Washington Dulles International Airport Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Washington Dulles International Airport in one place.
Sunny, with a high near 100.
Local Weather Overview
This forecast page for Washington Dulles International Airport is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 29, 2026 12:02 AM EDT.
The active forecast window currently covers Jul 2 to Jul 5, 2026 for Washington Dulles International Airport.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 2 to Jul 5, 2026
- Latest sync
- Jun 29, 2026 12:02 AM EDT
- Forecast office
- LWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Washington Dulles International Airport
Friday looks like the warmest upcoming period in Washington Dulles International Airport at 101 degrees F.
Saturday Night is the coolest period ahead with temperatures near 73 degrees F.
The strongest winds are forecast for Friday at about 2 to 8 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 29, 2026 12:02 AM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- LWX
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 77.
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 101. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 75. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 98. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 95.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Jul 2
|
Sunny
|
100°F |
2 to 6 mph
W
|
|
Thursday Night
Jul 2
|
Mostly Clear
|
77°F |
5 mph
W
|
|
Friday
Jul 3
|
Sunny then Slight Chance Showers And Thunderstorms
|
101°F |
2 to 8 mph
NW
|
|
Friday Night
Jul 3
|
Slight Chance Showers And Thunderstorms
|
75°F |
3 to 8 mph
NW
|
|
Independence Day
Jul 4
|
Mostly Sunny then Chance Showers And Thunderstorms
|
98°F |
3 to 7 mph
NW
|
|
Saturday Night
Jul 4
|
Chance Showers And Thunderstorms
|
73°F |
2 to 7 mph
W
|
|
Sunday
Jul 5
|
Mostly Sunny then Chance Showers And Thunderstorms
|
95°F |
2 to 7 mph
NW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Washington Dulles International Airport.
