PM Update: Astonishingly nice weather Wednesday; Earth’s 4th warmest August

September 17, 2013

Temperature Map

Temperatures: Latest D.C. area temperature map. See interactive map on our Weather Wall.

We fast forwarded to October today, with high temperatures barely touching the 70-degree mark. Tonight is October-like for sure, with the chilliest low temperatures since May. But Wednesday’s recovery is sweet, with non-stop sunshine and temperatures reaching and passing the 70-degree threshold with greater ease.

Through Tonight: Clear and, in some areas, borderline cold.  Lows dip all the way down to 40 in the far west and northwest suburbs, bottoming out closer to 50 downtown.  Lights winds.

Tomorrow (Wednesday): It’s another morning that begs for a fleece. But cloudless skies help temperatures quickly run-up through the 40s and 50s by mid-late morning, and through the 60s by mid-afternoon.  By 3 or 4 p.m., highs range from 70-74, with the gentlest of breezes.

See Matt Rogers’ 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.

Pollen: Tree, grass, and weed counts are LOW. Mold spores are HIGH (locally – but in the low range by national standards).


Clouds were nowhere to be seen across the entire northern Mid-Atlantic and Northeast land areas Tuesday afternoon (NASA).

August global temperature update: NOAA says August tied for the 4th warmest on record globally: “It .. marked the 35th consecutive August and 342nd consecutive month (more than 28 years) with a global temperature above the 20th century average. The last below-average August global temperature was August 1978 and the last below-average global temperature for any month was February 1985.”

Jason is currently the Washington Post’s weather editor. A native Washingtonian, Jason has been a weather enthusiast since age 10.
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Jason Samenow · September 17, 2013