It’s 7 a.m. and a brisk 54° with a forecast of 66° and clear skies for this afternoon. Details for the next 10 days are here.

With lawmakers unable to pass a compromise budget, the government shutdown is in full effect today. Unless you work for the federal government, your life will be relatively unimpacted. Critical services like air traffic controllers, social security and the military will still function, but if you were planning a getaway this weekend, remember that all national parks will be closed until the budget is resolved. SFGate has a thorough rundown of what agencies will be affected by the shutdown.

Details are scarce regarding Twitter’s upcoming Initial Public Offering, or IPO. The company has filed its documentation confidentially, taking advantage of new rules in the Jumpstart Our Business Startups (JOBS) Act intended to help small startups. Still it appears trading will commence shortly before Thanksgiving. Some investors are still spooked over the legacy of Facebook’s rocky transition to a public company, and worries that a large part of Twitter’s traffic is made up of spam.

Looking for something different to do this week? Oddball films is having a night of “Cults, Sects, and Mind- Control” this Thursday at 8:00 p.m. The program will “investigate many of the most famous, most destructive cults of the 20th century,” including The Moonies, the Manson Family, and Patty Hearst. The theater is at 275 Capp Street and tickets are $10. More information can be found here.