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As of 06:54 PDT

Weather in Castro Valley, CA

58°Current weather

Castro Valley, Sunday, 9 August, 06:54

Clear. Feels like 58°. High 87°, low 58°.

Pressure29.85 inHg
Wind1 mph S
Humidity87%
Visibility6.2 mi
Dew point54°

Two-week outlook for Castro Valley, CA: week one averages a high of 82.9° and week two 87.7°, so week two runs 4.9° warmer than week one. Around 0.0 inches of precipitation are expected over the 14 days, across 0 wet days. The nearest weekend, August 9: 87°, dry.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)82.9°57.5°0.0 in / 0 d—
2nd (August 16 – August 22)87.7°59.8°0.0 in / 0 d—

Weekend weather

Sun, August 9
Clear
87°58°
no precip.
Sat, August 15
Clear
79°56°
no precip.
Sun, August 16
Overcast
80°57°
no precip.
Sat, August 22
Clear
96°64°
no precip.
Mon, 1083° / 61°0Overcast
83 °Overcast

Castro Valley, Monday, 10 August

Overcast. High 83°, low 61°.

Pressure29.85 inHg
Wind4.5 mph W
Humidity32%
Visibility6.2 mi
Dew point48°
Tue, 1187° / 58°0Clear
87 °Clear

Castro Valley, Tuesday, 11 August

Clear. High 87°, low 58°.

Pressure29.91 inHg
Wind3.4 mph W
Humidity31%
Visibility6.2 mi
Dew point47°
Wed, 1283° / 57°0Clear
83 °Clear

Castro Valley, Wednesday, 12 August

Clear. High 83°, low 57°.

Pressure29.83 inHg
Wind4.4 mph SW
Humidity37%
Visibility6.2 mi
Dew point50°
Thu, 1381° / 56°0Mostly clear
81 °Mostly clear

Castro Valley, Thursday, 13 August

Mostly clear. High 81°, low 56°.

Pressure29.83 inHg
Wind9.4 mph W
Humidity39%
Visibility—
Dew point51°
Fri, 1480° / 56°0Clear
80 °Clear

Castro Valley, Friday, 14 August

Clear. High 80°, low 56°.

Pressure29.91 inHg
Wind9.5 mph W
Humidity37%
Visibility—
Dew point49°
Sat, 1579° / 56°0Clear
79 °Clear

Castro Valley, Saturday, 15 August

Clear. High 79°, low 56°.

Pressure29.97 inHg
Wind10.3 mph NW
Humidity39%
Visibility—
Dew point50°
Sun, 1680° / 57°0Overcast
80 °Overcast

Castro Valley, Sunday, 16 August

Overcast. High 80°, low 57°.

Pressure30.09 inHg
Wind8 mph W
Humidity47%
Visibility—
Dew point51°
Mon, 1786° / 59°0Overcast
86 °Overcast

Castro Valley, Monday, 17 August

Overcast. High 86°, low 59°.

Pressure30.06 inHg
Wind8.9 mph W
Humidity33%
Visibility—
Dew point51°
Tue, 1885° / 59°0Clear
85 °Clear

Castro Valley, Tuesday, 18 August

Clear. High 85°, low 59°.

Pressure30.00 inHg
Wind8 mph W
Humidity33%
Visibility—
Dew point50°
Wed, 1987° / 60°0Clear
87 °Clear

Castro Valley, Wednesday, 19 August

Clear. High 87°, low 60°.

Pressure29.94 inHg
Wind6.1 mph W
Humidity28%
Visibility—
Dew point48°
Thu, 2088° / 59°0Overcast
88 °Overcast

Castro Valley, Thursday, 20 August

Overcast. High 88°, low 59°.

Pressure29.88 inHg
Wind6.7 mph W
Humidity32%
Visibility—
Dew point51°
Fri, 2193° / 60°0Clear
93 °Clear

Castro Valley, Friday, 21 August

Clear. High 93°, low 60°.

Pressure29.83 inHg
Wind7.2 mph W
Humidity27%
Visibility—
Dew point51°
Sat, 2296° / 64°0Clear
96 °Clear

Castro Valley, Saturday, 22 August

Clear. High 96°, low 64°.

Pressure29.85 inHg
Wind7.4 mph W
Humidity24%
Visibility—
Dew point50°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Castro Valley, CA, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.