Lamar Weather Forecast

    • 51
    • 83

    Becoming Sunny

    • 54
    • 88

    Mostly Sunny

    • 57
    • 92

    Sunny

    • 51
    • 94

    Mostly Sunny

    • 41
    • 73

    Mostly Sunny

    • 47
    • 74

    Partly Sunny

Today 19 Mar Southern Johnson County

Mostly sunny. Not as cool with Highs in the lower 80s. Northeast Winds around 5 Mph, becoming south around 5 Mph this afternoon.

Tonight 19 Mar Southern Johnson County

Mostly clear. Lows in the lower 50s. Southeast Winds around 5 Mph in the Evening, becoming light and variable.

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Lamar Temperature Statistics

March Temperature

Russelville Municipal Airport (20.5 miles)

  • Lowest 16 March, 2026

    30.9 °F

  • Average March

    60.8 °F

  • Highest 5 March, 2026

    80.7 °F

Climate (2021–Present)

Russelville Municipal Airport (20.5 miles)

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  • Average Low 2021–2026

    52.1 °F

  • Average 2021–2026

    63.4 °F

  • Average High 2021–2026

    75.1 °F
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