Good morning, Medford. Here's five things to know today:

Markey Takes Strong Stance on Oil: Rep. Ed Markey challenged Barack Obama to tap the nation's petroleum reserve at a Medford press conference yesterday.

Fire on Greenhalge Street: A basement fire on Greenhalge Street Monday caused about $75,000 in damage, fire officials said. No one was hurt.

Track and Baseball Today: Varsity track has a home meet with Boston Latin today at 3:45 p.m. And varsity baseball plays Boston Latin at 4 p.m. at Playstead Park.

Mid-70s, But Maybe Rain: Temperatures will peak in the mid-70s today, according to the National Weather Service. There's a 50 percent chance of rain.

Moms Support Group: Head to Medford Family Network Headquarters at Medford High at 12 p.m. for this weekly support group.