Lewiston Lake Weather Forecast
- 58
- 89
Mostly Sunny
- 56
- 90
Sunny
- 60
- 94
Mostly Sunny
- 60
- 91
Partly Sunny
- 58
- 82
Slight Chance Rain Showers
- 57
- 84
Slight Chance Rain Showers
- 58
- 87
Mostly Sunny
Today 15 Sep Northern Trinity
Sunny. Highs 84 to 99.
Tonight 15 Sep Northern Trinity
Clear. Lows 52 to 62.
Lewiston Lake Temperature Statistics
September Temperature
Weaverville (6.8 miles)
Lowest 1 September, 2025
51.8 °FAverage September
70.9 °FHighest 1 September, 2025
96.8 °F
Climate (2023–Present)
Weaverville (6.8 miles)
Average Low 2023–2025
42.9 °FAverage 2023–2025
57.2 °FAverage High 2023–2025
71.2 °F