A frontal boundary will bring another round of showers and thunderstorms to the region this afternoon, with locally heavy rain that could produce flash flooding in urban or poor-drainage areas. Conditions stay warm and muggy, with highs in the mid to upper 80s. The front crosses the area this evening, bringing drier air overnight before a more active pattern returns later in the week.
Today
High pressure will keep skies mostly sunny and conditions dry across Northern Virginia through Friday, with seasonable temperatures in the mid to upper 80s. An isolated shower or thunderstorm cannot be ruled out each afternoon, but overall rain chances stay low. Rain chances then increase this weekend as an upper-level system moves through the region.
Today
The Prince William County Animal Center posts photos of strays (currently STR239/2026) a few times a week to help owners reclaim their pets by calling (703) 792-6465, emailing [email protected], or visiting during posted hours, with proof of ownership and current rabies vaccination required.
A strong cold front will push across the region this afternoon and evening, bringing a slight risk of severe thunderstorms. Damaging winds are the main threat, with large hail and a brief tornado also possible. Heavy downpours are likely in stronger storms, and a Flood Watch is in effect for parts of northeast Maryland through early Wednesday.
An upper-level trough may increase clouds and shower chances by Saturday evening into Sunday.
Showers and thunderstorms are possible early this week as a strong frontal boundary moves through the region. Severe thunderstorms are possible Tuesday, with damaging winds and heavy rain the primary concerns. Conditions turn drier and sunnier later in the week.
By Thursday, high pressure builds overhead, reducing precipitation chances and bringing calmer conditions. Temperatures will gradually climb into the upper 80s, though drier air aloft should keep heat indices close to actual air temperatures. Precipitation chances increase again over the weekend as an upper-level trough approaches.
Showers and thunderstorms are likely today, mainly after 4 p.m., with some storms possibly becoming severe. Skies will be mostly cloudy with a high near 92 and heat index values as high as 103.
Southwest winds 8 to 13 mph with gusts up to 21 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and a quarter of an inch are expected, with higher amounts possible in thunderstorms.
Smoke from Canadian wildfires has reduced visibility to as low as 1-2 miles in spots. Air quality is expected to remain poor through today and possibly into tonight. Sensitive groups (people with heart/lung conditions, older adults, and children) should avoid all outdoor physical activity. Healthy individuals should avoid prolonged or strenuous outdoor exertion.
The NWS notes a strong cold front will increase severe weather risks Saturday, with possible lingering threats south of I-64 on Sunday. High pressure brings drier, more seasonable conditions Monday before another front midweek.
Areas of smoke from distant Canadian wildfires will linger over Northern Virginia today, creating hazy skies and continued hot conditions.
According to the National Weather Service Baltimore/Washington D.C. office, today will be mostly sunny with a high near 96. Heat index values could reach as high as 104 in spots. Winds will be light and variable. Areas of smoke are expected before noon.
Residents across Northern Virginia are bracing for another day of dangerous heat on Wednesday, with the National Weather Service (NWS) office in Baltimore/Washington, D.C. forecasting highs near 102°F and heat index values as high as 107°F. Heat Advisories remain in effect for most of the region outside the mountains and southern Shenandoah Valley.
Sunny skies and light west winds around 6 mph will dominate the day, but the combination of high temperatures and humidity will make it feel significantly hotter. Overnight lows will dip to around 77°F under mostly clear skies, offering little relief from the oppressive conditions.
After a relatively mild stretch, a strong upper-level high-pressure system is bringing dangerously hot conditions back to the region. The National Weather Service Baltimore/Washington office is forecasting highs near 100°F on Wednesday, with Heat Advisories expected for much of Northern Virginia.
Today (Tuesday, July 14): Sunny, with a high near 91. Light south wind.
