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Father's Day forecast: See where thunderstorms could impact outdoor plans. Chevron right

Castro Valley, CA

53°F
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Castro Valley, CA Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities

June 13 - July 27

Fri 6/13

70° /52°
0%
Clouds giving way to sun; breezy this afternoon

RealFeel®73°

RealFeel Shade™66°

Max UV Index11 (Extreme)

WindWSW 13 mph

Sat 6/14

69° /51°
1%
Areas of low clouds, then sun and pleasantly cool

RealFeel®74°

RealFeel Shade™66°

Max UV Index10 (Very High)

WindWSW 10 mph

Sun 6/15

73° /53°
1%
Partly sunny and beautiful

RealFeel®78°

RealFeel Shade™69°

Max UV Index11 (Extreme)

WindWSW 10 mph

Mon 6/16

70° /53°
2%
Partly to mostly sunny and cool

RealFeel®74°

RealFeel Shade™66°

Max UV Index11 (Extreme)

WindWSW 12 mph

Tue 6/17

77° /56°
2%
Pleasant with plenty of sunshine

RealFeel®83°

RealFeel Shade™74°

Max UV Index11 (Extreme)

WindWSW 8 mph

Wed 6/18

77° /55°
2%
Pleasant with abundant sunshine

RealFeel®82°

RealFeel Shade™73°

Max UV Index11 (Extreme)

WindWSW 9 mph

Thu 6/19

72° /53°
3%
Plenty of sunshine

RealFeel®77°

RealFeel Shade™68°

Max UV Index11 (Extreme)

WindWSW 10 mph

Fri 6/20

71° /54°
0%
Sunny

RealFeel®76°

RealFeel Shade™67°

Max UV Index11 (Extreme)

WindSW 9 mph

Sat 6/21

75° /55°
0%
Plenty of sunshine

RealFeel®79°

RealFeel Shade™72°

Max UV Index11 (Extreme)

WindWSW 7 mph

Sun 6/22

70° /53°
0%
Plenty of sunshine

RealFeel®76°

RealFeel Shade™67°

Max UV Index11 (Extreme)

WindWNW 7 mph

Mon 6/23

72° /54°
0%
Plenty of sunshine

RealFeel®78°

RealFeel Shade™69°

Max UV Index11 (Extreme)

WindWNW 5 mph

Tue 6/24

75° /56°
0%
Mostly sunny

RealFeel®79°

RealFeel Shade™72°

Max UV Index11 (Extreme)

WindW 7 mph

Wed 6/25

77° /55°
0%
Mostly sunny

RealFeel®81°

RealFeel Shade™74°

Max UV Index11 (Extreme)

WindW 6 mph

Thu 6/26

75° /56°
20%
Plenty of sun

RealFeel®82°

RealFeel Shade™73°

Max UV Index11 (Extreme)

WindWSW 5 mph

Fri 6/27

73° /55°
20%
Plenty of sunshine

RealFeel®79°

RealFeel Shade™71°

Max UV Index11 (Extreme)

WindWSW 6 mph

Sat 6/28

73° /54°
5%
Plenty of sunshine

RealFeel®81°

RealFeel Shade™72°

Max UV Index11 (Extreme)

WindW 4 mph

Sun 6/29

78° /56°
5%
Plenty of sunshine

RealFeel®84°

RealFeel Shade™76°

Max UV Index11 (Extreme)

WindSW 4 mph

Mon 6/30

78° /55°
20%
Partly sunny

RealFeel®83°

RealFeel Shade™75°

Max UV Index11 (Extreme)

WindSSW 5 mph

Tue 7/1

71° /54°
25%
Clouds and sun

RealFeel®73°

RealFeel Shade™69°

Max UV Index4 (Moderate)

WindSW 5 mph

Wed 7/2

71° /54°
20%
Intervals of clouds and sun

RealFeel®77°

RealFeel Shade™70°

Max UV Index7 (High)

WindSW 4 mph

Thu 7/3

73° /55°
20%
Partial sunshine

RealFeel®81°

RealFeel Shade™71°

Max UV Index11 (Extreme)

WindWSW 4 mph

Fri 7/4

72° /56°
25%
Sun and some clouds

RealFeel®80°

RealFeel Shade™70°

Max UV Index10 (Very High)

WindWSW 5 mph

Sat 7/5

71° /56°
25%
Cloudy most of the time

RealFeel®72°

RealFeel Shade™70°

Max UV Index4 (Moderate)

WindWSW 5 mph

Sun 7/6

71° /55°
25%
Intervals of clouds and sunshine

RealFeel®74°

RealFeel Shade™69°

Max UV Index4 (Moderate)

WindWSW 5 mph

Mon 7/7

72° /55°
25%
Mostly cloudy

RealFeel®74°

RealFeel Shade™73°

Max UV Index5 (Moderate)

WindSW 4 mph

Tue 7/8

75° /56°
25%
Mostly cloudy

RealFeel®76°

RealFeel Shade™73°

Max UV Index4 (Moderate)

WindSW 5 mph

Wed 7/9

73° /58°
25%
Times of clouds and sun

RealFeel®76°

RealFeel Shade™71°

Max UV Index6 (High)

WindSW 6 mph

Thu 7/10

72° /57°
25%
Clouds and sunshine

RealFeel®73°

RealFeel Shade™70°

Max UV Index4 (Moderate)

WindSW 5 mph

Fri 7/11

73° /57°
25%
Clouds and sun

RealFeel®75°

RealFeel Shade™71°

Max UV Index4 (Moderate)

WindSW 5 mph

Sat 7/12

71° /56°
25%
Mostly cloudy

RealFeel®72°

RealFeel Shade™70°

Max UV Index4 (Moderate)

WindSW 5 mph

Sun 7/13

71° /55°
25%
Mostly cloudy

RealFeel®72°

RealFeel Shade™69°

Max UV Index3 (Moderate)

WindSW 5 mph

Mon 7/14

72° /55°
25%
Intervals of clouds and sunshine

RealFeel®76°

RealFeel Shade™70°

Max UV Index5 (Moderate)

WindSW 4 mph

Tue 7/15

72° /56°
25%
Intervals of clouds and sunshine

RealFeel®76°

RealFeel Shade™70°

Max UV Index6 (High)

WindSW 5 mph

Wed 7/16

71° /55°
25%
Cloudy most of the time

RealFeel®73°

RealFeel Shade™70°

Max UV Index4 (Moderate)

WindWSW 5 mph

Thu 7/17

71° /55°
25%
Mostly cloudy

RealFeel®73°

RealFeel Shade™69°

Max UV Index4 (Moderate)

WindWSW 5 mph

Fri 7/18

72° /56°
20%
Partly sunny

RealFeel®77°

RealFeel Shade™70°

Max UV Index7 (High)

WindSW 4 mph

Sat 7/19

77° /57°
20%
Plenty of sunshine

RealFeel®84°

RealFeel Shade™75°

Max UV Index11 (Extreme)

WindSW 4 mph

Sun 7/20

77° /55°
20%
Mostly sunny

RealFeel®83°

RealFeel Shade™75°

Max UV Index11 (Extreme)

WindSW 5 mph

Mon 7/21

72° /56°
25%
Clouds and sun

RealFeel®75°

RealFeel Shade™70°

Max UV Index7 (High)

WindSW 4 mph

Tue 7/22

76° /58°
25%
A blend of sun and clouds

RealFeel®78°

RealFeel Shade™74°

Max UV Index5 (Moderate)

WindSW 4 mph

Wed 7/23

77° /59°
25%
Turning cloudy

RealFeel®80°

RealFeel Shade™77°

Max UV Index7 (High)

WindSW 4 mph

Thu 7/24

76° /59°
20%
Partial sunshine

RealFeel®83°

RealFeel Shade™75°

Max UV Index9 (Very High)

WindSW 4 mph

Fri 7/25

77° /57°
0%
Plenty of sun

RealFeel®80°

RealFeel Shade™74°

Max UV Index10 (Very High)

WindWSW 8 mph

Sat 7/26

74° /58°
0%
Sunshine

RealFeel®77°

RealFeel Shade™71°

Max UV Index10 (Very High)

WindWSW 8 mph

Sun 7/27

74° /59°
0%
Plenty of sunshine

RealFeel®77°

RealFeel Shade™70°

Max UV Index10 (Very High)

WindW 9 mph

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World North America United States California Castro Valley

Weather Near Castro Valley:

  • Oakland, CA
  • San Francisco, CA
  • San Jose, CA
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