Cornish Weather Forecast

    • 66
    • 92

    Chance Rain Showers

    • 65
    • 91

    Partly Sunny

    • 65
    • 92

    Partly Sunny

    • 66
    • 91

    Partly Sunny

    • 65
    • 90

    Slight Chance Rain Showers

    • 66
    • 91

    Slight Chance Rain Showers

Today 21 Sep Jefferson

Sunny. A slight chance of Showers in the afternoon. Highs in the lower 90s. Northeast Winds 5 to 10 Mph. Chance of rain 20 percent.

Tonight 21 Sep Jefferson

Mostly clear. Lows in the mid 60s. Northeast Winds 5 to 10 Mph.

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Cornish Temperature Statistics

September Temperature

Ardmore, Ardmore Downtown Executive Airport (26.7 miles)

  • Lowest 11 September, 2026

    69.6 °F

  • Average September

    85.7 °F

  • Highest 8 September, 2026

    102.2 °F

Climate (2021–2026)

Ardmore, Ardmore Downtown Executive Airport (26.7 miles)

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  • Average Low 2021–2026

    53.4 °F

  • Average 2021–2026

    64.7 °F

  • Average High 2021–2026

    76.9 °F
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