D.C.-area forecast: A little nicer today, cold and blustery tomorrow; Sunday winter storm?Express forecastToday: Becoming partly sunny, steady breeze. Forecast in detailWhen partly sunny and low-to-mid-40s conditions could make today the most comfortable day of the forecast period, you know you’ve got a solid winter air mass settling in. Temperatures struggle to reach 40 tomorrow and Friday with strong winds sending wind chills into the 20s, perhaps even the teens at times. Today (Wednesday): After some early-morning fog, partly sunny skies help temperatures rebound somewhat today, rising through the 30s this morning with afternoon highs in the low to mid-40s. That puts us smack in the middle of strong winds between the systems, from the northwest at 15-25 mph, with gusts 30-40 mph.