PM Update: Highs reach 90 on Wednesday, slight chance of storms Wednesday night

Temperature Map

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

It’s been warm today but not unbearable, with temperatures hitting the upper 80s by mid-afternoon, and up to 89 degrees around 4 p.m. However, humidity is still relatively low as dew points have only maxed out in the upper 50s in many places. Today and tomorrow will round out the hottest days of the work week — highs will likely reach 90 (!) on Wednesday. What is this “summer weather” you speak of? We’re not familiar with it this year.

Through Tonight: Mostly clear skies continue through tonight as the temperature falls back to around 80 degrees by 8 p.m. Lows will bottom out in the mid to upper 60s in the city, and the lower 60s in our cooler suburbs. Winds will be from the east, shifting to the south, at  5 mph.

Tomorrow (Wednesday): Highs will be around 90 on Wednesday as southerly winds pump in the warmth. Dew points climb into the low to mid 60s, cranking up the humidity as the day wears on. There is a chance for some thunderstorms — 20 percent — in the late afternoon and evening. The chance gets higher the further west you go, as a cold front sweeps into the region from the northwest. Five to 10 mph winds will start the day from the south and then shift around to the northwest into the evening as the cold front passes through.

See Matt Rogers’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: Trees, grasses, and pollen are LOW. Mold spores are MODERATE.


Batter up! The sun sets over the National Mall on August 19. (Rob Cannon via Flickr)

Tornado-less zip codes

A new map of tornado activity illuminates the zip codes that haven’t had a confirmed tornado since 1950. Capital Weather Gang intern Jordan Tessler created the map using data from the Storm Prediction center.

Of course, just because it wasn’t recorded, doesn’t mean it didn’t happen. It’s possible that some of these areas in green have actually had a tornado, but no one was there to report it. It also goes without saying that even though a location might not have seen a tornado since 1950, that doesn’t mean it never will. Tornadoes have been reported in all 50 states over the decades!

Angela Fritz is an atmospheric scientist and The Post's deputy weather editor.
Comments
Show Comments
Most Read Local
Next Story
Angela Fritz · August 26