Some familiar summer weather is expected across the D.C. area Saturday, as soupy air and oppressive heat fuel severe afternoon and evening thunderstorms.
Thursday and Friday both saw afternoon temperatures climb well into the 90s, while high humidity pushed heat index values above 100 and provided energy for afternoon and evening storms.
Saturday will bring another hot and humid day, with highs in the upper 80s to low 90s and heat index values nearing 100.
Thunderstorms will start rolling into the D.C. region during the afternoon and evening, with the greatest severe weather threat along and north of Interstate 66 and Route 50, 7News First Alert Meteorologist Steve Rudin said.
Those storms may produce damaging winds, large hail and torrential downpours. An isolated tornado can’t be ruled out, according to WTOP Meteorologist Mike Stinneford.
Storm coverage should decrease Sunday, but the heat and humidity will remain. Temperatures are expected to climb above 90 again, with heat index values 100.
Only isolated storms are expected Monday before rain and storm chances increase again Tuesday and into midweek, but heat will remain a concern.
In the District, Mayor Muriel Bowser activated a heat alert through 8 a.m. Thursday.
WTOP’s Ana Golden contributed to this report.
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Forecast
WTOP Meteorologist Mike Stinneford
An isolated shower or storm is possible before midnight, but most areas will stay rain free. Sunday will be a hot day, but with no storms to worry about. It will stay hot on Monday with a chance of a late day storm. Strong to severe storms are possible Tuesday afternoon and evening.
TONIGHT: Chance of a shower or thunderstorm before midnight. Muggy overnight with lows in the 70s
SUNDAY: Mostly sunny and hot. Highs in the mid to upper 90s
MONDAY: Mostly sunny and hot. Chance of a late day storm. Highs in the mid to upper 90s
TUESDAY: Hot and humid with afternoon storms. Highs in the low to mid 90s
Current conditions
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