Today (Wednesday): One more decently nice day before the high heat and humidity return. Skies are partly to mostly sunny as temperatures trend a touch warmer with highs around 85 to 90. The humidity starts to become a bit more noticeable today, but it’s still pretty tame, with a breeze from the south around 10 mph. Confidence: High
Tonight: The humidity rises more substantially during the evening and overnight. But we should stay dry with increasing overnight clouds and muggier lows in the upper 60s to low 70s. Confidence: High
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Tomorrow (Independence Day): Heat, we meet again. It’s a very D.C. Fourth with high heat and humidity. Highs should make the mid-90s under partly sunny skies, with the heat index reaching at least near 100. Decent chance of scattered showers and thunderstorms during the mid-afternoon into evening. That doesn’t mean everyone will see a storm, but the potential for impact on July 4 festivities is definitely there. Confidence: Medium
Tomorrow night: Scattered showers and thunderstorms remain possible well into the evening. Overnight lows only dip to the very muggy low to mid-70s. Confidence: Medium
We’re partly sunny, hot and very humid Friday and Saturday with highs both days at least in the low to mid-90s, and the heat index peaking near or above 100. Both days have a significant chance of scattered showers and storms during the mid-afternoon into evening. Still very muggy Friday night and Saturday night with lows in the 70s. Confidence: Medium
A cold front moving through Saturday night should lower humidity a bit for Sunday, but may stay close enough for a chance of showers and storms, although probably a lower chance than the previous few days. Highs top out around 90 to the mid-90s. Confidence: Low-Medium
