Cornish Flat Weather Forecast

    • 49
    • 62

    Areas Fog

    • 52
    • 70

    Mostly Cloudy

    • 60
    • 76

    Mostly Cloudy

    • 50
    • 75

    Slight Chance Rain Showers

    • 43
    • 65

    Chance Rain Showers

    • 45
    • 62

    Chance Rain Showers

Today 29 Sep Sullivan

Mostly cloudy with a slight chance of rain this Morning, then partly sunny this afternoon. Patchy fog. Highs in the lower 60s. Light and variable Winds, becoming northwest around 10 Mph this afternoon. Chance of rain 20 percent.

Tonight 29 Sep Sullivan

Partly cloudy. Patchy fog. Lows in the upper 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cornish Flat Temperature Statistics

September Temperature

Lebanon Municipal Airport (8.7 miles)

  • Lowest 20 September, 2026

    39 °F

  • Average September

    59.3 °F

  • Highest 10 September, 2026

    82 °F

Climate (2021–2026)

Lebanon Municipal Airport (8.7 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    59.6 °F
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