Well, we thought that excruciating hot-temperatures-for-only-one-week-out-of-the-year thing was behind us. Au contraire. According to numerous reports (slow news day, folks), the thermometer will reach the upper 80s. Oy. In fact, the National Weather Service issued an excessive heat watch for S.F. through Wednesday evening. Which is to say, the young, elderly, and gingers need to stay cool and hydrated. [Appeal]