Dulles International Airport (IAD) 15 Day Weather Forecast, Washington United States
Current weather conditions and 15 day weather forecast for Dulles International Airport in Washington, United States including weather daily high/low temperature, warnings, chance of precipitation, pressure, humidity/wind chill, rain, wind speed, cloud, pressure, and UV index.
Current weather conditions at IAD
| 28 July 2026 Tue 22 ° C ( 71.6°F )  Overcast |
Feels Like : 22 ° C / 71.6°F Humidity : % 88 Pressure : 995 mb Wind Speed : 7.2 kmph / 4.5 miles from SSW 
Visibility : 16.1 km Precipitation (rainfall) : 0 mm Cloud (%) : 100 |
15-day weather forecast for Dulles International Airport, Washington, United States
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 28 July 2026 Tue |  Sunny |
20.7 ° C | 34.3 ° C | 25.7 ° C | % 77 | 11.2 km/h | 68% |
| 29 July 2026 Wed |  Partly Cloudy |
18.6 ° C | 27.6 ° C | 22.3 ° C | % 75 | 19.8 km/h | 22% |
| 30 July 2026 Thu |  Patchy rain nearby |
19.7 ° C | 25.8 ° C | 22.2 ° C | % 75 | 18.7 km/h | 70% |
| 31 July 2026 Fri | Sunny |
17.4 ° C | 28.6 ° C | 23 ° C | % 72 | 10.8 km/h | 17% |
| 01 August 2026 Sat | Sunny |
18.8 ° C | 30.1 ° C | 23.9 ° C | % 73 | 11.9 km/h | 10% |
| 02 August 2026 Sun | Partly Cloudy |
20.1 ° C | 29.9 ° C | 23.7 ° C | % 82 | 15.5 km/h | 64% |
| 03 August 2026 Mon |  Light rain shower |
20.8 ° C | 29.9 ° C | 24.3 ° C | % 81 | 8.6 km/h | 77% |
| 04 August 2026 Tue | Sunny |
19.2 ° C | 31.7 ° C | 25.2 ° C | % 65 | 8.3 km/h | 4% |
| 05 August 2026 Wed | Partly Cloudy |
20.7 ° C | 33.1 ° C | 26.3 ° C | % 65 | 10.1 km/h | 6% |
| 06 August 2026 Thu | Sunny |
22.1 ° C | 32.8 ° C | 26.2 ° C | % 67 | 14.4 km/h | 17% |
| 07 August 2026 Fri | Patchy rain nearby |
21.2 ° C | 32.7 ° C | 26.5 ° C | % 74 | 12.6 km/h | 75% |
| 08 August 2026 Sat |  Mist |
23.1 ° C | 32.9 ° C | 27.3 ° C | % 78 | 11.9 km/h | 75% |
| 09 August 2026 Sun | Sunny |
22.6 ° C | 34.4 ° C | 27.7 ° C | % 73 | 10.8 km/h | 59% |
| 10 August 2026 Mon | Patchy rain nearby |
22.5 ° C | 28.8 ° C | 24.8 ° C | % 76 | 16.6 km/h | 57% |
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