Weather WorldAltha Lake, CA Weather Forecast
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Altha Lake Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | TUESDAY | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY |
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| Smoke | Smoke | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Clear | Mostly Clear | Sunny | Mostly Clear | Sunny |
| Hi: 70°FHi: 21°C | Lo: 50°FLo: 10°C | Hi: 71°FHi: 22°C | Lo: 50°FLo: 10°C | Hi: 70°FHi: 21°C | Hi: 66°FHi: 19°C Lo: 48°FLo: 9°C | Hi: 66°FHi: 19°C Lo: 48°FLo: 9°C | Hi: 66°FHi: 19°C Lo: 48°FLo: 9°C | Hi: 68°FHi: 20°C | Lo: 48°FLo: 9°C | Hi: 67°FHi: 19°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 146 AM PDT Fri Oct 02 2026 
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Issued: 1015 PM PDT Thu Oct 1 2026
Key Messages
1. Above normal temperatures are expected in our area today, and temperatures will continue to warm into the weekend.
2. A Moderate Heat Risk through the Central Valley is very likely (60-80% chance) today with the chances increasing even further this weekend. Major Heat Risk is possible this weekend in portions of the Valley with a 50-60% chance.
3. A Heat Advisory for the weekend has been issued for the Valley and Foothills.
Discussion
... A ridge parked over the southwest will continu...