Deedolce- Yes, that's the junction. We(the group I ride with) often sit up there in the sun, have a bite to eat, and... if the ranger is around... have him/her call the weather radio at the summit to find out the temp and the wind conditions. At least then we know what we are getting in to.......especially this time of the year.

If you want to know current conditions of most areas just go to the NOAA weather site. For example: Type Mt Diablo on the search window and you will get all kinds of stuff. Go to the MesoWest thread and you will find temps, humidity, wind, peak wind, temps and precipitation for the last 24 hours, etc. It's useful if you are planning to come down to do the mountain. It kind of has its own weather system. Mozie around the NOAA site in the same area (get out of MesoWest) and you can find forecasts for the Diablo range as well. Also useful for longer term (as in 5 days)

I use this site a lot because it doesn't have any ads. Just lots of info and interesting discussions.