AJC PEACHTREE ROAD RACE FORECAST

7 a.m.: Muggy with clouds. Temperature: 72 degrees

» For a detailed forecast, visit The Atlanta Journal-Constitution weather page.

Start hydrating now, runners.

With the forecast calling for high temperatures and humidity, organizers of The Atlanta Journal-Constitution Peachtree Road Race on Monday issued a red alert for Tuesday’s race. That means conditions could be dangerous and runners may need to slow down or consider stopping.

“We want to get the word out that people should start hydrating and may need to adjust their race day plan in terms of pace and whether they should participate, should they have medical conditions made worse in this weather,” the Atlanta Track Club said in a statement.

By the start of the race, Channel 2 meteorologist Brian Monahan said temperatures will be in the low 70s and conditions will be muggy and cloudy. Rain is not expected during the race.

“Please understand the risks associated with strenuous exercise in these conditions and alter your race plan accordingly,” the Atlanta Track Club said. “If you have a condition that is worsened by high heat and humidity, please consult a medical professional before participating.”

Racers begin at the starting line from Lenox Square during the 47th running of the AJC Peachtree Road Race Monday July 4, 2016, in Atlanta, Ga.