Weather WorldSan Luis Reservoir, CA Weather Forecast
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San Luis Reservoir Weather Forecast
| TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | TUESDAY NIGHT | WEDNESDAY | THURSDAY |
 |  |  |  |  | | | | | |  | |
| Chance of Rain | Chance of Rain | Partly Cloudy | Sunny | Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Partly Cloudy | Partly Cloudy | Partly Cloudy |
| Lo: 75°FLo: 24°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 90°FHi: 32°C | Lo: 64°FLo: 18°C | Hi: 88°FHi: 31°C | Hi: 84°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 84°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 84°FHi: 29°C Lo: 61°FLo: 16°C | Hi: 83°FHi: 28°C Lo: 63°FLo: 17°C | Hi: 83°FHi: 28°C Lo: 63°FLo: 17°C | Hi: 83°FHi: 28°C Lo: 63°FLo: 17°C |
| POP: 20% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 310 PM PDT Thu Aug 27 2026 
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Issued: 1205 PM PDT Thu Aug 27 2026
Key Messages
1 Temperatures drop slightly Thursday and Friday before a significant decrease over the weekend.
2. Moisture tracking over the region in the late week period will bring a 10 to 30 percent chance of thunderstorms over the Sierra Nevada on Friday. 5 to 25 percent chance of precipitation Friday in the Valley.
3. Precipitation chances return middle of next week.
Discussion
... Here comes the clouds! A nice cloudy morning greeted most of the San Joaquin Valley as the first remnants of the for...