SAN DIEGO — The exiting Low Pressure that brought cool temperatures will be replaced by High Pressure. This will warm condition starting Sunday into Monday. This return to warmth will coincide with the Autumnal Equinox, the astronomical start to Fall, taking place on Sunday morning at 5:43 am.
Sunday TEMPERATURES:
The cool overnight lows will be replaced with slightly warmer day time highs. By Sunday the previously mentioned low will exit east and allow for the influence of High Pressure to takeover. Most peak temperatures will remain in the 70s on Sunday, but 80s take over for the inland valleys and mountains, the desert returns to triple digit heat.
SEASONAL (AVERAGE) DAYTIME HIGHS:
- Coastal highs near 76 to 78 degrees
- Inland valley highs near 86 degrees
- Mountain highs near 78 degrees
- Desert highs near 100 degrees
AT THE COAST:
Widespread 70s will remain at the coast with a repeating marine layer each night and morning. The coverage will fluctuate at times for the inland valleys. Expect patchy fog, favoring the coast, that could get dense at times next week, especially on Monday, Thursday and Friday. Daytime highs will remain mild with widespread 80s for the inland valleys and mountains, and near seasonal for the desert near 100 degrees next week.
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