The weather for Saturday and Sunday will be a bit warmer than average, with highs of about 91° both days.
It should be calm and clear, with fairly calm weather for night launching.
Humidity is expected to be around 30%, and the UV index moderate at 6 of 10.
While the UV index is expected to be lower than at any launch so far this year, sunblock is still a good idea, and staying hydrated is always important. Bring and drink plenty of water!
Rocketry Organization of California 