a high of 62 will hit at 4 cloek. it's comfortably cool with a temperature of 56. open the windows on tuesday and let the fresh air in. you start off the day in the mid to upper 40s. this is sky cast four actually forecasting what the clouds will look like throughout the day. notice, lunchtime, mostly sunny skies. temperatures flirting with 70 degrees. 3:00, we hit our high temperature of 72. and, even through the morning, temperature still very confermentble in the mid to upper 60s. mostly sunny skies, thursday, a high of 76 degrees. the record to beat at reagan national, 78. so we will be close. friday, we're going to be cooler. there's a slight chance of a shower for thursday night as a weak cold front moves through the area. for a high and chance of rain later in the day on sunday. daylight saving time begins next weekend, so we lose an hour sleep as we spring forward. >> still ahead, a tough end for the maryland men, but a fantastic finish for the wom.en (singing) i just can't wait to meet you, sweet child you're on the way, i'm filled with expectation, and yo

on sunday on the east coast and 1 cloek a.m. monday in london only here on cnn. >>> now to the u.s. state of california and the discovery there that once again has the infamous o.j. simpson murder trial capturing america. los angeles police say they have acquired a knife that was reportedly found at simpson's former estate. more from cnn's on this new mysterious development. >> i was really surprised. >> reporter: a shocking discovery in the murder case of o.j. simpson, a knife found more than a decade ago on the former football player's estate. just being retired lapd officer. >> he says a construction worker provided him with this knife, claiming it was found on the property. >> reporter: the retired officer says the construction worker supposedly worked on the property. this could have been around the time of its demolition in 1998. >> guilty of the time of murder. >> reporter: three years after simpson was acquitted of murdering nicole brown simple son and ron goldman. >> can you describe the condition, was anything on it, possibly dried blood? >> i do have any information and i