The Washington Post

D.C. area forecast: Heat picks up today, humidity piles on for Friday, weekend scorcher

* Excessive heat watch Friday *


Today: Sunny, low-to-moderate humidity. 93-97. | Tonight: Slight t’storm risk late night. 71-76. | Tomorrow: Partly sunny, humid, p.m. t’storm possible. 97-101. | Get Express Forecast by E-mail


Today (Thursday): Barely a cloud in the sky on this day as the humidity is slow to ratchet up. That allows the sun to bear down uninterrupted and our baked soils to pump up the heat. Breezes are light but appreciated. Highs are firmly in the mid-90s. Confidence: High

Tonight: You can almost feel the humidity rising this evening with readings hanging in the 80s. A disturbance well to our north could kick off a few thunderstorms in the pre-dawn. The chance of rain is 20-30%. Lows should end up in the low-to-mid 70s. Confidence: Medium-High

For related traffic news, check out Dr. Gridlock. Keep reading for the forecast through the weekend...

Tomorrow (Friday): Sunshine is mixed with a few clouds in the early morning. But those likely fade before another batch is set to bubble up in the heat of the afternoon. Humidity is back in full force and breezes are just barely enough to be noticed. Temperatures climb rapidly with highs topping out in the upper 90s to lower 100s and heat indices 5-10 degrees higher. Confidence: Medium-High

Tomorrow night: A few of the thunderstorms that pop up over the Blue Ridge in the late afternoon could sneak into the area in the evening (40% chance). Any storms are likely to disappear by midnight. Evening readings sizzle in the mid-to-upper 80s unless you get a thundershower. Lows end up in the lower 70s in rain spots and upper 70s in the have nots. Confidence: Medium


Saturday is a good time to contemplate an Alaskan vacation. Temperatures race upwards under morning sun. However, the humidity spawns plenty of clouds and a little upper air lift could arrive just in time to kick off a batch of late day thunderstorms across the area. Odds you see rain are 30-40%.. Highs should still make the mid-to-upper 90s before the storms do their best to cut heating short. Evening readings slowly fall through the 80s with overnight lows in the 70s. Confidence: Medium

Sunday looks like a repeat performance of Saturday. Hot, humid, 30-40% chance of afternoon thunderstorms and highs in the mid-to-upper 90s. The evening clears up late with 80s again giving way to overnight lows in the 70s. Confidence: Medium

Monday is another day of heat and humidity to add to our string that is accumulating faster than I would like. However a few more clouds and a 40% chance of thunderstorms could hold highs in the low-to-mid 90s. Confidence: Medium

David Streit grew up on a farm/ranch in Nebraska. Witness to severe weather of all varieties focused his career path. Degrees from the universities of Nebraska and Wisconsin prepared him to be a forecaster for Capital Weather Gang as well as his day job as COO of Commodity Weather Group.


Success! Check your inbox for details. You might also like:

Please enter a valid email address

See all newsletters

Show Comments
Most Read


Success! Check your inbox for details.

See all newsletters

Your Three. Videos curated for you.
Play Videos
Making family dinnertime happen
Deaf banjo player teaches thousands
New limbs for Pakistani soldiers
Play Videos
A veteran finds healing on a dog sled
Learn to make this twice-baked cookie
How to prevent 'e-barrassment'
Play Videos
Syrian refugee: 'I’m committed to the power of music'
The art of tortilla-making
Michael Bolton's cinematic serenade to Detroit
Play Videos
Circus nuns: These sisters are no act
5 ways to raise girls to be leaders
Cool off with sno-balls, a New Orleans treat