Jun 30 19:25
Another weather briefing is planned for 7:30 p.m. EDT (2330 UTC).

Jun 30 19:21
Weather is observed and forecast NO GO for liftoff within the remaining launch window at Cape Canaveral this evening, according to Launch Weather Officer Jessica Williams.

https://www.ulalaunch.com/missions/next-launch/atlas-v-ussf-12