Cornish Flat Weather Forecast
- 59
- 80
Increasing Clouds
- 59
- 81
Mostly Sunny
- 57
- 81
Chance Rain Showers
- 52
- 73
Mostly Sunny
- 53
- 75
Partly Sunny
- 57
- 77
Mostly Cloudy
Today 11 Aug Sullivan
Mostly sunny. Highs in the upper 70s. Northwest Winds around 10 Mph.
Tonight 11 Aug Sullivan
Partly cloudy. Lows in the upper 50s. Northwest Winds around 10 Mph in the Evening, becoming light and variable.
Cornish Flat Temperature Statistics
August Temperature
Lebanon Municipal Airport (8.7 miles)
Lowest 4 August, 2026
54 °FAverage August
73.2 °FHighest 6 August, 2026
90 °F
Climate (2021–2026)
Lebanon Municipal Airport (8.7 miles)
Average Low 2021–2026
37.9 °FAverage 2021–2026
48.8 °FAverage High 2021–2026
59.7 °F