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Mountain House Community Services DistrictMountain House, CA Weather Forecast
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| TODAY | TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT |
 |  |  | | |  | | | | | | |
| Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Mostly Sunny | Clear | Sunny | Clear | Clear | Clear | Mostly Clear | Mostly Clear |
| Hi: 89°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 83°FHi: 28°C | Lo: 60°FLo: 16°C | Hi: 86°FHi: 30°C | Lo: 60°FLo: 16°C | Hi: 88°FHi: 31°C | Hi: 90°FHi: 32°C Lo: 62°FLo: 17°C | Hi: 90°FHi: 32°C Lo: 62°FLo: 17°C | Lo: 68°FLo: 20°C | Hi: 95°FHi: 35°C Lo: 68°FLo: 20°C | Hi: 95°FHi: 35°C Lo: 68°FLo: 20°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 201 AM PDT Sat Sep 19 2026 
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Instant definitions for any meteorological term.
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Issued: 1234 PM PDT Fri Sep 18 2026
Key Messages
- Seasonable temperatures and dry conditions persist over the weekend with generally offshore winds.
- Isolated mountain thunderstorm chances (up to 10%) along the Sierra from Highway 50 southward on Monday.
- Dry weather remainder of next week with gradual warming trend through the middle of the week.
Discussion
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Today-Weekend: Upper level troughing is beginning to eject eastward as of early this afternoon and is expected to exit the region by Saturday. In its wake, a brief period of weak...