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PM Update: Clouds dominate through Thursday, some showers possible too; pollen on the rise

Temperature Map

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

Gray skies and cool air of the morning could not hold back the warmth surge this afternoon, and many places made it up to the mid-60s or around 70 for highs. Really warm air wasn’t too far off either, with a large part of Virginia basking in 80-degree or higher temperatures today. Our proximity to a warm front hanging in the region means we won’t be seeing readings that warm locally in the time ahead.

Through Tonight: Clearer skies of the late day again give way to mostly cloudy conditions. There could be a sprinkle or brief shower after midnight, especially north and northwest of the city. Lows range from the mid-40s to near 50 most spots.

Tomorrow (Thursday): Clouds dominate the day, thanks to a warm front still hanging out in the area and a wave of low pressure riding along it. Morning brings an outside risk of a passing sprinkle or shower, and odds increase to at least 50% of some shower activity by late day or evening. It shouldn’t be an all day thing though, and may focus north. Highs still shoot for the mid-60s (63-67), perhaps even higher if we see more sunshine. Winds are from the east around 5-10 mph.

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.

April 1 — The first hints of green emerge on a northwest D.C. tree. (Ian Livingston via Flickr)

Bless you: As plants continue to come to life, tree pollen remains high in the area, with 109 grains per cubic meter observed at last count. This is only about 1/3rd the typical level for this time of year, and about 1/10th of the typical peak output. All other pollens remain low still. Make no mistake, a bumpy road lies ahead for allergy sufferers!

Related: Goodbye, polar vortex. Hello, pollen vortex!

(Susan E Kosisky, US Army Centralized Allergen Extract Lab)
Ian Livingston is a forecaster/photographer and information lead for the Capital Weather Gang. By day, Ian is a defense and national security researcher at a D.C. think tank.
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