Back at the end of August as hurricane Idalia was approaching Florida, United Launch Alliance rolled the Atlas V for the SILENTBARKER / NROL-107 mission back to their Vertical Integration Facility.
From the ULA mission page:
The Space Force's Space Launch Delta 45 weather squadron and Launch Weather Officer Brian Cizek forecasts an 85 percent of acceptable conditions for liftoff.
"Launch weather conditions generally look favorable for Saturday morning, with dry mid-level air limiting Atlantic shower coverage and most diurnal shower/storm activity not likely until later in the day. The primary concern is the small risk of a Cumulus Cloud Rule violation," the weather team says.
The launch time forecast for 8:51 a.m. EDT (1251 UTC) includes a scattered clouds, good visibility, southerly winds 5-10 knots and a temperature near 81 degrees F.
If the launch moves to the backup opportunity on Sunday for some reason, a similar weather pattern holds and the odds of favorable conditions remain at 85 percent.
Photo by United Launch Alliance, Dated September 7th.