According to an update on SpaceX’s website, the culprit is weather yet again. This time, the weather surrounding the autonomous drone spaceport in the Atlantic seems pretty rocky:
The drone ship was designed to operate in all but the most extreme weather. We are experiencing just such weather in the Atlantic with waves reaching up to three stories in height crashing over the decks. Also, only three of the drone ship’s four engines are functioning, making station-keeping in the face of such wave action extremely difficult.
Fortunately, weather looks great everywhere else:
And it looks like this is it. SpaceX CEO Elon Musk tweeted that the company can't delay any longer, and that they need to get DSCOVR into space now. So we'll just have to wait for the next launch to see if SpaceX is able to land that rocket. Meanwhile, you can still watch tonight's launch on SpaceX's livestream below: