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Castella, CA Weather Forecast

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Castella, CA Weather Forecast

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Castella CA weather - Clear - 66°F
Clear
66°F
Updated 1:03 am
Feels Like 53°F
Humidity 43%
Wind N 5 mph
Barometer  29.94 in
Dew Point 43°F
Castella CA weather - Clear - 19°C
Clear
19°C
Updated 1:03 am
Feels Like 12°C
Humidity 43%
Wind N 8 km/h
Barometer  101.3 kPa
Dew Point 6°C
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Castella Weather Forecast

TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SUNDAY MONDAY
Castella, CA Weather - Tonight Clear Castella, CA Weather - Tuesday Mostly Sunny Castella, CA Weather - Tuesday Night Clear Castella, CA Weather - Wednesday Mostly Sunny Castella, CA Weather - Wednesday Night Mostly Clear Castella, CA Weather - Thursday Partly Cloudy Castella, CA Weather - Thursday Night Mostly Clear Castella, CA Weather - Friday Clear Castella, CA Weather - Friday Night Clear Castella, CA Weather - Saturday Clear Castella, CA Weather - Sunday Clear Castella, CA Weather - Monday Clear
Clear Mostly Sunny Clear Mostly Sunny Mostly Clear Partly Cloudy Mostly Clear Clear Clear Clear Clear Clear
Lo: 57°FLo: 14°C Hi: 88°FHi: 31°C
 Lo: 59°FLo: 15°C Hi: 95°FHi: 35°C
 Lo: 63°FLo: 17°C Hi: 93°FHi: 34°C
 Lo: 59°FLo: 15°C Hi: 87°FHi: 31°C
Lo: 57°FLo: 14°C		 Hi: 87°FHi: 31°C
Lo: 57°FLo: 14°C		 Hi: 77°FHi: 25°C
Lo: 54°FLo: 12°C		 Hi: 77°FHi: 25°C
Lo: 54°FLo: 12°C		 Hi: 77°FHi: 25°C
Lo: 54°FLo: 12°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 PM PDT Mon Sep 07 2026 Castella, CA Weather - WeatherWorld.com

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Issued: 1219 PM PDT Mon Sep 7 2026

Key Messages

  • Drying and warming trend through Thursday, with areas of Moderate to Major HeatRisk Wednesday and Thursday.
  • Heat Advisory is in effect 10 am Wednesday - 10 pm Thursday for the Delta, Valley, and foothills.
  • Cooling temperatures and breezy onshore winds Friday into the weekend.

Discussion

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Today-Thursday: While troughing aloft over the PacNW remains the primary driving feature of the weather pattern today, ridging aloft is beginning to build westward from the Desert Southwest. As the b...