Today’s daily digit

A somewhat subjective rating of the day’s weather, on a scale of 0 to 10.

4/10: Ongoing heat and climbing humidity disgusts, late-day storms may bring strong wind gusts.

Express forecast

  • Today: Partly cloudy, afternoon storms possible. Highs: 87-91
  • Tonight: Possible evening storms, late clearing. Lows: 67-73
  • Tomorrow: Mainly sunny, dropping humidity and breezy. Highs: 85-89

Forecast in detail

An uncomfortably muggy day could provide the fuel for some strong to severe late-afternoon and evening storms. Once those clear the area late tonight, another timely cooler and drier push arrives for the weekend, with highs only in the low 80s. The fly in the ointment is the potential return of showers on Sunday.

Today (Thursday): High clouds are likely to stream across the area from the storms in the Great Lakes. This will offer little relief, as the humidity surges (dew points back in the low 70s) and highs still reach the upper 80s to low 90s. Scattered thunderstorms could reach the area mid- to late afternoon, some of which could be severe with damaging winds, hail and perhaps a tornado. How widespread they become is an open question, and it’s possible the greatest concentration focuses in northern Maryland. Most of the day, winds are from the south in the 5- to 10-mph range. Confidence: Medium-High

Tonight: More storms, some potentially severe, could sweep through the area through around midnight, although it’s unclear how numerous they’ll be. After that, skies should gradually clear with light west winds. Lows hold in the upper 60s to low 70s. Confidence: Medium-High

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Tomorrow (Friday): Morning humidity is still on the high side but northwest winds of 10 to 20 mph should help to bring drier air in later in the day. That will be welcome as the intense July sun still pushes highs into the mid- to upper 80s. Confidence: High

Tomorrow night: Winds die down in the evening, with humidity coming down noticeably. Temperatures slip below 80 for those out and about. Skies remain clear and lows fall all the way down to the upper 50s to low 60s toward Saturday morning. Confidence: High

A look ahead

Saturday is a real winner with low humidity and highs mainly in the low 80s despite the mostly sunny skies. Clouds start to increase overnight with lows in the low to mid-60s. Confidence: High

Spotty showers are possible on Sunday, which probably won’t amount to much. Even so, this forecast is still coming into focus so stay tuned for updates. Skies are variably cloudy with highs mostly in the low 80s. Overnight lows slip to the low to mid-60s. Confidence: Medium

Magnificent weather returns for Monday with clearing skies, low humidity and highs in the low to mid-80s. Confidence: Medium