San Francisco Bay - Sulphur Creek Entrance Weather Forecast
- 58
- 78
Mostly Sunny
- 57
- 77
Mostly Sunny
- 56
- 67
Mostly Cloudy
- 55
- 68
Partly Sunny
- 58
- 68
Chance Rain
- 56
- 66
Chance Rain
- 57
- 65
Chance Rain
Today 20 Oct San Francisco Bay Shoreline
Sunny. Highs near 80. Northeast Winds 5 to 10 Mph.
Tonight 20 Oct San Francisco Bay Shoreline
Mostly clear. Lows in the upper 50s. North Winds 5 to 10 Mph.
San Francisco Bay - Sulphur Creek Entrance Temperature Statistics
October Temperature
Hayward, Hayward Air Terminal (1.9 miles)
Lowest 14 October, 2025
50 °FAverage October
62.7 °FHighest 6 October, 2025
84 °F
Climate (2020–Present)
Hayward, Hayward Air Terminal (1.9 miles)
Average Low 2020–2025
52 °FAverage 2020–2025
59.2 °FAverage High 2020–2025
68.9 °F