St Helena Weather Forecast
- 57
- 87
Increasing Clouds
- 63
- 87
Partly Sunny
- 60
- 81
Partly Sunny
- 66
- 99
Hot
- 61
- 100
Hot
- 57
- 93
Mostly Sunny
- 57
- 88
Mostly Sunny
Today 1 Jun North Bay Interior Valleys
Sunny. Highs in the lower 70s to mid 80s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.
Tonight 1 Jun North Bay Interior Valleys
Mostly clear in the evening then becoming partly cloudy. Lows in the 50s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.
St Helena Temperature Statistics
June Temperature
Petaluma Municipal Airport (18 miles)
Lowest
–Average June
–Highest
–
Climate (2019–Present)
Petaluma Municipal Airport (18 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
44.9 °FAverage 2019–2024
55.9 °FAverage High 2019–2024
69.9 °F