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An EF-1 Tornado struck Baltimore/Dundalk MD Friday May 16th, 2025.

Hazardous Weather Conditions

Hazardous Weather Outlook

Current conditions at

Washington/Dulles International Airport, DC (KIAD)

Lat: 38.93°NLon: 77.45°WElev: 312ft.

Light Rain

55°F

13°C

Humidity	93%
Wind Speed	E 7 mph
Barometer	29.89 in (1011.9 mb)
Dewpoint	53°F (12°C)
Visibility	7.00 mi
Wind Chill	53°F (12°C)
Last update	21 May 10:52 am EDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Herndon VA

Today
High: 59 °F
Scattered
Showers
Tonight
Low: 54 °F
Showers and
Patchy Fog
then
Scattered
Showers and
Patchy Fog
Thursday
High: 67 °F
Showers
Likely
Thursday Night
Low: 51 °F
Chance
Showers
Friday
High: 66 °F
Mostly Sunny
then Slight
Chance
Showers
Friday Night
Low: 48 °F
Mostly Clear
Saturday
High: 66 °F
Mostly Sunny
Saturday Night
Low: 48 °F
Mostly Clear
Sunday
High: 67 °F
Partly Sunny
then Chance
Showers

Detailed Forecast

Today

Scattered showers before 2pm, then scattered showers after 4pm. Cloudy, with a high near 59. East wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

Tonight

Showers and possibly a thunderstorm before 3am, then isolated showers between 3am and 5am. Patchy fog. Low around 54. East wind 5 to 9 mph becoming light after midnight. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday

Showers likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 4pm, then a chance of showers and thunderstorms after 4pm. Cloudy, then gradually becoming mostly sunny, with a high near 67. South wind 5 to 10 mph becoming west in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 51. West wind around 7 mph. Chance of precipitation is 30%.

Friday

A slight chance of showers after 2pm. Mostly sunny, with a high near 66. West wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

Friday Night

Mostly clear, with a low around 48.

Saturday

Mostly sunny, with a high near 66.

Saturday Night

Mostly clear, with a low around 48.

Sunday

A chance of showers after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.

Sunday Night

A chance of showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.

Memorial Day

Showers likely. Mostly cloudy, with a high near 69. Chance of precipitation is 60%.