PM Update: Typical summertime weather into Tuesday; tropical disturbance still organizing

Temperature Map

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

It was a warm and muggy one around here, but right around what we might expect at the end of June really. Both heat and humidity probably tick up tomorrow, and it’s likely to stay dry most spots through Tuesday. After that, rain threats may be on the increase, so enjoy for now!

Through Tonight: Slight chance a shower or rumble works off the mountains and into western parts of the area through evening, but they should generally die off as the sun sets. Otherwise, we’re partly cloudy through the night, with light south winds continuing to stream low-level moisture in. Thanks to some clouds and that added moisture, don’t plan on lows dipping past the upper 60s to low 70s.

Tomorrow (Tuesday): Humidity remains high, and may actually bump up a notch compared to today. Add in afternoon temperatures in the upper 80s and low 90s… it’s not going to feel super pleasant out there! We can’t rule out a late day storm or two, but warm air aloft should try to keep a lid on things.

See Jason Samenow’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.

Pollen update: Grass pollen is moderate/high, weed and mold spores are low/moderate, and tree pollen is low.

Tropical update: While the low pressure spinning off the southeast U.S. coast has become better organized today, Hurricane Hunters have found it’s still not quite to the point of being classified as a tropical depression or storm.


Tropical disturbance off the Florida coast at 4:30 p.m. (NASA)

However, the system does now have an 80% chance of becoming a tropical cyclone in the next 48 hours. If you missed our assessment earlier, take a look. We’ll have more as this storm develops and potentially tries to impact our weather later this week!

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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Jason Samenow · June 30