9:15 p.m. update: The NWS has expanded the freeze warning to the entire region, noting temperatures may fall into the lower 30s in rural locations and those spots away from the coast. Once the freeze warnings begin late tonight, they run through 10 a.m., though most spots which reach freezing should rise above that mark shortly after sunrise. The odds for a widespread freeze remain best as you get north and west, but at least pockets of freezing temperatures are possible throughout the region as noted in our earlier update below.
4:30 p.m…. With fairly strong northwest winds, afternoon temperatures only in the near 50 to low 50s range, and at least periodic clouds, it felt downright chilly today. The stage has been set for the first freeze of the season for parts of the area tonight, and expect more of the same as we head into tomorrow.
Through Tonight: It’s a brisk evening, but winds should wane a bit at least. Other than that, mostly clear. A freeze warning goes into effect at 3 a.m. and lasts through 10 a.m.
, generally to the northwest of I-95. This does not include D.C. or places southeast of the city (see map). Low temperatures end up near or just below freezing in many of the northwest suburbs to as high as the upper 30s in the center of downtown. Suburbs east of D.C. and away from the water should also hit the low-to-mid 30s, and could flirt with 32, even if a bit warmer than places west.
Tomorrow (Friday): We finish the workweek off with a day much like today, as highs head for the low-to-mid 50s. You’ll probably want a jacket and maybe some gloves throughout, but especially in the morning. Skies range from mostly clear early to partly sunny during the midday. Winds around 10-15 mph from the northwest may be accompanied by higher gusts.
Toasty September: This week, NOAA announced that September 2013 went down as the 4th warmest September on record for the globe, and the 6th warmest for the United States. Key highlights for September in the United States included the easing of drought conditions in the Plains and parts of the West Coast, and of course record flooding in parts of Colorado. The month was the 12th wettest on record for the country.
Pollen update: Mold spores are low/moderate. All other pollen types are low.