PM Update: Shower chances up tonight, and wet on Tuesday


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.

Cloudy, damp and cool. That was today in a nutshell, and aptly describes the next few days. We’ll turn up the “damp” part most of all heading through tomorrow, as rain that was pretty hit or miss today increases in coverage and intensity overnight tonight and into Tuesday.

Through Tonight: While we’re solidly stuck in the gray and damp (drizzly mist is possible when it’s not raining) through the night, rainfall should not be particularly intense in our immediate area. However, showers become likely after midnight. The heaviest wants to remain southwest and south through the pre-dawn hours, but possibly creeping in better by sunrise. Lows dip to the low-to-mid 50s.

Tomorrow (Tuesday): Tuesday features more in the way of showers, with near 100% odds, though it could still be scattered at times and may still focus on the southern and western parts of the area. Rainfall totals of about 0.25-0.50″ are possible during the day.  Highs shoot for the low-and-mid 60s most spots.

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.


National Arboretum on April 28, 2013. (John J. Young via Flickr)

Fire weather: Cooler and showery weather over California has helped bring large fires under growing control. A Ventura County blaze that grew to more than 28,000 acres is now 80% contained. There is some concern that new fires will be sparked by lightning, thanks to very cold air aloft from a storm system somewhat similar (although weaker) than the one impacting this area and to the south.

Pollen update: Tree pollen is high at 143 grains per cubic meter of air. Grass pollen is moderate (high locally) at 6.7 grains per cubic meter. All other pollens are low.

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.
Comments
Show Comments
Most Read Local

Heat Tracker

45
90-degree days year-to-date
Yearly Average
36
Record Most
67 (1980,2010)
Record Fewest
7 (1886,1905)
Last Year
24

At a Glance

Mon.

thunderstorms
-- /88°
Drop 30%

Tue.

partlycloudyday
73° /95°

Wed.

thunderstorms
76° /93°

Thu.

partlycloudyday
77° /94°

Fri.

thunderstorms
75° /93°
Drop 20%

Sat.

partlycloudyday
74° /90°
National Airport
Dulles
BWI

Right Now

D.C. Area Almanac

 
National
Dulles
BWI
Avg. High
 
Avg. Low
 
Rec. High
 
Rec. Low
 
Sunrise
 
Sunset
°F
 
 
°C
Next Story
Jason Samenow · May 6, 2013

To keep reading, please enter your email address.

You’ll also receive from The Washington Post:
  • A free 6-week digital subscription
  • Our daily newsletter in your inbox

Please enter a valid email address

I have read and agree to the Terms of Service and Privacy Policy.

Please indicate agreement.

Thank you.

Check your inbox. We’ve sent an email explaining how to set up an account and activate your free digital subscription.