The cool air returned to San Francisco last night. When I took this picture this morning about 8:00 a.m., fog masked the skyline and Twin Peaks, but a ray of sun illuminated the inner Mission District. Taken from Bernal Heights.

Meanwhile, more than 100 fires were caused by lightning last night in counties north of the city, and inland areas still expect 100-degree temperatures, though cooling is expected to help firefighters in Napa and Solano counties.

It’s pretty nice out there, but before you start wailing global warming know that we are still 15-20 degrees under the all time high for this day set in 1988, 84 degrees fahrenheit. The All time low was 38 degrees fahrenheit, set in 1967, the Summer of Love. In case you are making plans, it’s supposed to stay this way through the weekend, enjoy!

So far today:
73 °F / 23 °C

History on this day:
84 °F / 28 °C (1988)
38 °F / 3 °C (1967)

h/t Weather Underground.