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DC-area forecast: Pleasant today before humidity and storm chances build

Photo of garden at the Library of Congress Friday.
Garden at the Library of Congress Friday. (angela n./Flickr)

Always a human at the helm: Updated around-the-clock by Capital Weather meteorologists.

Happening now: Partly sunny today as morning readings rise into the 70s and 80s. Highs reach the upper 80s to low 90s with moderate humidity.

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What’s next? Highs in the 80s on Sunday but muggier, with increasing rain chances into the afternoon and evening. Shower and storm chances continue Monday.

Today’s daily digit — 7/10: Some sun, warmth, and moderate humidity start August with a solid day to spend outdoors. | 🤚 Your call?
The digit is a somewhat subjective rating of the day’s weather, on a 0-to-10 scale.

Forecast in detail

Today (Saturday): Partly sunny with highs in the upper 80s to low 90s. Dew points in the low to mid-60s keep humidity at relatively comfortable levels for early August. Winds from the south increase to 10 to 15 mph this afternoon, with gusts up to 20 to 25 mph possible by late evening. Confidence: Medium-High

Tonight: Cloud cover increases some during the evening but rain should hold off. Overnight lows dip into the upper 60s to mid-70s as dew points rise into the mid- to upper 60s, making it feel noticeably more humid. Winds from the south stay around 10 mph. Confidence: Medium-High

Hourly Forecast | Pollen, Air & UV

Tomorrow (Sunday): More clouds are in the forecast as highs reach the 80s. The chance of showers and perhaps a thunderstorm gradually increases during the afternoon, from 20 percent midday to near 50 percent by evening. Winds from the south continue at around 10 to 15 mph, with gusts topping 20 mph at times. Confidence: Medium

Tomorrow night: Cloudy skies with scattered showers and thundershowers likely (60 percent chance) at times in the evening and overnight. Lows fall into the low to mid-70s, keeping it muggy. Confidence: Medium

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A look ahead

More clouds kick off the workweek Monday with intermittent showers and storms likely as a cold front moves across the region. A few storms in the afternoon could be strong to severe. Highs reach the mid-80s, while heat indexes reach 90 to 95 thanks to muggy dew points rising to the mid-70s. Winds from the south are around 10 mph, with gusts up to 20 mph. Confidence: Medium

Clouds begin to break Tuesday, with partly sunny skies returning before a chance of widely scattered showers and thunderstorms in the late afternoon and evening. Highs reach the mid- to upper 80s. Humidity eases slightly, but it will still feel muggy with dew points in the upper 60s to low 70s. Confidence: Medium

A few scattered late-day showers and storms remain possible Wednesday, but many areas should stay dry. Partly cloudy skies continue, with highs in the mid- to upper 80s. Winds from the south pick up a bit, but nothing significant. Humidity sticks around, keeping that muggy feeling in place. Confidence: Medium

On this day

DC weather history for August 1

A violent 1983 microburst produced a staggering 149.5 mph wind gust at Andrews Air Force Base—one of the strongest ever recorded—just minutes after Air Force One had landed.

Sunrise6:10 a.m.Sunset8:21 p.m.
Avg High89°Avg Low72°
Rec High100° 2011Rec Low54° 1895Rec Rain2.84" 1948
Read full August 1 weather history →

Jason Samenow contributed to this report.

Madison Magaha

Madison Magaha

Weather nerd and meteorologist with experience in operational forecasting. Recent University of Maryland graduate.

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