Weather WorldCup Lake, CA Weather Forecast
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Cup Lake Weather Forecast
| TODAY | TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | FRIDAY | SATURDAY |
 |  | | | | | | | | | |
| Sunny | Clear | Sunny | Clear | Sunny | Clear | Sunny | Clear | Clear | Clear | Clear |
| Hi: 63°FHi: 17°C | Lo: 43°FLo: 6°C | Hi: 72°FHi: 22°C | Lo: 47°FLo: 8°C | Hi: 69°FHi: 21°C | Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C | Hi: 66°FHi: 19°C Lo: 46°FLo: 8°C | Hi: 66°FHi: 19°C Lo: 46°FLo: 8°C | Hi: 72°FHi: 22°C Lo: 48°FLo: 9°C | Hi: 72°FHi: 22°C Lo: 48°FLo: 9°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1132 AM PDT Sun Sep 13 2026 
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Issued: 1216 PM PDT Sun Sep 13 2026
Key Messages
- Critical fire weather conditions through Monday late afternoon due to gusty winds and low daytime humidity
- Red Flag Warning in place for portions of the Sacramento Valley and adjacent foothills until 5 PM PDT Monday
- Cooler, below normal temperatures today. Warming trend Monday onward with Valley highs in the mid 80s to low 90s.
Discussion
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Today-Monday: Clear and sunny skies are being observed today across interior Northern California. Temperatures are trending 10 to 15 degrees below...