High 2021–2026

    81.2 °F
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