Newtown, CA Weather Forecast
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Newtown Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
| Sunny | Clear | Sunny | Partly Cloudy | Partly Cloudy | Mostly Cloudy | Mostly Sunny | Clear | Clear | Sunny | Mostly Clear | Mostly Clear |
| Hi: 80°FHi: 27°C | Lo: 57°FLo: 14°C | Hi: 84°FHi: 29°C | Lo: 60°FLo: 16°C | Hi: 84°FHi: 29°C | Lo: 61°FLo: 16°C | Hi: 83°FHi: 28°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 84°FHi: 29°C Lo: 59°FLo: 15°C | Hi: 89°FHi: 32°C | Hi: 90°FHi: 32°C Lo: 63°FLo: 17°C | Hi: 90°FHi: 32°C Lo: 63°FLo: 17°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 800 AM PDT Fri Sep 18 2026 

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Issued: 1213 PM PDT Thu Sep 17 2026
Key Messages
- Cooler weather, breezy onshore winds, and increased humidity today
- Isolated shower and thunderstorm chances today, mainly across Coast Range, Shasta County, and southern Cascades through 8 PM
- Warming and drying conditions Friday and over the weekend with near normal temperatures and general offshore flow
Discussion
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Today: Current GOES-West visible satellite imagery shows the marine stratus intrusion lingering across much of the Sacramento Valley in the form of low clouds, with some ...
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