7:00 AM | Update on the weekend solar storm; hot and humid through mid-week then late week relief

6-Day Forecast


Mostly sunny, hot, humid, highs near 90 degrees


Mostly clear, mild, lows in the upper 70’s


Mostly sunny, very hot and humid, mid-to-upper 90’s

Tuesday Night

Mainly clear, mild, upper 70’s


Partly sunny, very hot and humid, showers and thunderstorms likely late in the day and at night, mid 90’s


Partly sunny, not as hot, cannot rule out another shower or thunderstorm, upper 80’s


Mostly sunny, comfortable, low-to-mid 80’s


Mostly sunny, comfortable, low-to-mid 80’s


A long-lasting geomagnetic storm did occur over the weekend as a result of the coronal mass ejection (CME) from Thursday’s X-class solar flare. At first the CME’s impact seemed relatively weak, but then conditions in the wake of the CME became somewhat stormy with satellites in geosynchronous orbits exposed to solar wind plasma according to NASA Goddard scientists. Also, northern lights were visible over the weekend (where the skies were clear) as far south as Arkansas, Missouri, Kansas and Nebraska and across many northern US states from Maine to Washington.

High pressure off of the east coast will dominate the weather scene into mid-week. From this position, the high will pump in hot and humid air with temperatures likely to peak on Tuesday and Wednesday well up in the 90’s throughout much of the Mid-Atlantic. A cold front will pass through by Thursday and bring relief for the late week with cooler and less humid air moving in.