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PM Update: Broken record of high humidity and periodic rain plays on

7:35 p.m. Update: TORNADO WARNING for south Prince George’s county until 8 p.m. Locations impacted include Clinton, Marlton and Andrews Air Force Base. The possible tornado was located north of Waldorf and west of Brandywine, moving northeast at 15 mph. Waldorf is not included in the warning area.

Radar & lightning:Latest regional radar shows movement of precipitation and lightning strikes over past two hours. Refresh page to update. Click here or on image to enlarge. Or see radar bigger on our Weather Wall.

Highs in the low-to-mid 80s in July? Awesome, right?! Well, maybe not, when you factor in the humidity. Even after days upon days of this moist air mass, getting used to dew points near and above 70 isn’t too easy. We’re going to get some more time to “acclimate” while dodging showers and storms in the days ahead.

Through Tonight: We stay mostly cloudy with scattered showers and thunderstorms in the evening, trending mainly to just showers overnight. While periodic showers remain likely, and may drop heavy rain in spots, not everyone will see much overnight. Lows fall to near 70 in the cool spots, perhaps up closer to the mid-70s downtown. Light south winds help keep us in the soup.

Tomorrow (Tuesday): It’s another mostly cloudy day on average, but we should also see some sunnier times in between the thicker overcast. Any daytime heating just promotes more precipitation, and periods of heavy showers and thunderstorms continue to be likely at times. There are some signs there could be more in the way of widespread rain tomorrow compared to today, but that’ll be hard to pin down for sure until tomorrow. Highs range from near 80 to the mid-80s as a light south wind persists.

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.

“Rain over Silver Spring.” (Joe Flood via Flickr)

Drought forecasts: NOAA announced a new drought product today. A monthly drought outlook will help “give more timely and accurate drought predictions across the United States” according to the release. This outlook adds to seasonal predictions by NOAA and a weekly drought update from the U.S. drought monitor.

Pollen update: Grass and weed pollen remain LOW. Mold spores are HIGH and loving the moisture content of late.

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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