Hazardous Weather Conditions
Current conditions at
Washington/Dulles International Airport, DC (KIAD)
Lat: 38.93°NLon: 77.45°WElev: 312ft.
A Few Clouds
76°F
24°C
| Humidity | 91% |
| Wind Speed | S 5 mph |
| Barometer | 30.03 in (1016.6 mb) |
| Dewpoint | 73°F (23°C) |
| Visibility | 10.00 mi |
| Heat Index | 76°F (24°C) |
| Last update | 14 Jul 2:52 am EDT |
Extended Forecast for
3 Miles SSW Herndon VA
Flood Watch July 14, 02:00pm until July 15, 12:00am
Overnight
Low: 73 °F
Slight Chance
ShowersMonday
High: 89 °F
Chance
T-stormsMonday Night
Low: 72 °F
T-storms then
Chance
ShowersTuesday
High: 88 °F
Chance
Showers then
Showers
LikelyTuesday Night
Low: 73 °F
Showers
Likely then
Slight Chance
ShowersWednesday
High: 91 °F
Slight Chance
T-storms then
Showers
LikelyWednesday Night
Low: 74 °F
Showers
Likely then
Mostly CloudyThursday
High: 94 °F
Mostly Sunny
then Chance
T-stormsThursday Night
Low: 75 °F
Chance
T-storms then
Partly Cloudy
Detailed Forecast
Overnight
A slight chance of showers. Mostly cloudy, with a low around 73. Calm wind. Chance of precipitation is 20%.
Monday
A chance of showers and thunderstorms, mainly after noon. Partly sunny, with a high near 89. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 40%.
Monday Night
Showers and thunderstorms, mainly before 8pm. Low around 72. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Showers and thunderstorms likely before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 73. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Wednesday
A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 91. Chance of precipitation is 70%.
Wednesday Night
Showers likely and possibly a thunderstorm before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 60%.
Thursday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 94. Chance of precipitation is 50%.
Thursday Night
A chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 75. Chance of precipitation is 30%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 93. Chance of precipitation is 50%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 90. Chance of precipitation is 50%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 89. Chance of precipitation is 40%.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles SSW Herndon VA
38.93°N 77.42°W (Elev. 308 ft)
38.93°N 77.42°W (Elev. 308 ft)
1:30 pm EDT Jul 13, 2025
3am EDT Jul 14, 2025-6pm EDT Jul 20, 2025
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