Cornish Flat Weather Forecast
- 54
- 74
Increasing Clouds
- 58
- 78
Partly Sunny
- 63
- 79
Rain Showers Likely
- 56
- 80
Chance Thunderstorms
- 53
- 77
Mostly Sunny
- 59
- 79
Partly Sunny
Today 25 Aug Sullivan
Partly sunny. Patchy fog this morning. A slight chance of Showers this afternoon. Highs in the mid 70s. Light and variable Winds. Chance of rain 20 percent.
Tonight 25 Aug Sullivan
Mostly clear. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds.
Cornish Flat Temperature Statistics
August Temperature
Lebanon Municipal Airport (8.7 miles)
Lowest 16 August, 2026
48.9 °FAverage August
69.8 °FHighest 6 August, 2026
90 °F
Climate (2021–2026)
Lebanon Municipal Airport (8.7 miles)
Average Low 2021–2026
37.9 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
59.7 °F