Lanark Weather Forecast

    • 44
    • 64

    Increasing Clouds

    • 29
    • 60

    Mostly Sunny

    • 35
    • 49

    Sunny

    • 33
    • 59

    Mostly Sunny

    • 27
    • 50

    Mostly Sunny

    • 34
    • 54

    Mostly Sunny

    • 31
    • 57

    Partly Sunny

Today 13 Jan Cass

Mostly cloudy. Near steady temperature in the lower 60s. Southwest Winds 5 to 10 Mph.

Tonight 13 Jan Cass

Mostly cloudy in the Evening, then becoming partly cloudy. Lows in the mid 40s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

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Lanark Temperature Statistics

January Temperature

Texarkana, Texarkana Regional-Webb Field (21.1 miles)

  • Lowest 11 January, 2026

    37.9 °F

  • Average January

    58.5 °F

  • Highest 6 January, 2026

    79 °F

Climate (2021–Present)

Texarkana, Texarkana Regional-Webb Field (21.1 miles)

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  • Average Low 2021–2026

    58 °F

  • Average 2021–2026

    68.1 °F

  • Average High 2021–2026

    78.6 °F
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