Strong Santa Ana winds are expected to increase in San Diego and spread southward today, with forecasters warning of strong gusts and dry conditions that heighten fire risks through Friday morning. According to National Weather San Diego, we’re bracing for a noticeable drop in humidity and much cooler temperatures inland, with today’s highs ranging from 62 to 70 degrees in the inland valleys and lower across the San Bernardino County mountains and deserts. Coastal areas expect highs from 71 to 75 degrees, a slight bump from Tuesday.