Runners in the 2026 Bank of America Chicago Marathon could wind up racing in the rain thanks to remnants of the newly formed Tropical Storm Isaias in the Gulf.

Some Gulf oil wells paused production, and at least four Florida school districts canceled classes for later in the week.

Over the weekend, Baja California could receive anywhere from 1 to 3 inches of rain from the storm while San Diego could see some showers late Saturday through Tuesday.

The hurricane center’s initial projections said the center of Isaias could come onshore somewhere between eastern Louisiana and the western Florida Panhandle.

It's a possibility, NBC 5 Storm Team Meteorologist Kevin Jeanes said, but it may not be as bad as it sounds. Early forecasts show Sunday's temperature looks to be warmer than average, Jeanes said, with a temperature of 63 degrees when the race begins around 7 a.m.

While we sit under high pressure, a new tropical storm is starting to develop in the southern Gulf of Mexico. In the meantime, we’ll be sitting in sunshine Wednesday, Thursday and Friday. Highs will be in the low 70s Wednesday,

Tropical Storm Isaias has formed over the warm gulf water south of Texas. This storm is forecast to strengthen into a hurricane later today and tonight and approach Cat 2-3 intensity later in the week as is approaches Alabama and the Florida Panhandle.