Duncan Weather Forecast

    • 67
    • 92

    Mostly Sunny

    • 64
    • 89

    Rain Showers

    • 63
    • 77

    Rain Showers

    • 64
    • 80

    Rain Showers

    • 64
    • 82

    Rain Showers Likely

    • 65
    • 83

    Rain Showers Likely

Today 20 May Northern Spartanburg

Sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 20 May Northern Spartanburg

Partly cloudy. Lows in the upper 60s. Southwest Winds 5 to 10 Mph in the Evening, becoming light and variable.

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Duncan Temperature Statistics

May Temperature

Greer, Greenville-Spartanburg Airport (5.6 miles)

  • Lowest 15 May, 2026

    41.6 °F

  • Average May

    64.6 °F

  • Highest 17 May, 2026

    88.6 °F

Climate (2021–Present)

Greer, Greenville-Spartanburg Airport (5.6 miles)

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  • Average Low 2021–2026

    51.7 °F

  • Average 2021–2026

    62 °F

  • Average High 2021–2026

    73.2 °F
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