Harlem Weather Forecast

    • 63
    • 90

    Mostly Sunny

    • 65
    • 90

    Partly Sunny

    • 68
    • 91

    Slight Chance Thunderstorms

    • 67
    • 91

    Chance Thunderstorms

Today 18 May Columbia

Partly sunny in the Morning, then clearing. Highs in the lower 90s. Southeast Winds around 5 Mph.

Tonight 18 May Columbia

Partly cloudy. Lows in the upper 60s. South Winds around 5 Mph.

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Harlem Temperature Statistics

May Temperature

Thomson, Thomson-McDuffie County Airport (13.7 miles)

  • Lowest 4 May, 2026

    42.8 °F

  • Average May

    66.1 °F

  • Highest 6 May, 2026

    89.6 °F

Climate (2021–Present)

Thomson, Thomson-McDuffie County Airport (13.7 miles)

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  • Average Low 2021–2026

    53.7 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.5 °F
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