| National Weather Service Forecast for:
Rosemont CA Issued by: National Weather Service Sacramento, CA |
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| Updated: 1:21 am PST Dec 17, 2025 | ||||||||||||||||||
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| Overnight |
A chance of showers before 4am, then a chance of showers and thunderstorms between 4am and 5am, then showers likely and possibly a thunderstorm after 5am. Patchy fog. Otherwise, cloudy, with a steady temperature around 49. South southeast wind around 8 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
| Wednesday |
Showers likely and possibly a thunderstorm before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before noon. Otherwise, cloudy, then gradually becoming mostly sunny, with a high near 60. South southeast wind 5 to 9 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. |
| Wednesday Night |
A slight chance of showers before 10pm, then a slight chance of showers after 3am. Patchy fog. Otherwise, increasing clouds, with a low around 45. Calm wind. Chance of precipitation is 20%. |
| Thursday |
Mostly cloudy, with a high near 57. Light south wind. |
| Thursday Night |
A 30 percent chance of showers, mainly after 4am. Mostly cloudy, with a low around 50. Southeast wind 3 to 5 mph. |
| Friday |
Showers likely, mainly after 10am. Cloudy, with a high near 56. Chance of precipitation is 70%. |
| Friday Night |
Showers. Low around 55. Chance of precipitation is 90%. |
| Saturday |
Showers. Cloudy, with a high near 56. |
| Saturday Night |
Showers. Cloudy, with a low around 55. |
| Sunday |
Showers. Cloudy, with a high near 58. |
| Sunday Night |
Showers. Cloudy, with a low around 56. |
| Monday |
Showers likely. Cloudy, with a high near 56. |
| Monday Night |
Showers likely. Cloudy, with a low around 52. |
| Tuesday |
Showers likely. Cloudy, with a high near 54. |
Forecast from NOAA-NWS for Rosemont CA.