Temperatures are expected to remain well below freezing again overnight, which can mean danger for the District’s homeless population. The city has put out a reminder to call their Hypothermia Shelter Hotline should you spot anyone trying to sleep outside when it’s this cold.

By calling 1-800-535-7252, the Shelter Hotline can provide transportation to emergency shelters and distribute items such as blankets, gloves and jackets.

If you live outside the District, Express has compiled a list of numbers to call in Montgomery County, Prince George’s County, Arlington County, Fairfax County and Alexandria.