Nbcwashington iconNbcwashingtonAug 18, 2026 ~1 min source read

Storm Team4 Forecast: Sunny, less humid Tuesday before rain chances later this week

Mostly sunny and hot Tuesday Cooler overnight Heavy rain possible Thursday Rain chances remain into the weekend Monday's sunshine helped D.C. That's eight more 90s this year compared to last but still well off the record pace of 54 days in the 90s back in the summer of 1988.

Storm Team4 Forecast: Sunny, less humid Tuesday before rain chances later this week

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Mostly sunny and hot Tuesday Cooler overnight Heavy rain possible Thursday Rain chances remain into the weekend Monday's sunshine helped D.C.

That's eight more 90s this year compared to last but still well off the record pace of 54 days in the 90s back in the summer of 1988.

metro will get close to 90° again this afternoon but with considerably lower humidity levels.

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The useful part

Mostly sunny and hot Tuesday Cooler overnight Heavy rain possible Thursday Rain chances remain into the weekend Monday's sunshine helped D.C. That's eight more 90s this year compared to last but still well off the record pace of 54 days in the 90s back in the summer of 1988. metro will get close to 90° again this afternoon but with considerably lower humidity levels.

How it works

  • hasn't dropped below 70° yet this month but has a real chance to get there.
  • Areas north and west of Dulles Airport will start off Wednesday morning in the low 60s.
  • Severe weather isn't a major concern for Thursday but locally heavy rain is certainly a possibility.

Details worth keeping

reach a high of 94° which was our 42nd day in the 90s this year. This slightly drier air will also allow for more overnight cooling. That's close to open-window weather for some.

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