Upper Merced Pass Lake, CA Hourly Weather Updates
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Forecast Discussion (HNX)
Issued: 1048 PM PDT Fri Aug 14 2026
Key Messages
1. Temperatures will remain at or below season averages through next week.
2. Breezy conditions over typical wind-prone areas including San Luis Reservoir, Lake Isabella and the Mojave Desert Slopes through next week.
Discussion
... A trough off the coast of California will continue to bring temperatures below normal through this weekend, though a slight warm-up is expected as that trough broadens out during that time period. Highs in the Valley are likely to be in the low to mid 90`s t...
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