Cornish Flat Weather Forecast
- 63
- 76
Rain Showers
- 55
- 80
Chance Thunderstorms
- 53
- 75
Mostly Sunny
- 56
- 80
Mostly Sunny
- 60
- 84
Mostly Sunny
- 62
- 85
Chance Rain Showers
Today 21 Jul Sullivan
Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Highs in the mid 70s. South Winds around 10 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.
Tonight 21 Jul Sullivan
A chance of Thunderstorms. Showers, mainly in the evening. Some Thunderstorms may produce heavy rainfall. Lows in the lower 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.
Cornish Flat Temperature Statistics
July Temperature
Lebanon Municipal Airport (8.7 miles)
Lowest 12 July, 2026
50 °FAverage July
71.4 °FHighest 2 July, 2026
95 °F
Climate (2021–2026)
Lebanon Municipal Airport (8.7 miles)
Average Low 2021–2026
38 °FAverage 2021–2026
48.7 °FAverage High 2021–2026
59.7 °F