Castro City Weather Forecast
- 54
- 78
Increasing Clouds
- 55
- 74
Chance Rain
- 51
- 69
Rain Likely
- 48
- 66
Rain Showers Likely
- 47
- 63
Chance Rain Showers
- 46
- 68
Mostly Sunny
Today 8 Apr San Francisco Bay Shoreline
Sunny. Highs in the lower to mid 70s. Southwest Winds around 5 Mph. Becoming west in the afternoon.
Tonight 8 Apr San Francisco Bay Shoreline
Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph in the evening. Becoming light.
Castro City Temperature Statistics
April Temperature
Palo Alto Airport (4.3 miles)
Lowest 3 April, 2026
42.8 °FAverage April
62.4 °FHighest 5 April, 2026
80.6 °F
Climate (2021–Present)
Palo Alto Airport (4.3 miles)
Average Low 2021–2026
51 °FAverage 2021–2026
60.6 °FAverage High 2021–2026
67.4 °F