Cornish Flat Weather Forecast

    • 59
    • 79

    Chance Rain Showers

    • 61
    • 81

    Partly Sunny

    • 56
    • 79

    Partly Sunny

    • 57
    • 79

    Partly Sunny

    • 60
    • 78

    Chance Rain Showers

    • 59
    • 75

    Rain Showers Likely

Today 18 Aug Sullivan

Partly sunny. Patchy fog this morning. A chance of Showers this Morning, then a slight chance of Showers and Thunderstorms this afternoon. Highs in the upper 70s. Light and variable Winds. Chance of rain 40 percent.

Tonight 18 Aug Sullivan

Partly cloudy. Patchy fog after midnight. Lows in the upper 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornish Flat Temperature Statistics

August Temperature

Lebanon Municipal Airport (8.7 miles)

  • Lowest 15 August, 2026

    52 °F

  • Average August

    70.9 °F

  • Highest 6 August, 2026

    90 °F

Climate (2021–2026)

Lebanon Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    37.9 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    59.7 °F
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