Summit Lake Weather Forecast
- 54
- 85
Mostly Sunny
- 54
- 88
Mostly Sunny
- 54
- 85
Mostly Sunny
- 50
- 84
Partly Sunny
- 44
- 74
Breezy
- 37
- 67
Breezy
Today 22 Jun Humboldt County
Sunny. Highs 83 to 93. North Winds up to 10 Mph.
Tonight 22 Jun Humboldt County
Mostly clear. Lows 55 to 61. North Winds 5 to 10 Mph with Gusts to around 25 Mph.
Summit Lake Temperature Statistics
June Temperature
Alturas (77.1 miles)
Lowest 10 June, 2026
33.7 °FAverage June
63 °FHighest 18 June, 2026
96.7 °F
Climate (2021–2026)
Alturas (77.1 miles)
Average Low 2021–2026
33.5 °FAverage 2021–2026
49.6 °FAverage High 2021–2026
64.9 °F