USA Website with PHP & AJAX - Forecast

National Weather Service Forecast for: Castro Valley, CA


Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Updated: Fri, 14-Mar-2025 5:14am PDT

Castro Valley/Hayward
 
  Friday

Friday: Showers And Thunderstorms
Showers And T-Storms
Saturday

Saturday: Slight Chance Light Rain
Slight Chance Light Rain
Sunday

Sunday: Light Rain Likely
Light Rain Likely
Monday

Monday: Light Rain
Light Rain
Tuesday

Tuesday: Sunny
Sunny
Wednesday

Wednesday: Partly Sunny then Chance Light Rain
Partly Sunny then Chance Light Rain
Thursday

Thursday: Chance Light Rain
Chance Light Rain
  Hi 58 °F Hi 61 °F Hi 65 °F Hi 59 °F Hi 61 °F Hi 64 °F Hi 63 °F
 
Overnight

Overnight: Light Rain
Light Rain
Friday
Night
Friday Night: Chance Light Rain then Partly Cloudy
Chance Light Rain then Partly Cloudy
Saturday
Night
Saturday Night: Partly Cloudy
Partly Cloudy
Sunday
Night
Sunday Night: Rain
Rain
Monday
Night
Monday Night: Chance Light Rain then Mostly Clear
Chance Light Rain then Mostly Clear
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday
Night
Wednesday Night: Chance Light Rain
Chance Light Rain
 
Lo 42 °F Lo 44 °F Lo 46 °F Lo 50 °F Lo 43 °F Lo 42 °F Lo 47 °F  

 

Overnight
 
Rain. Cloudy. Low around 42, with temperatures rising to around 44 overnight. South southeast wind around 17 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday
 
Rain before 11am, then showers and thunderstorms between 11am and 2pm, then rain. Mostly cloudy. High near 58, with temperatures falling to around 55 in the afternoon. South southwest wind 16 to 24 mph, with gusts as high as 44 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
 
A chance of rain before 11pm. Partly cloudy. Low around 44, with temperatures rising to around 46 overnight. West southwest wind 6 to 17 mph, with gusts as high as 28 mph. New rainfall amounts less than a tenth of an inch possible.
Saturday
 
A slight chance of rain between 11am and 5pm. Partly sunny, with a high near 61. South southwest wind 5 to 8 mph. Chance of precipitation is 20%.
Saturday Night
 
Partly cloudy, with a low around 46. South southwest wind around 8 mph.
Sunday
 
Rain likely after 11am. Partly sunny, with a high near 65. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Sunday Night
 
Rain. Mostly cloudy, with a low around 50. Chance of precipitation is 90%.
Monday
 
Rain. Mostly cloudy, with a high near 59.
Monday Night
 
A chance of rain before 11pm. Mostly clear, with a low around 43.
Tuesday
 
Sunny, with a high near 61.
Tuesday Night
 
Mostly clear, with a low around 42.
Wednesday
 
A chance of rain after 5pm. Partly sunny, with a high near 64.
Wednesday Night
 
A chance of rain. Mostly cloudy, with a low around 47.
Thursday
 
A chance of rain. Partly sunny, with a high near 63.

 

Forecast from NOAA-NWS for Castro Valley, CA.

Alerts


No alerts

Please Read!!

This website is neither affiliated with nor endorsed by the National Weather Service (NWS) or any other government agency. The weather data contained herein is offered without any warranties, express or implied, and is meant for entertainment purposes only. It is not meant to supplement or replace official NWS weather forecasts and information.

Weather events can dramatically change rapidly, so plan ahead and check government sources