Local Forecast

Castro Valley, CA Weather Forecast & Alerts

Current conditions, 5-day forecast, active weather alerts for Castro Valley, CA

No Active Alerts

Hour-by-Hour  Current Observation

Sunday 7:00 PM PDTSunday 7:00 PM

°F °C
Regional Observations →
60°F

Partly Cloudy

  • 71° / 57° High / Low
  • 60° Feels Like
  • 0% Chance of Rain

Wind

12 mph

WNW

UV Index

0

None

Humidity

82%

Dew 55°F

Sun

6:56 AM · 7:05 PM

Rise · Set

Source: OAKLAND (KOAK). Slider scrubs the next 12 hours.

5-Day Outlook

Through Thursday

Local Radar →

Tonight

57°

Forecast Missing

Detailed forecast

Tonight

Mostly cloudy. Low around 57, with temperatures rising to around 59 overnight. West southwest wind around 7 mph.

Monday

73° 57°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Monday

Mostly sunny. High near 72, with temperatures falling to around 69 in the afternoon. West southwest wind 6 to 9 mph.

Night

Mostly cloudy, with a low around 57. West southwest wind 5 to 8 mph.

Tuesday

77° 57°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Tuesday

Mostly sunny, with a high near 76. Southwest wind 3 to 8 mph.

Night

Mostly clear, with a low around 56. Southwest wind 1 to 8 mph.

Wednesday

86° 60°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Wednesday

Mostly sunny, with a high near 85.

Night

Partly cloudy, with a low around 60.

Thursday

84° 60°

Forecast Missing

Overnight: Forecast Missing

Detailed forecast

Thursday

Mostly sunny, with a high near 84.

Night

Partly cloudy, with a low around 60.

Castro Valley, CA Weather Analysis Tools