Monticello Dam Weather Forecast
- 58
- 94
Mostly Sunny
- 54
- 83
Mostly Sunny
- 54
- 84
Mostly Sunny
- 53
- 76
Partly Sunny
- 53
- 75
Mostly Sunny
- 58
- 81
Sunny
Today 5 Jun North Bay Interior Mountains
Sunny. Highs in the upper 70s to lower 90s. Northwest Winds 5 to 10 Mph with Gusts to around 25 Mph.
Tonight 5 Jun North Bay Interior Mountains
Mostly clear. Lows in the lower 60s. North Winds up to 5 Mph with Gusts to around 20 Mph.
Monticello Dam Temperature Statistics
June Temperature
Vacaville Nut Tree Airport (11.8 miles)
Lowest 1 June, 2026
52.6 °FAverage June
74.3 °FHighest 1 June, 2026
95.6 °F
Climate (2021–Present)
Vacaville Nut Tree Airport (11.8 miles)
Average Low 2021–2026
49.3 °FAverage 2021–2026
62.9 °FAverage High 2021–2026
76.9 °F