Upper Lake Weather Forecast
- 49
- 80
Decreasing Clouds
- 50
- 85
Mostly Sunny
- 49
- 84
Mostly Sunny
- 49
- 83
Mostly Sunny
- 50
- 82
Mostly Sunny
- 52
- 85
Sunny
Today 22 Jul Southern Lake County
Partly cloudy in the morning then clearing. Highs 71 to 82.
Tonight 22 Jul Southern Lake County
Partly cloudy. Lows 50 to 60.
Upper Lake Temperature Statistics
July Temperature
Ukiah Municipal Airport (15.5 miles)
Lowest 5 July, 2025
48.7 °FAverage July
75.2 °FHighest 11 July, 2025
105.7 °F
Climate (2020–Present)
Ukiah Municipal Airport (15.5 miles)
Average Low 2020–2025
46.8 °FAverage 2020–2025
60.8 °FAverage High 2020–2025
76.3 °F