Washington D.C.

Washington D.C. Weather Forecast – Complete Guide to Weather Conditions in United States

Welcome to the most comprehensive Washington D.C. weather forecast resource available online. Whether you’re a local resident planning your week, a traveler preparing for a visit, or simply curious about weather conditions in United States, this page provides everything you need to know about the weather in Washington D.C.. Our data is updated every 15 minutes from multiple meteorological sources, ensuring you always have access to the most accurate and current information.

Current Weather Conditions in Washington D.C.

The real-time weather display above shows the current conditions in Washington D.C., including the actual temperature, how it feels (accounting for humidity and wind), current weather conditions, and atmospheric details. The beautiful Samsung Weather-inspired design makes checking the weather an enjoyable experience while providing all the essential data at a glance.

Our current weather monitoring includes temperature readings, relative humidity levels, wind speed and direction, atmospheric pressure, cloud cover percentage, and visibility distance. This comprehensive data helps you make informed decisions about outdoor activities, commuting, and daily planning.

Washington D.C. Hourly Weather Forecast

Planning your day hour by hour? The hourly forecast for Washington D.C. shows predicted conditions for the next 24-48 hours. The interactive temperature graph visualizes how conditions will change throughout the day, while precipitation probability percentages help you decide whether to carry an umbrella.

Each hour displays the expected temperature, weather conditions represented by intuitive icons, and the likelihood of precipitation. This granular data is particularly valuable for scheduling outdoor events, planning commutes, or simply deciding the best time for a walk in the park.

Washington D.C. 16-Day Extended Weather Forecast

Need to plan further ahead? Our extended Washington D.C. 16-day forecast provides a comprehensive outlook for over two weeks. Each day shows the expected high and low temperatures, daytime and nighttime weather conditions, precipitation probability, and general weather patterns.

Based on the current 16-day outlook, Washington D.C. is expected to experience average high temperatures around 3°C and average lows near -4°C. Total precipitation over this period is forecasted to be approximately 16.1mm.

This extended forecast is invaluable for travel planning, event scheduling, agricultural purposes, construction projects, and any activities that require advance weather knowledge. Our predictive models are updated multiple times daily to maintain accuracy even for dates further out.

Air Quality Index (AQI) in Washington D.C.

Monitoring air quality is crucial for protecting your health, especially for sensitive groups. Our Washington D.C. air quality monitoring tracks several key pollutants in real-time:

• PM2.5 (Fine Particulate Matter) – Microscopic particles that can penetrate deep into lungs and enter the bloodstream, particularly dangerous for respiratory and cardiovascular health
• PM10 (Coarse Particulate Matter) – Larger particles from dust, pollen, and mold that can irritate airways and trigger allergies
• Ozone (O₃) – Ground-level ozone that can cause breathing difficulties, particularly during warm, sunny conditions
• Nitrogen Dioxide (NO₂) – A traffic-related pollutant that indicates overall air pollution levels in urban areas
• Carbon Monoxide (CO) – A colorless, odorless gas produced by incomplete combustion
• Sulfur Dioxide (SO₂) – An industrial pollutant that can affect respiratory health

The US Air Quality Index (AQI) scale ranges from 0 to 500, divided into six categories: Good (0-50), Moderate (51-100), Unhealthy for Sensitive Groups (101-150), Unhealthy (151-200), Very Unhealthy (201-300), and Hazardous (301-500). Each level comes with specific activity recommendations to protect your health.

UV Index and Sun Protection in Washington D.C.

The Washington D.C. UV index measures the strength of ultraviolet radiation from the sun. Understanding UV levels is essential for preventing sunburn, premature skin aging, and reducing skin cancer risk. Our UV monitoring provides:

• Low (1-2) – Minimal protection needed for most people
• Moderate (3-5) – Sunscreen and sunglasses recommended, seek shade during midday hours
• High (6-7) – Protection essential, reduce sun exposure between 10am and 4pm
• Very High (8-10) – Extra precautions needed, minimize midday sun exposure
• Extreme (11+) – Maximum protection required, avoid being outside during midday

Over the next 16 days, the maximum UV index in Washington D.C. is expected to reach 4, so plan your sun protection accordingly.

Geographic Information for Washington D.C.

Washington D.C. is located in United States at geographic coordinates 38.9072° N, 77.0369° W. The city sits at an elevation of approximately 25 meters above sea level, which influences local weather patterns and temperatures.

The geographic position of Washington D.C. significantly influences its climate patterns. The latitude affects the amount and angle of solar radiation received throughout the year, determining seasonal variations in temperature and daylight hours. The longitude determines the local timezone and influences weather systems approaching from different directions.

Sunrise, Sunset, and Daylight Hours in Washington D.C.

Understanding daylight patterns is valuable for planning outdoor activities, photography, and understanding natural light availability. Our weather display shows daily sunrise and sunset times for Washington D.C., along with total daylight duration. These times change throughout the year due to Earth’s axial tilt and the city’s latitude.

Best Time to Visit Washington D.C.

Planning a trip to Washington D.C.? Consider these factors when choosing your travel dates:

• Temperature preferences – Review our seasonal temperature patterns to find weather that suits your comfort level
• Precipitation patterns – Check historical rainfall data for your intended travel period to pack appropriately
• Special events and festivals – Weather can significantly affect outdoor events and celebrations
• Outdoor activities – Plan hiking, sightseeing, beach visits, or sporting activities around favorable weather forecasts
• Photography conditions – Golden hour times and cloud patterns affect natural lighting for photography

Weather Data Sources and Accuracy

This Washington D.C. weather page aggregates data from multiple reliable meteorological sources to ensure maximum accuracy:

• Open-Meteo – High-resolution weather forecasting API with global coverage and multiple weather models
• Open-Meteo Air Quality – Real-time pollution monitoring using satellite data and ground station measurements
• Open-Meteo Marine – Ocean and coastal weather data for marine conditions
• RainViewer – Live precipitation radar imagery showing real-time rainfall patterns
• Elevation API – Precise altitude data for accurate temperature adjustments

All data is refreshed every 15 minutes to ensure you always have access to current conditions. Our weather models combine multiple forecasting systems to improve prediction accuracy, especially for extended forecasts.

Weather Map and Radar for Washington D.C.

The interactive weather map above shows Washington D.C.’s location with real-time precipitation radar overlay. This allows you to track approaching weather systems, observe rainfall intensity, and monitor storm movements in your area. The radar imagery is updated frequently to provide near real-time weather visualization.

Weather Alerts and Notifications

Stay informed about significant weather changes in Washington D.C.. Our system monitors for conditions that may require attention, including approaching precipitation, significant temperature changes, high UV levels, and air quality concerns. When conditions warrant, alert cards appear on the weather display to keep you informed.

Frequently Asked Questions About Washington D.C. Weather

What is the weather like in Washington D.C. today?
Check the current conditions displayed at the top of this page for real-time temperature, humidity, wind, and weather conditions in Washington D.C.. Data is updated every 15 minutes.

What is the 7-day forecast for Washington D.C.?
Our 7-day forecast section shows daily high and low temperatures, precipitation probability, and day/night weather conditions. We also provide an extended 16-day outlook for longer-term planning.

Is the air quality good in Washington D.C.?
Check our Air Quality Index (AQI) section for current pollution levels and health recommendations. We track PM2.5, PM10, ozone, nitrogen dioxide, and other pollutants.

What is the UV index in Washington D.C.?
The UV index is displayed in our weather details section, along with sun protection recommendations based on current levels.

When is sunrise and sunset in Washington D.C.?
Sunrise, sunset, and total daylight hours are shown in the astronomical section of our weather display, updated daily.

How accurate is the Washington D.C. weather forecast?
Our forecasts use multiple meteorological models and are updated every 15 minutes. Short-term forecasts (1-3 days) are highly accurate, while extended forecasts (7-16 days) provide general trends with decreasing certainty.

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Save this page for instant access to Washington D.C. weather information whenever you need it. Our responsive design works perfectly on desktop computers, tablets, and smartphones, allowing you to check the weather from any device.

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