Hillsdale Weather Forecast
- 56
- 79
Sunny
- 55
- 76
Mostly Sunny
- 57
- 80
Mostly Sunny
- 57
- 80
Mostly Sunny
- 55
- 73
Partly Sunny
- 55
- 72
Partly Sunny
- 58
- 73
Mostly Cloudy
Today 18 Oct San Francisco Bay Shoreline
Sunny. Highs in the mid 70s to lower 80s. Northwest Winds 5 to 10 Mph.
Tonight 18 Oct San Francisco Bay Shoreline
Mostly clear. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.
Hillsdale Temperature Statistics
October Temperature
San Carlos Airport (3.1 miles)
Lowest 14 October, 2025
48.2 °FAverage October
61.9 °FHighest 6 October, 2025
86 °F
Climate (2020–Present)
San Carlos Airport (3.1 miles)
Average Low 2020–2025
51.2 °FAverage 2020–2025
56.5 °FAverage High 2020–2025
68.1 °F