Will the January 2018 government shut down affect the NSF postdoc awards? I very recently learned that I will be awarded an NSF postdoc!
And then the US government shut-down.

Should I expect the NSF postdoc to work out once the government starts running again?  

Note: The email I received from the NSF is not an official award notice. From the NSF website is says that during this shut-down period “no new grants or cooperative agreements will be awarded”. It does not say anything about whether grants that have been scheduled will be awarded once operations resume. Perhaps I am overthinking it, but I am worried that the NSF postdoc might fall through and it will be to late for me to make alternate arrangements.
The NSF recently changed its accounting practices, so that money for awards are committed all at once, rather than year-by-year. So, that means that the funding for your award should already have been “available” when you got the notification. Unfortunately, a shutdown means that no further processing will likely take place until it ends, so there may be some delays in the start of your award. But I can’t imagine a scenario where the NSF cancels awards it was planning to make because of the shutdown.