Flash flood watch Friday in D.C., Md., Va.

Overnight: Still some lingering T'showers and heavy showers

Lows: 70-75 | Rain: T'storms diminishing

Friday: Some Sun Early then Rain and T'storms

Highs: Near 85 | Rain: Heaviest Rain Friday Evening-Night

This Weekend: Becoming Sunny Warm & Less Humid

Highs: 85-90 | Wind: NW 5-10 Saturday

Heat and humidity and another 90 day today. The combination of a cool front moving our way and some tropical moisture moving up the East Coast tomorrow means there will be some local heavy rains in the area late Friday into Friday night. That's the reason there is a Flash Flood Watch for the entire area and there have already been some mheavy rain around Baltimore. { }It's a bit early to say where the heaviest rain will fall Friday. { }By late Friday, the front moves through and it'll be sunny with more comfortable air over us for much of the weekend.