Boston Marathon

Warm weather forecast for Boston Marathon

Temperatures are expected to approach record highs in Boston today, where runners are set for the 108th Boston Marathon. Highs should be in the mid-80s -- some 30 degrees warmer than the average high for April. The hottest marathon weather was a sizzling 96 in 1976. The field of 20-thousand-400 official entrants is the second largest in the event's history. The largest was in 1996 when more than 38-thousand runners marked the Marathon's 100th anniversary. This year's 26-point-two mile race is a watershed for the women, who for the first time in Boston Marathon history, will leave the Hopkinton starting line about a half-hour before the men's field and the horde of recreational runners.