What is the weather in Chantilly right now?

Current weather in Chantilly is scattered clouds.

Where can I find the hourly weather forecast for Chantilly?

This page shows hourly weather forecast for Chantilly, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Chantilly updated regularly?

Weather data for Chantilly is updated regularly with the latest available observations and forecasts.

Now · 9:23 AM

Chantilly Weather & Hourly Forecast

United States · Virginia · 20151

74°F

Partly cloudy

Feels like: 75°F

💧 Humidity 80% 🌡 Pressure 30.00 inHg 💨 Wind 5 mph 👁 Visibility 6.2 mi ☁ Clouds 32% ☀️ UV index 5.0 · Moderate 🌅 Sunrise 6:35 AM 🌇 Sunset 7:47 PM

Hourly Forecast for Chantilly

Today

10:00 AM

Partly cloudy

74° 💧 None 💨 5 mph H 80%30.00 inHg

1:00 PM

Partly cloudy

80° 💧 None 💨 7 mph H 60%30.00 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 4 mph H 54%30.00 inHg

7:00 PM

Overcast

84° 💧 None 💨 5 mph H 62%30.00 inHg

10:00 PM

Clear night

76° 💧 None 💨 3 mph H 74%30.09 inHg

Tomorrow

1:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 73%30.12 inHg

4:00 AM

Mostly cloudy night

72° 💧 None 💨 6 mph H 76%30.15 inHg

7:00 AM

Partly cloudy

70° 💧 None 💨 5 mph H 84%30.18 inHg

10:00 AM

Partly cloudy

75° 💧 None 💨 4 mph H 59%30.21 inHg

1:00 PM

Mostly sunny

81° 💧 None 💨 4 mph H 46%30.18 inHg

4:00 PM

Sunny

87° 💧 None 💨 4 mph H 44%30.12 inHg

7:00 PM

Partly cloudy

82° 💧 None 💨 8 mph H 61%30.12 inHg

10:00 PM

Clear night

76° 💧 None 💨 6 mph H 75%30.15 inHg

Sunday

1:00 AM

Mostly clear night

73° 💧 None 💨 5 mph H 92%30.18 inHg

4:00 AM

Partly cloudy night

69° 💧 0.03 in 💨 5 mph H 96%30.15 inHg

7:00 AM

Light rain

68° 💧 0.04 in 💨 4 mph H 98%30.15 inHg

Today

10:00 AM

Partly cloudy

74° 💧 None 💨 5 mph H 80%30.00 inHg

11:00 AM

Partly cloudy

76° 💧 None 💨 6 mph H 75%30.00 inHg

12:00 PM

Partly cloudy

78° 💧 None 💨 7 mph H 68%30.03 inHg

1:00 PM

Partly cloudy

80° 💧 None 💨 7 mph H 60%30.00 inHg

2:00 PM

Mostly sunny

83° 💧 None 💨 6 mph H 50%30.00 inHg

3:00 PM

Mostly cloudy

85° 💧 None 💨 5 mph H 42%30.00 inHg

4:00 PM

Mostly cloudy

85° 💧 None 💨 4 mph H 54%30.00 inHg

5:00 PM

Overcast

84° 💧 None 💨 7 mph H 56%30.00 inHg

6:00 PM

Overcast

83° 💧 None 💨 5 mph H 59%30.00 inHg

7:00 PM

Overcast

84° 💧 None 💨 5 mph H 62%30.00 inHg

8:00 PM

Mostly cloudy night

81° 💧 None 💨 4 mph H 67%30.03 inHg

9:00 PM

Clear night

77° 💧 None 💨 3 mph H 70%30.06 inHg

10:00 PM

Clear night

76° 💧 None 💨 3 mph H 74%30.09 inHg

11:00 PM

Clear night

75° 💧 None 💨 4 mph H 75%30.09 inHg

Tomorrow

12:00 AM

Clear night

74° 💧 None 💨 5 mph H 75%30.12 inHg

1:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 73%30.12 inHg

2:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 71%30.12 inHg

3:00 AM

Overcast night

73° 💧 None 💨 6 mph H 72%30.12 inHg

4:00 AM

Mostly cloudy night

72° 💧 None 💨 6 mph H 76%30.15 inHg

5:00 AM

Mostly cloudy night

70° 💧 None 💨 5 mph H 82%30.15 inHg

6:00 AM

Partly cloudy night

70° 💧 None 💨 5 mph H 85%30.18 inHg

7:00 AM

Partly cloudy

70° 💧 None 💨 5 mph H 84%30.18 inHg

8:00 AM

Partly cloudy

71° 💧 None 💨 5 mph H 76%30.21 inHg

9:00 AM

Mostly cloudy

73° 💧 None 💨 4 mph H 67%30.21 inHg

10:00 AM

Partly cloudy

75° 💧 None 💨 4 mph H 59%30.21 inHg

11:00 AM

Partly cloudy

77° 💧 None 💨 4 mph H 53%30.21 inHg

12:00 PM

Mostly sunny

79° 💧 None 💨 3 mph H 49%30.21 inHg

1:00 PM

Mostly sunny

81° 💧 None 💨 4 mph H 46%30.18 inHg

2:00 PM

Sunny

81° 💧 None 💨 5 mph H 45%30.15 inHg

3:00 PM

Sunny

83° 💧 None 💨 5 mph H 44%30.15 inHg

4:00 PM

Sunny

87° 💧 None 💨 4 mph H 44%30.12 inHg

5:00 PM

Mostly sunny

86° 💧 None 💨 6 mph H 45%30.12 inHg

6:00 PM

Partly cloudy

84° 💧 None 💨 7 mph H 56%30.12 inHg

7:00 PM

Partly cloudy

82° 💧 None 💨 8 mph H 61%30.12 inHg

8:00 PM

Partly cloudy night

80° 💧 None 💨 6 mph H 68%30.15 inHg

9:00 PM

Clear night

77° 💧 None 💨 7 mph H 72%30.15 inHg

10:00 PM

Clear night

76° 💧 None 💨 6 mph H 75%30.15 inHg

11:00 PM

Mostly clear night

75° 💧 None 💨 6 mph H 79%30.15 inHg

Sunday

12:00 AM

Mostly clear night

74° 💧 None 💨 5 mph H 87%30.15 inHg

1:00 AM

Mostly clear night

73° 💧 None 💨 5 mph H 92%30.18 inHg

2:00 AM

Partly cloudy night

72° 💧 None 💨 6 mph H 95%30.15 inHg

3:00 AM

Mostly clear night

69° 💧 None 💨 5 mph H 96%30.15 inHg

4:00 AM

Partly cloudy night

69° 💧 None 💨 5 mph H 96%30.15 inHg

5:00 AM

Light rain

68° 💧 0.01 in 💨 5 mph H 97%30.15 inHg

6:00 AM

Light rain

68° 💧 0.02 in 💨 5 mph H 97%30.15 inHg

7:00 AM

Light rain

68° 💧 0.01 in 💨 4 mph H 98%30.15 inHg

8:00 AM

Light rain

70° 💧 0.02 in 💨 5 mph H 95%30.18 inHg

9:00 AM

Light rain

72° 💧 0.01 in 💨 5 mph H 90%30.18 inHg

10:00 AM

Overcast

76° 💧 None 💨 7 mph H 81%30.15 inHg

11:00 AM

Overcast

81° 💧 None 💨 8 mph H 68%30.15 inHg

12:00 PM

Overcast

86° 💧 None 💨 9 mph H 54%30.12 inHg

1:00 PM

Overcast

89° 💧 None 💨 9 mph H 46%30.12 inHg

2:00 PM

Mostly cloudy

91° 💧 None 💨 9 mph H 42%30.09 inHg

3:00 PM

Mostly sunny

92° 💧 None 💨 7 mph H 39%30.06 inHg

4:00 PM

Partly cloudy

93° 💧 None 💨 7 mph H 37%30.03 inHg

5:00 PM

Partly cloudy

93° 💧 None 💨 7 mph H 37%30.00 inHg

6:00 PM

Partly cloudy

90° 💧 None 💨 4 mph H 45%30.00 inHg

7:00 PM

Mostly cloudy

85° 💧 None 💨 5 mph H 50%30.00 inHg

8:00 PM

Mostly cloudy night

83° 💧 None 💨 7 mph H 54%30.00 inHg

9:00 PM

Overcast night

82° 💧 None 💨 8 mph H 55%30.03 inHg

10:00 PM

Overcast night

81° 💧 None 💨 7 mph H 57%30.03 inHg

11:00 PM

Mostly cloudy night

77° 💧 None 💨 4 mph H 68%30.03 inHg

Monday

12:00 AM

Mostly cloudy night

75° 💧 None 💨 4 mph H 73%30.03 inHg

1:00 AM

Mostly cloudy night

75° 💧 None 💨 5 mph H 75%30.03 inHg

2:00 AM

Mostly cloudy night

74° 💧 None 💨 4 mph H 77%30.03 inHg

3:00 AM

Mostly cloudy night

73° 💧 None 💨 4 mph H 76%30.03 inHg

4:00 AM

Mostly cloudy night

74° 💧 None 💨 4 mph H 72%30.03 inHg

5:00 AM

Mostly cloudy night

73° 💧 None 💨 5 mph H 76%30.03 inHg

6:00 AM

Mostly cloudy night

71° 💧 None 💨 4 mph H 81%30.03 inHg

7:00 AM

Mostly cloudy

73° 💧 None 💨 4 mph H 77%30.03 inHg

8:00 AM

Mostly cloudy

73° 💧 None 💨 4 mph H 76%30.09 inHg

9:00 AM

Overcast

75° 💧 None 💨 5 mph H 73%30.09 inHg

10:00 AM

Overcast

74° 💧 None 💨 5 mph H 73%30.09 inHg

11:00 AM

Overcast

79° 💧 None 💨 3 mph H 62%30.09 inHg

12:00 PM

Overcast

86° 💧 None 💨 3 mph H 51%30.09 inHg

1:00 PM

Mostly cloudy

90° 💧 None 💨 2 mph H 44%30.09 inHg

2:00 PM

Mostly cloudy

92° 💧 None 💨 1 mph H 43%30.06 inHg

3:00 PM

Partly cloudy

93° 💧 None 💨 1 mph H 41%30.03 inHg

4:00 PM

Mostly cloudy

91° 💧 None 💨 2 mph H 42%30.03 inHg

5:00 PM

Mostly cloudy

90° 💧 None 💨 4 mph H 44%30.00 inHg

6:00 PM

Mostly cloudy

87° 💧 None 💨 4 mph H 51%30.03 inHg

7:00 PM

Mostly cloudy

84° 💧 None 💨 3 mph H 57%30.00 inHg

8:00 PM

Overcast night

82° 💧 None 💨 3 mph H 59%30.00 inHg

9:00 PM

Overcast night

80° 💧 None 💨 4 mph H 61%30.03 inHg

10:00 PM

Overcast night

79° 💧 None 💨 3 mph H 64%30.03 inHg

11:00 PM

Overcast night

79° 💧 None 💨 3 mph H 68%30.03 inHg

Tuesday

12:00 AM

Overcast night

78° 💧 None 💨 2 mph H 71%30.03 inHg

1:00 AM

Overcast night

77° 💧 None 💨 3 mph H 73%30.06 inHg

2:00 AM

Light rain

76° 💧 0.00 in 💨 3 mph H 79%30.03 inHg

3:00 AM

Overcast night

75° 💧 None 💨 4 mph H 84%30.03 inHg

4:00 AM

Overcast night

74° 💧 None 💨 3 mph H 86%30.03 inHg

5:00 AM

Overcast night

73° 💧 None 💨 0 mph H 90%30.03 inHg

6:00 AM

Overcast night

74° 💧 None 💨 1 mph H 89%30.03 inHg

7:00 AM

Overcast

73° 💧 None 💨 0 mph H 90%30.03 inHg

8:00 AM

Light rain

74° 💧 0.00 in 💨 2 mph H 88%30.06 inHg

9:00 AM

Light rain

78° 💧 0.01 in 💨 2 mph H 80%30.06 inHg

In Chantilly and, more broadly, across the state of Virginia: This morning will begin with a mix of sun and clouds, accompanied by mild temperatures around 67 degrees. As the day progresses into the afternoon, temperatures are expected to warm up to the low 80s, creating a comfortable but slightly warmer atmosphere. There is a chance of light rain in the afternoon, with an estimated accumulation of about 0.02 inches, and the probability of rain reaching up to 55%. Winds will remain light from the east at around 5 mph, with occasional gusts up to 7 mph. Overall, expect a mild start to the day with a slight chance of rain later on, so carrying an umbrella might be a good idea for the afternoon plans.

15-Day Weather Outlook for Chantilly

TomorrowTomorrow

Mostly sunny 87°/70° 💧 None 💨 8 mph

Sunday, Aug 30Sun Aug 30

Light rain 93°/68° 💧 0.07 in 💨 9 mph

Monday, Aug 31Mon Aug 31

Mostly cloudy 92°/71° 💧 None 💨 5 mph

Tuesday, Sep 1Tue Sep 1

Light rain 91°/73° 💧 0.02 in 💨 6 mph

Wednesday, Sep 2Wed Sep 2

Light rain 102°/75° 💧 0.02 in 💨 6 mph

Thursday, Sep 3Thu Sep 3

Sunny 101°/78° 💧 None 💨 11 mph

Friday, Sep 4Fri Sep 4

Light rain 99°/75° 💧 0.05 in 💨 13 mph

Saturday, Sep 5Sat Sep 5

Light rain 86°/67° 💧 0.14 in 💨 6 mph

Sunday, Sep 6Sun Sep 6

Mostly sunny 86°/66° 💧 None 💨 7 mph

Monday, Sep 7Mon Sep 7

Moderate rain 75°/66° 💧 0.47 in 💨 6 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 84°/60° 💧 None 💨 7 mph

Wednesday, Sep 9Wed Sep 9

Sunny 84°/64° 💧 None 💨 8 mph

Thursday, Sep 10Thu Sep 10

Overcast 77°/61° 💧 None 💨 10 mph

Friday, Sep 11Fri Sep 11

Light rain 67°/58° 💧 0.01 in 💨 6 mph

Saturday, Sep 12Sat Sep 12

Overcast 79°/55° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Chantilly

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Chantilly

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 10:00 AM

PM2.5 Fine particles Good 3,4µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 4,3µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 16,3µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,3µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Chantilly

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 7,0High 😊Good

Tomorrow UV 7,0High 🙂Fair

Sunday UV 8,0Very high 🙂Fair

Monday UV 9,0Very high 🙂Fair

Tuesday UV 9,0Very high 😊Good

Wednesday UV 9,0Very high —Unavailable

Thursday UV 9,0Very high —Unavailable

Hourly UV index today

10:00 AMUV 5,0 11:00 AMUV 6,0 12:00 PMUV 6,0 1:00 PMUV 6,0 2:00 PMUV 6,0 3:00 PMUV 7,0 4:00 PMUV 6,0 5:00 PMUV 6,0 6:00 PMUV 6,0 7:00 PMUV 6,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Chantilly

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.51 Population: 24,036

DISCOVER WEATHER NEARBY Weather in other cities

Explore current conditions and forecasts for other locations.

Forecast data for Chantilly were last refreshed today at 9:23 AM. The current forecast period extends through 30/08/2026 at 7:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.