PM Update: Stupendous weather stays put Refresh for latest. Behold the beautifully boring weather. High pressure has the East Coast deep in its grip, sustaining the sunny, dry conditions for a few more days. The lone complaints may arise from this evening's chill. A few spots outside the beltway to the north and west may dip into the 40s. Through Tonight: Clear, calm, and, for some, cool. Temperatures drop steadily as the sun goes down, quickly back into the 60s in most spots. By the early morning hours, lows range from the mid-to-upper 40s in the cooler suburbs to the mid-to-upper 50s downtown. With the crisp, dry air, the natural tendency is to open the windows. But for those of you dipping into the 40s (upper Montgomery, Loudoun and Frederick counties), you may be more comfy keeping them shut! Wednesday: Another tremendous day. More sunny skies and low humidity levels. We probably gain a couple degrees relative to today, with highs in the upper 70s to low 80s. Winds are light from the south. See Matt Rogers" forecast through the weekend. And if you haven't already, join us on Facebook and follow us on Twitter. Pollen: Trees are LOW, and grasses and weeds are MODERATE to HIGH. Mold spores are MODERATE. Seattle dry streak ends: After 49 days of dry weather, it finally rained in Seattle Monday. Reports the Seattle Times: "Seattle's almost-record-breaking dry weather streak came up just shy of the driest stretch of 51 days in the summer of 1951." Better seasonal hurricane forecasting? Researchers at NC State say they've come up with a new method for predicting seasonal hurricane activity. ..."researchers have developed a "network motif-based model" that evaluates historical data for all of the variables in all of the places at all of the times in order to identify those combinations of factors that are most predictive of seasonal hurricane activity," says the press release about this work.