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From WTOP News.com: Full Weather Report

Last updated on September 25, 2025 at 4:08 a.m.
Brian van de Graaff, 7News First Alert Meteorologist

TODAY:
Mostly cloudy; scattered showers, storms
Highs: 78-84
Winds: Southwest 5-15+ mph
Rain and storms are likely today, so make sure you have the rain gear ready to go. It will also be exceptionally humid for late September with dewpoint temperatures in the low 70s (that’s more typical for the summer months). Overcast skies are likely throughout the day with showers likely this morning. There may be a lull in the precipitation midday before another round of scattered showers and storms develops during the afternoon and evening hours. The Storm Prediction Center has the area in the Level 1 out of 5 ‘Marginal’ risk category for the threat of damaging wind gusts and an isolated tornado. The severe weather risk is low, but you will still want to have a way to get weather alerts later today.

TONIGHT:
Mostly Cloudy
Isolated Showers
Lows: 65-71
Winds: Light
Mild and muggy conditions are expected overnight with lingering showers dotting radar. Areas of patchy fog are possible with continued high humidity…

https://wtop.com/weather/

#DCwc #MDwx #VAwx

NWS Baltimore MD/WASH DC
347 AM EDT Sat Jul 19 2025

MARINE

Light southerly winds develop through the day, though mostly around 5-10 knots. A cold front moves through Sunday night, and that could bring a period of SCA winds to the open waters of the Chesapeake Bay.

Daily showers and thunderstorm continue through the weekend. The highest rain chances today focus along the Tidal Potomac and south of the Bay Bridge. For Sunday, convection looks possible across all the waters. Any thunderstorm will pose a threat to mariners due to strong wind gusts and lightning strikes. Special Marine Warnings are likely needed at times each afternoon to evening as thunderstorms move across the waters.

Dry conditions and north winds around 10 knots Monday into Monday night, and winds should remain just below SCA levels.

Sub-SCA level winds are expected through Wednesday with Canadian high pressure anchored north of the waters. Some southerly channeling is possible later in the week as winds switch back to the south and southeast with high pressure pushing offshore.

#DCwc #MDwx #VAwx

Area Forecast Discussion
NWS Baltimore MD/WASH DC
347 AM EDT Sat Jul 19 2025

…Some light showers are developing just north of the boundary early this morning in northern to northeast MD. The front eventually lifts north of the area later today as a warm front as a light south wind develops. The widespread clouds once again keep highs in the mid to upper 80s. Heat indices between 90-100 east of the Blue Ridge.

Convection is once again expected during the afternoon to evening hours, with the highest coverage most likely from the Central Shenandoah Valley to Central Virginia. Much like yesterday, abundant instability & weak shear will help support some better organized clusters of thunderstorms.

As storms are slightly better setup today, there is going to be a risk for a few severe thunderstorms, with damaging winds as the primary threat. SPC has upgraded to a Slight Risk (level 2 of 5) across central VA, with a Marginal Risk (level 1 of 5) elsewhere. Based on the latest CAMs (for what it`s worth) it appears the greatest chance for severe is south of I-66 & east of the Blue Ridge.

Storms are also going to be capable of producing isolated to scattered instances of flooding. Given the signal for a second day of heavy rainfall in central VA, a Flood Watch has been issued from 2PM to 10PM today.

Shower & thunderstorm activity winds down in the evening, though showers could continue in the Alleghenies through the night. Warm & muggy as lows settle in the 70s.

#DCwc #MDwx #VAwx

From WTOPNews.com: Another round of winter weather: Wintry mix expected in the DC area Wednesday night

https://wtop.com/weather-news/2025/02/another-round-of-winter-weather-wintry-mix-expected-in-the-dc-area-wednesday-night/