Humidity was delightfully low today, but no shortage of sunshine helped us log our 47th 90+ day of 2012. We likely tack on number 48 Friday before scattered showers and storms arrive in the early evening hours.

Through Tonight: A picture perfect summer evening with low humidity levels and temperatures slowly falling back through the 80s. Humidity does slowly increase overnight from low to moderate levels. So lows are a little warmer than last night, ranging from near 60 in the cooler suburbs to the upper 60s downtown.

Friday: Most of us awaken to comfortable 60s and tolerable humidity levels. But winds from the southwest (near 10 mph) and morning sunshine quickly push temperatures through the 70s and 80s. Afternoon highs reach 90-95. Yes, we have a chance to tie 1980’s record for most 95+ days at 28 (27 so far). Clouds start to bubble up mid-to-late afternoon, with showers and storms possible, particularly in the 5-11 p.m. window during the evening. A few storms could be strong.

See David Streit’s forecast through the weekend. And if you haven’t already, join us on Facebook and follow us on Twitter. For related traffic news, check out Dr. Gridlock.

National Weather Service Sterling, Va. open house: On the weekend of September 22-23, our local NWS office will open its doors. Tours, weather balloon launches, kid-friendly experiments and a speaker series featuring NOAA Administrator Jane Lubchenco and Congressman Frank Wolf are planned. More information.

Pollen: Trees and grasses are LOW, weeds are LOW-MODERATE, and mold spores are MODERATE.