Washington Dulles International Airport Weather Forecast
Washington Dulles International Airport weather: 65°F, clear. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Summary
Washington Dulles International Airport is an airport in Virginia. Washington Dulles International Airport (IAD) is a commercial airport.
Right now it is 65°F (18°C) in Washington Dulles International Airport with clear. It feels like 65°F. Today runs from 65°F to 84°F. Chance of precipitation is 74%. Sightseeing conditions score 7.9/10 - good conditions.
The best time to visit Washington Dulles International Airport is April, June, August and October. The climate is continental. January, February and December tend to be the least comfortable months. July is the warmest month with average highs near 90°F, while January is the coldest with lows near 25°F.
The closest major airport is Ronald Reagan Washington National Airport (DCA), about 23 mi away. Nearby highlights include National Mall, Shenandoah National Park, New River Gorge National Park and Statue of Liberty (UNESCO World Heritage Site).
In plain terms. Today is about average for August. The forecast high of 84°F is in line with the 85°F typical for this month. The best window to be outside is roughly 8 AM to 11 AM, when temperature, rain chance and wind line up best. fishing is the strongest bet in Washington Dulles International Airport today at 8.6/10. Wet roads are likely; braking distances roughly double in heavy rain.
Compiled from this page's own data: atlas facts plus live Open-Meteo readings.
Weather in Washington Dulles International Airport right now
Source: Open-Meteo. Updated 1:57 PM, Aug 24 local time.
Next 24 hours
Hour-by-hour temperature, precipitation chance and wind.
16-day forecast for Washington Dulles International Airport
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sun, Aug 23 | 🌦️ Light drizzle | 84° / 65° | 74% · 0,0 in | 11 mph | 7 |
| Mon, Aug 24 | 🌤️ Mainly clear | 82° / 59° | 0% | 10 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 83° / 57° | 0% | 7 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 87° / 62° | 8% | 9 mph | 7 |
| Thu, Aug 27 | 🌦️ Light showers | 82° / 68° | 55% · 0,1 in | 12 mph | 5 |
| Fri, Aug 28 | 🌦️ Light drizzle | 91° / 67° | 33% · 0,0 in | 6 mph | 7 |
| Sat, Aug 29 | ☁️ Overcast | 90° / 68° | 13% | 6 mph | 7 |
| Sun, Aug 30 | 🌦️ Drizzle | 91° / 68° | 15% · 0,1 in | 9 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 80° / 68° | 14% · 0,1 in | 6 mph | 4 |
| Tue, Sep 1 | ☁️ Overcast | 85° / 63° | 24% | 8 mph | 7 |
| Wed, Sep 2 | 🌦️ Light rain | 68° / 56° | 31% · 0,6 in | 7 mph | 2 |
| Thu, Sep 3 | 🌦️ Light drizzle | 77° / 56° | 25% · 0,0 in | 10 mph | 7 |
| Fri, Sep 4 | ☁️ Overcast | 81° / 59° | 29% | 6 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 85° / 62° | 30% · 0,0 in | 8 mph | 7 |
| Sun, Sep 6 | 🌦️ Light showers | 74° / 61° | 20% · 0,3 in | 6 mph | 4 |
| Mon, Sep 7 | 🌦️ Drizzle | 76° / 61° | 23% · 0,2 in | 9 mph | 4 |
Climate in Washington Dulles International Airport month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 39° | 25° | 3,5 in | ★★☆☆☆ |
| February | 45° | 28° | 2,4 in | ★★★☆☆ |
| March | 61° | 39° | 3,6 in | ★★★☆☆ |
| April | 70° | 49° | 2,6 in | ★★★★☆ |
| May | 74° | 57° | 5,8 in | ★★★★☆ |
| June | 87° | 66° | 3,8 in | ★★★★☆ |
| July | 90° | 71° | 5,0 in | ★★★★☆ |
| August | 85° | 67° | 3,2 in | ★★★★☆ |
| September | 79° | 61° | 4,6 in | ★★★★☆ |
| October | 69° | 49° | 1,2 in | ★★★★☆ |
| November | 57° | 40° | 2,0 in | ★★★☆☆ |
| December | 46° | 31° | 3,9 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
Weather map for Washington Dulles International Airport
Animated model layers. Pick a layer to load it.
Animated layers by Windy. For pin-level detail and nearby places, see the interactive map below.
Air quality and pollen in Washington Dulles International Airport
Air quality: Open-Meteo (CAMS). US AQI scale.
Sun, twilight and moon
Golden and blue hour are the standard photographic approximation around sunrise and sunset.
Best time to visit Washington Dulles International Airport
Go in April, June, August and October. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: January, February and December - expect the least comfortable mix of heat, cold or rain.
Explore Washington Dulles International Airport
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
Frequently asked questions
Where is Washington Dulles International Airport?
Washington Dulles International Airport is an airport in Virginia. Its coordinates are 38.9531, -77.4565. It lies in North America.
What is the weather like in Washington Dulles International Airport right now?
It is currently 65°F (18°C) with clear. Humidity is 66% and wind is 4 mph.
When is the best time to visit Washington Dulles International Airport?
April, June, August and October offer the most comfortable conditions in Washington Dulles International Airport, which has a continental climate. January, February and December are usually the hardest months for outdoor plans.
What time zone is Washington Dulles International Airport in?
Washington Dulles International Airport observes America/New_York (UTC-04:00). The local time is 1:57 PM.
What is the nearest airport to Washington Dulles International Airport?
The closest airports are Ronald Reagan Washington National Airport (DCA), 23 mi away, Philadelphia International Airport (PHL), 134 mi away and Newark Liberty International Airport (EWR), 211 mi away.
What are the top things to do in Washington Dulles International Airport?
Popular options include National Mall, Shenandoah National Park, New River Gorge National Park, Statue of Liberty (UNESCO World Heritage Site), Statue of Liberty and Hudson River.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (airports) - coordinates, hierarchy and facts. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated August 24, 2026 at 1:57 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
