High pressure continues to work into the area, bringing with it heat and humidity. Highs today will push into the mid to upper 80s under partly sunny skies. There is a slight chance of a shower or thunderstorm in the mountains this afternoon. The threat will shift eastward tonight where an isolated shower is possible.
The heat continues to build tomorrow with highs in the mid 90s. The heat combined with the increase in humidity will push heat index values to near 100 degrees.
Thursday looks to be the hottest day of the week, with highs in the mid to upper 90s in most areas. Lows Thursday night will only fall into the 70s and may not fall past 80 in downtown Washington and Baltimore.
A cold front approaches on Friday, bringing a better chance of showers and thunderstorms. Highs Friday will be in the low 90s.
The front pushes through late Friday into Friday night, bringing slight relief from the oppressive heat. Highs this weekend will be in the upper 80s to near 90 with slightly less humidity.