Cornish Weather Forecast

    • 66
    • 91

    Chance Thunderstorms

    • 69
    • 90

    Slight Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 69
    • 90

    Chance Thunderstorms

    • 65
    • 90

    Chance Thunderstorms

    • 62
    • 84

    Slight Chance Rain Showers

Today 18 Sep Jefferson

Sunny. A slight chance of Showers and Thunderstorms in the afternoon. Highs in the lower 90s. South Winds around 5 Mph, becoming southwest in the afternoon. Chance of rain 20 percent.

Tonight 18 Sep Jefferson

Mostly clear. Lows in the upper 60s. South Winds around 5 Mph.

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Cornish Temperature Statistics

September Temperature

Ardmore, Ardmore Downtown Executive Airport (26.7 miles)

  • Lowest 8 September, 2025

    55.8 °F

  • Average September

    74.7 °F

  • Highest 15 September, 2025

    94.5 °F

Climate (2020–Present)

Ardmore, Ardmore Downtown Executive Airport (26.7 miles)

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  • Average Low 2020–2025

    52.6 °F

  • Average 2020–2025

    63.6 °F

  • Average High 2020–2025

    75.4 °F
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