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
| 13 August 2025 Wed 24.4 ° C ( 75.9°F )  Partly Cloudy |
Feels Like : 26.3 ° C / 79.3°F Humidity : % 91 Pressure : 1015 mb Wind Speed : 5.8 kmph / 3.6 miles from SSW 
Visibility : 16 km Precipitation (rainfall) : 0 mm Cloud (%) : 0 |
15-day weather forecast for Dulles International Airport, Washington, United States
| Date | |
|---|---|
| 13 August 2025 Wed | |
| Weather forecast | Partly Cloudy |
| Low temperature | 25.5 ° C |
| High temperature | 35 ° C |
| Average Temperature | 28.9 ° C |
| Humidity | % 71 |
| Wind | 15.1 km/h |
| Chance of rain | 0% |
| 14 August 2025 Thu | |
| Weather forecast |  Moderate rain |
| Low temperature | 21.9 ° C |
| High temperature | 34.8 ° C |
| Average Temperature | 27.7 ° C |
| Humidity | % 73 |
| Wind | 13.3 km/h |
| Chance of rain | 85% |
| 15 August 2025 Fri | |
| Weather forecast | Partly Cloudy |
| Low temperature | 24.3 ° C |
| High temperature | 33 ° C |
| Average Temperature | 28.8 ° C |
| Humidity | % 60 |
| Wind | 9 km/h |
| Chance of rain | 0% |
| 16 August 2025 Sat | |
| Weather forecast | Partly Cloudy |
| Low temperature | 22.8 ° C |
| High temperature | 32.3 ° C |
| Average Temperature | 26.8 ° C |
| Humidity | % 70 |
| Wind | 9.4 km/h |
| Chance of rain | 0% |
| 17 August 2025 Sun | |
| Weather forecast |  Sunny |
| Low temperature | 20.9 ° C |
| High temperature | 33.7 ° C |
| Average Temperature | 25.6 ° C |
| Humidity | % 73 |
| Wind | 11.2 km/h |
| Chance of rain | 0% |
| 18 August 2025 Mon | |
| Weather forecast | Sunny |
| Low temperature | 22 ° C |
| High temperature | 36 ° C |
| Average Temperature | 27.7 ° C |
| Humidity | % 65 |
| Wind | 8.3 km/h |
| Chance of rain | 0% |
| 19 August 2025 Tue | |
| Weather forecast |  Patchy rain nearby |
| Low temperature | 20.3 ° C |
| High temperature | 35.8 ° C |
| Average Temperature | 26.9 ° C |
| Humidity | % 71 |
| Wind | 16.2 km/h |
| Chance of rain | 82% |
| 20 August 2025 Wed | |
| Weather forecast | Sunny |
| Low temperature | 17.6 ° C |
| High temperature | 26.7 ° C |
| Average Temperature | 21.5 ° C |
| Humidity | % 60 |
| Wind | 16.6 km/h |
| Chance of rain | 0% |
| 21 August 2025 Thu | |
| Weather forecast | Partly Cloudy |
| Low temperature | 14.3 ° C |
| High temperature | 24.5 ° C |
| Average Temperature | 19 ° C |
| Humidity | % 57 |
| Wind | 9.7 km/h |
| Chance of rain | 0% |
| 22 August 2025 Fri | |
| Weather forecast | Sunny |
| Low temperature | 15.3 ° C |
| High temperature | 26.8 ° C |
| Average Temperature | 21 ° C |
| Humidity | % 64 |
| Wind | 14.8 km/h |
| Chance of rain | 0% |
| 23 August 2025 Sat | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 18.5 ° C |
| High temperature | 23.6 ° C |
| Average Temperature | 21 ° C |
| Humidity | % 86 |
| Wind | 15.5 km/h |
| Chance of rain | 83% |
| 24 August 2025 Sun | |
| Weather forecast | Patchy rain nearby |
| Low temperature | 20.2 ° C |
| High temperature | 30.2 ° C |
| Average Temperature | 23.9 ° C |
| Humidity | % 73 |
| Wind | 12.6 km/h |
| Chance of rain | 81% |
| 25 August 2025 Mon | |
| Weather forecast | Sunny |
| Low temperature | 15.3 ° C |
| High temperature | 26.5 ° C |
| Average Temperature | 20.3 ° C |
| Humidity | % 55 |
| Wind | 12.6 km/h |
| Chance of rain | 0% |
| 26 August 2025 Tue | |
| Weather forecast | Sunny |
| Low temperature | 15 ° C |
| High temperature | 29 ° C |
| Average Temperature | 21.6 ° C |
| Humidity | % 54 |
| Wind | 8.3 km/h |
| Chance of rain | 0% |
| Date | Weather forecast | Low temperature | High temperature | Average Temperature | Humidity | Wind | Chance of rain |
|---|---|---|---|---|---|---|---|
| 13 August 2025 Wed | Partly Cloudy |
25.5 ° C | 35 ° C | 28.9 ° C | % 71 | 15.1 km/h | 0% |
| 14 August 2025 Thu | Moderate rain |
21.9 ° C | 34.8 ° C | 27.7 ° C | % 73 | 13.3 km/h | 85% |
| 15 August 2025 Fri | Partly Cloudy |
24.3 ° C | 33 ° C | 28.8 ° C | % 60 | 9 km/h | 0% |
| 16 August 2025 Sat | Partly Cloudy |
22.8 ° C | 32.3 ° C | 26.8 ° C | % 70 | 9.4 km/h | 0% |
| 17 August 2025 Sun | Sunny |
20.9 ° C | 33.7 ° C | 25.6 ° C | % 73 | 11.2 km/h | 0% |
| 18 August 2025 Mon | Sunny |
22 ° C | 36 ° C | 27.7 ° C | % 65 | 8.3 km/h | 0% |
| 19 August 2025 Tue | Patchy rain nearby |
20.3 ° C | 35.8 ° C | 26.9 ° C | % 71 | 16.2 km/h | 82% |
| 20 August 2025 Wed | Sunny |
17.6 ° C | 26.7 ° C | 21.5 ° C | % 60 | 16.6 km/h | 0% |
| 21 August 2025 Thu | Partly Cloudy |
14.3 ° C | 24.5 ° C | 19 ° C | % 57 | 9.7 km/h | 0% |
| 22 August 2025 Fri | Sunny |
15.3 ° C | 26.8 ° C | 21 ° C | % 64 | 14.8 km/h | 0% |
| 23 August 2025 Sat | Patchy rain nearby |
18.5 ° C | 23.6 ° C | 21 ° C | % 86 | 15.5 km/h | 83% |
| 24 August 2025 Sun | Patchy rain nearby |
20.2 ° C | 30.2 ° C | 23.9 ° C | % 73 | 12.6 km/h | 81% |
| 25 August 2025 Mon | Sunny |
15.3 ° C | 26.5 ° C | 20.3 ° C | % 55 | 12.6 km/h | 0% |
| 26 August 2025 Tue | Sunny |
15 ° C | 29 ° C | 21.6 ° C | % 54 | 8.3 km/h | 0% |
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