10-Day Weather Forecast for Castro Valley (CA)

Six-hourly outlook through Saturday 1 August. Updated every three hours via MET Norway.

Day
Night
23:00
Morning
05:00
Afternoon
11:00
Evening
17:00
Wednesday
22 Jul
Mostly clear
20°C (68°F)
0 mm (0 in)
Hourly ›
Thursday
23 Jul
Partly cloudy
15°C (59°F)
0 mm (0 in)
Cloudy
14°C (57°F)
0.1 mm (0 in)
Clear skies
17°C (63°F)
0 mm (0 in)
Partly cloudy
18°C (64°F)
0 mm (0 in)
Hourly ›
Friday
24 Jul
Fog
14°C (57°F)
0.1 mm (0 in)
Cloudy
13°C (55°F)
0.1 mm (0 in)
Clear skies
16°C (61°F)
0 mm (0 in)
Partly cloudy
18°C (64°F)
0 mm (0 in)
Hourly ›
Saturday
25 Jul
Cloudy
14°C (57°F)
0 mm (0 in)
Partly cloudy
13°C (55°F)
0.1 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Hourly ›
Sunday
26 Jul
Clear skies
15°C (59°F)
0 mm (0 in)
Cloudy
13°C (55°F)
0.1 mm (0 in)
Cloudy
16°C (61°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Hourly ›
Monday
27 Jul
Partly cloudy
14°C (57°F)
0 mm (0 in)
Cloudy
13°C (55°F)
0 mm (0 in)
Partly cloudy
17°C (63°F)
0 mm (0 in)
Clear skies
18°C (64°F)
0 mm (0 in)
Hourly ›
Tuesday
28 Jul
Mostly clear
14°C (57°F)
0 mm (0 in)
Cloudy
13°C (55°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Hourly ›
Wednesday
29 Jul
Mostly clear
15°C (59°F)
0 mm (0 in)
Partly cloudy
13°C (55°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
21°C (70°F)
0 mm (0 in)
Hourly ›
Thursday
30 Jul
Clear skies
15°C (59°F)
0 mm (0 in)
Cloudy
13°C (55°F)
0 mm (0 in)
Mostly sunny
18°C (64°F)
0 mm (0 in)
Clear skies
19°C (66°F)
0 mm (0 in)
Hourly ›
Friday
31 Jul
Clear skies
14°C (57°F)
0 mm (0 in)
Clear skies
12°C (54°F)
0 mm (0 in)
Clear skies
20°C (68°F)
0 mm (0 in)
Clear skies
22°C (72°F)
0 mm (0 in)
Hourly ›
Data from MET Norway · Updated every three hours.

What's the weather in Castro Valley this week?

Today's weather - Wednesday 22 Jul

This evening, the weather in Castro Valley will be mostly clear, with temperatures around 20°C (68°F), dropping to 15°C (59°F) overnight.

Tomorrow's weather - Thursday 23 Jul

Tomorrow's weather in Castro Valley will be clear skies with some rain. High temperatures will reach a pleasant 18°C (64°F), with lows dropping to around 14°C (57°F).

10-Day Weather Forecast

The 10-day forecast shows that temperatures will vary between 18°C (64°F) and 21°C (70°F). During this period, expect daytime highs around 19°C (66°F) and nighttime lows around 14°C (57°F). These values are much cooler than usual for July. The following 10 days will bring plenty of sunshine. Rainfall is expected to be much more than usual (compared to typical July conditions). The forecast shows mostly dry conditions.

Weather Forecast FAQ for Castro Valley

When will be the warmest day next week?

The warmest day is expected to be Wednesday with a high of 21°C (70°F).

When will be the coldest day?

The coldest day is forecasted for Friday with a low of 13°C (55°F).

Will it rain next week in Castro Valley?

No significant rainfall is currently expected during the next 10 days.

How much rainfall is expected next week?

A total of 1 mm (0.04 in) of rain is forecasted for the 10-day period.

What will be the temperature range next week?

Temperatures will range from 13°C (55°F) to 21°C (70°F).

More about Castro Valley

Explore the full Castro Valley climate overview with monthly averages, or check rainfall data and temperature by month.

Castro Valley weather by month

Browse monthly averages for Castro Valley: climate by month with temperature, rainfall and sunshine.

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