Rock Island Weather Forecast

    • 24
    • 41

    Mostly Sunny

    • 43
    • 57

    Mostly Cloudy

    • 47
    • 73

    Mostly Sunny

    • 51
    • 84

    Mostly Sunny

    • 55
    • 86

    Mostly Sunny

Today 16 Mar Le Flore

Sunny. Much cooler with Highs in the lower 40s. Northwest Winds 15 to 20 Mph with Gusts up to 35 Mph.

Tonight 16 Mar Le Flore

Mostly clear. Cold with Lows in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph, becoming south around 5 Mph after midnight.

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Rock Island Temperature Statistics

March Temperature

Fort Smith Regional Airport (11.8 miles)

  • Lowest 12 March, 2026

    34 °F

  • Average March

    65.4 °F

  • Highest 1 March, 2026

    82.7 °F

Climate (2021–Present)

Fort Smith Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    54 °F

  • Average 2021–2026

    64.5 °F

  • Average High 2021–2026

    75.8 °F
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