Fussa Star Festival: 福生七夕祭り
Fussa Star Festival 福生七夕祭り starts Aug. 3rd. The festival lasts four days, the last day is 6th of August, coming Sunday. Official website is here. (Japanese only)
They have beauty pageant called Princess Vega contest, rock performance by US Air Force band, dance performance, Ninja performance, marching bands from fire dept, JGSDF and kids, Samba parade etc. there a lot to see through the weekend.