Irmo Weather Forecast

    • 60
    • 84

    Sunny

    • 62
    • 86

    Mostly Sunny

    • 63
    • 86

    Slight Chance Thunderstorms

    • 62
    • 84

    Slight Chance Thunderstorms

    • 63
    • 85

    Mostly Sunny

    • 65
    • 88

    Mostly Sunny

Today 13 Sep Lexington

Sunny. Highs in the lower 80s. Northeast Winds 10 to 15 Mph.

Tonight 13 Sep Lexington

Clear. Lows in the upper 50s. Northeast Winds 5 to 10 Mph.

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Irmo Temperature Statistics

September Temperature

Columbia, Columbia Metropolitan Airport (10.6 miles)

  • Lowest 3 September, 2025

    57.9 °F

  • Average September

    74.1 °F

  • Highest 5 September, 2025

    91.9 °F

Climate (2020–Present)

Columbia, Columbia Metropolitan Airport (10.6 miles)

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  • Average Low 2020–2025

    54.8 °F

  • Average 2020–2025

    65.1 °F

  • Average High 2020–2025

    76.3 °F
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