PM Update: Here comes the warmth; seasonal allergies explained (VIDEO)

Temperature Map

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

Our late season cool snap is in its final hours, and a burst of warm air is poised to invade the region.  Today’s highs in the 60s are replaced by 80s tomorrow.  A shower can’t be ruled out as the warm front surges through the region in between.

Through Tonight: Mostly cloudy and much milder than last night thanks to the warm front.  Winds become out of the south, and lows range from the upper 40s in the cooler suburbs to the mid-50s downtown.  I can’t rule out a shower late at night (20 percent chance).

Tomorrow (Wednesday): Mostly cloudy in the morning with temperatures rising through the 60s quickly.  In the afternoon, skies are partly sunny and it turns toasty, with highs in the low-to-mid 80s…some upper 80s are possible into central Virginia. This is an impressive punch of warm air. There’s a 20-30 percent chance of a shower or thundershower, with the best odds in the northern suburbs in the first half of the day (although late afternoon activity can’t be entirely ruled out).

See  Matt Rogers’ 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.

Photo of the day

Pollen: Trees counts are HIGH, grass counts LOW-MODERATE, weed counts low, and mold spores are LOW.  Here’s a video in which I talk to Washingtonians about the pollen season, fresh out of the Post’s production studio:

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 · May 14, 2013