NASA will be launching a tracking and data relay satellite from Cape Canaveral hopefully around 12:03 UTC / 08:03 ET.
NASA – TDRS-M, built by Boeing, will provide NASA’s Space Network the ability to support critical space communication into the mid-2020s, ensuring scientists, engineers and control room staff can readily access data for missions like the Hubble Space Telescope and the International Space Station.
Coverage starts at 11:30 UTC / 07:30 ET on NASA TV, there will be a live link here at 11:30 UTC if all goes as planned.
Currently the weather at the space center looks to be pleasant with air temperature about 25 C or so (~78 F). No rain in area. . . yet.