Washington's July 4 celebration attendees this year will have to contend with stepped-up security, possible thunderstorms and temperatures that could top 100F.

President Trump said extreme heat in the nation's capital on July 4 won't stop him from giving his big speech ahead of the fireworks celebration.

With temperatures forecast to reach up to 42 degrees, the US president told an audience he planned to make a long speech, “just to show that I can do anything”.

By Belinda Robinson in Washington |

By Belinda Robinson in Washington DC |