National Weather Service United States Department of Commerce

Warmup expected in the East, cooler weather forecast across parts of West

Much of the eastern U.S. will see a significant warming trend beginning on Friday, with high temperatures as much as 10-15 degrees warmer than on Thursday. The warming trend will continue into the weekend. Meanwhile, temperatures will be on the decrease across much of the northern Plains and Intermountain West over the next several days.
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Hazardous Weather Conditions

Current Conditions

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Castro Valley CA

7 Day Forecast

This
Afternoon

Chance Rain Chance for Measurable Precipitation 30%

Chance
Rain

High: 60 °F

Tonight

Rain Chance for Measurable Precipitation 80%

Rain

Low: 50 °F

Saturday

Showers Chance for Measurable Precipitation 90%

Showers

High: 58 °F

Saturday
Night

Showers Chance for Measurable Precipitation 80%

Showers

Low: 50 °F

Sunday

Showers Chance for Measurable Precipitation 80%

Showers

High: 58 °F

Sunday
Night

Chance Showers Chance for Measurable Precipitation 40%

Chance
Showers

Low: 51 °F

Monday

Chance Showers Chance for Measurable Precipitation 30%

Chance
Showers

High: 62 °F

Monday
Night

Chance Rain

Chance
Rain

Low: 51 °F

Tuesday

Rain Likely

Rain
Likely

High: 58 °F

Detailed Forecast

  • This Afternoon A 30 percent chance of rain after 4pm. Partly sunny, with a high near 60. West wind around 6 mph.
  • Tonight Rain, mainly after 10pm. Low around 50. Calm wind. Chance of precipitation is 80%.
  • Saturday Showers. High near 58. South wind 5 to 8 mph. Chance of precipitation is 90%.
  • Saturday Night Showers. Low around 50. Light east southeast wind. Chance of precipitation is 80%.
  • Sunday Showers. High near 58. East wind 7 to 11 mph. Chance of precipitation is 80%.
  • Sunday Night A 40 percent chance of showers. Cloudy, with a low around 51.
  • Monday A 30 percent chance of showers before 10am. Cloudy, with a high near 62.
  • Monday Night A chance of rain. Mostly cloudy, with a low around 51.
  • Tuesday Rain likely. Mostly cloudy, with a high near 58.
  • Tuesday Night Rain likely. Mostly cloudy, with a low around 50.
  • Wednesday Showers likely. Mostly cloudy, with a high near 60.
  • Wednesday Night A chance of showers. Mostly cloudy, with a low around 50.
  • Thursday A chance of showers. Mostly cloudy, with a high near 61.