SAN DIEGO (KGTV) — Expect another cool night across San Diego County, with overnight lows west of the mountains dropping into the low 60s and upper 50s.
Tuesday was slightly warmer, but the real warm-up starts Wednesday as we enter a mini heatwave in the middle of Fall.
A dome of warm air off the west coast will continue shifting eastward, parking over southern California and bringing excessive heat to San Diego County. This system, paired with a trough over the Great Plains, will increase the pressure gradient, amplifying north and east winds starting tomorrow. Strong winds will peak Wednesday and Thursday, gusting 30-40mph along the western slopes and inland communities.
Regarding the heat-up, you can find relief at the immediate beaches, but most coastal communities will gradually climb to the low 80s by Friday. We'll top out in the mid-90s for the inland spots, and daytime highs won't fluctuate too much towards the weekend.
High pressure will gradually weaken early next week, with temperatures diving close to seasonal.
Wednesday's Highs:
Coast: 75-85
Inland: 51-61
Mountains: 76-83
Deserts: 92-94
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