D.C. area forecast: Another July beauty ahead of a cloudier and more humid weekend

July 18

Today’s Daily Digit

A somewhat subjective rating of the day’s weather, on a scale of 1 to 10.

9
Great for July. Picky -1 off b/c I want lower temperature & dew point, along with less-intense sun angle!

Express Forecast

Today: Mainly sunny. Highs: Mid-to-upper 80s.

Tonight: Slight increase in clouds. Lows: 60s.

Tomorrow: More clouds than sun. Highs: Near 80 to mid-80s.

Sunday: Fairly cloudy, shower possible. Highs: Low-to-mid 80s.

FORECAST IN DETAIL

We get a chance to enjoy another amazing July day today. Almost a dry heat, before clouds, and even some showers, move in during the weekend. It may not feel truly summery again until we head back to work, though. We’ll have that hazy sunshine return along with showers and storms eventually. By Tuesday, we have a chance at seeing 90 again, especially south of town. Summer lovers may actually look forward to that? Something for everyone in this forecast!

Today (Friday): This should shape up as a good close to our workweek, considering it is mid-July. Sunshine dominates, thus so should your sunscreen coverage. Humidity levels remain unseasonably manageable. This is about the closest D.C. gets to a “dry heat,” I’d say. Only a light 5 mph northeasterly (but sometimes variable) breeze may blow a few times–don’t expect too much refreshment when in the hot sunshine. High temperatures still manage a solid showing, mostly in the mid-80s but perhaps a few upper 80s as well. Confidence: High

Tonight: Crowded patios! Al fresco dining will be in high demand with slowly cooling temperatures during the evening remaining in the 70s, and only a sporadic southeast breeze around 5 mph. Low temperatures by just before sunrise bottom out in the low-to-mid 60s. Downtown could hover near 70 because of the warm surroundings and the potential for some insulating clouds to move in later. Confidence: Medium-High

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

Tomorrow (Saturday): We may have roughly the same temperatures as Friday, but we have to add in more humidity. Cloudiness could dominate much of the day and help keep us in the near 80 to mid-80 degree range. Still decent for July! We have a disturbance in the lower Mississippi Valley starting to feed moisture toward our direction and it’s also helping steer light easterly breezes up, in the 5-10 mph range mostly. Shower chances should remain manageable and not disturb too many outdoor plans, with the risk around 15%. Confidence: Medium

Tomorrow night: Clouds continue be fairly thick overnight. Shower chances go up a bit as well, into about the 20-30% range. Lows temperatures remain mild in the mid-to-upper 60s, with a slightly muggy northeasterly breeze around 5 mph at times. Confidence: Medium-High

Sunday: This might be less of a sun-day and more of a cloud-day–especially during the morning. Showers may pop around the region but rain chances are still fairly low, in the 20% chance. We may even see more sun, and reduced rain chances by late in the day. Despite increased humidity it still remains less-than-oppressive and high temperatures should be held back thanks to clouds. Mostly into the low-to-mid 80s during the afternoon. Stay tuned this weekend as we figure out exactly how much cloud cover could dominate the day, and if showers might cause any disruptions. Confidence: Medium

A LOOK AHEAD

Sunday night: Clouds remain mostly in control overnight. There is a renewed chance (around 40%) of showers. It may remain just a bit warm and somewhat balmy, with low temperatures only able to reach the mid-and-upper 60s. Confidence: Low-Medium

On Monday we may see some clouds hang tough at times, but partly sunny skies should be around for much of the day. It could be somewhat hazy as humidity and moist air start feeding in from the south more noticeably. It is difficult to say just how many showers or storms may pop, but let’s call it a 40% chance across the region. Despite being somewhat muggy, we again have high temperatures halt their climb at the mid-80s or so. Confidence: Low-Medium

Tuesday’s chances for showers and thunderstorms remain about the same, perhaps a bit higher, in the 40-50% chance range. Skies should have some of that hazy, murky sunshine much of the day, with seasonable (sticky) humidity. High temperatures in the mid-to-upper 80s should feel nice and summery to all. Confidence: Low

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