FORECAST LOOKS GOOD FOR SUNDAY MORNING RACE

Sunday should be a great day to run a 10K, but those not participating might want to stay away, at least if crowds and parties and road closures don’t sound OK.

Forecasters say the isolated showers early Saturday should be long gone by Sunday. Temperatures should be in the mid-50s for the 8 a.m. start of the Statesman Capitol 10,000, which will probably be run under dry skies. (Full disclosure: the Austin American-Statesman is a primary sponsor of the race, which, according to the Statesman, is the largest 10K in Texas and features runners in a variety of fanciful costumes, such as pink pixie tutus and Elvis Presley jumpsuits and the occasional fat Batman or giant papier-mâché chicken head.)

Organizers of Saturday’s March for Science appear to have gotten a reprieve as well. That event, one of numerous companion marches to the main one Saturday in Washington, is scheduled to start at 9 a.m. at the state Capitol with a variety of educational displays. The last of the thunderstorms that could hit Saturday should have passed by then, National Weather Service forecaster Steve Smart said.

Cooler than normal temperatures are expected to rise only into the lower 70s in the afternoon as organizers hold the 11 a.m. rally and a march at noon down 11th Street to Huston-Tillotson University’s Earth Day celebration.

“If there’s any precipitation, it should be done” before the rally begins, Smart said.

Just how many people will march remains a question. As of Friday afternoon, roughly 5,200 indicated their attendance on the Facebook organizing page, with an additional 10,000 interested.

RALPH BARRERA / AMERICAN-STATESMAN Ann Wu walks her four dogs Friday through the neighborhood streets of Bouldin Creek and around Lady Bird Lake. Sunday morning will bring an estimated 25,000 runners, joggers and walkers to the area for the Statesman Capitol 10,000.