Chantilly, VA 20151 Hourly Weather

Fairfax County12:24 PM EDT38.89°N, 77.45°W

Next 48 hours

12 PM 3 PM 6 PM 9 PM Sun Oct 25 12 AM 3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM Mon Oct 26 12 AM 3 AM 6 AM 9 AM 35° 40° 45° 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Saturday, October 2412 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 PM Sunny 56° 56° 0% 0.00 in E 3 55% 40° 13% 4
1 PM Sunny 59° 59° 0% 0.00 in E 3 45% 38° 20% 4
2 PM Sunny 61° 61° 0% 0.00 in E 3 39% 36° 19% 3
3 PM Sunny 62° 62° 0% 0.00 in E 3 36% 35° 19% 2
4 PM Sunny 63° 63° 0% 0.00 in E 3 35% 35° 12% 1
5 PM Sunny 61° 61° 0% 0.00 in E 5 39% 36° 15% 0
6 PM Mostly Clear 59° 59° 0% 0.00 in E 3 45% 38° 15% 0
7 PM Mostly Clear 54° 54° 0% 0.00 in E 3 57% 39° 10% 0
8 PM Mostly Clear 50° 49° 0% 0.00 in E 3 71% 41° 6% 0
9 PM Clear 47° 47° 0% 0.00 in E 2 79% 41° 1% 0
10 PM Clear 44° 44° 0% 0.00 in E 1 93% 42° 2% 0
11 PM Mostly Clear 43° 43° 0% 0.00 in Calm 96% 42° 8% 0
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 42° 42° 0% 0.00 in Calm 96% 41° 2% 0
1 AM Clear 42° 42° 0% 0.00 in Calm 96% 41° 1% 0
2 AM Clear 40° 40° 0% 0.00 in Calm 100% 40° 0% 0
3 AM Clear 40° 40° 0% 0.00 in Calm 100% 40° 2% 0
4 AM Mostly Clear 39° 39° 0% 0.00 in Calm 100% 39° 8% 0
5 AM Mostly Clear 38° 38° 0% 0.00 in Calm 100% 38° 12% 0
6 AM Patchy Frost 37° 37° 0% 0.00 in Calm 100% 37° 22% 0
7 AM Patchy Frost 37° 37° 0% 0.00 in N 1 100% 37° 28% 0
8 AM Patchy Frost 36° 36° 0% 0.00 in N 1 100% 36° 26% 0
9 AM Sunny 40° 40° 0% 0.00 in N 1 100% 40° 25% 1
10 AM Sunny 47° 47° 0% 0.00 in N 1 83% 42° 24% 2
11 AM Sunny 53° 53° 0% 0.00 in NE 1 74% 45° 14% 3
12 PM Sunny 58° 58° 0% 0.00 in NE 1 59% 44° 3% 4
1 PM Sunny 61° 61° 0% 0.00 in SE 1 53% 44° 4% 4
2 PM Sunny 63° 63° 0% 0.00 in S 1 48% 43° 4% 3
3 PM Sunny 65° 65° 0% 0.00 in S 1 43% 42° 4% 2
4 PM Sunny 66° 66° 0% 0.00 in S 1 43% 43° 5% 1
5 PM Sunny 64° 64° 0% 0.00 in S 1 46% 43° 5% 0
6 PM Clear 61° 61° 0% 0.00 in S 1 53% 44° 4% 0
7 PM Clear 56° 56° 0% 0.00 in SE 1 66% 45° 4% 0
8 PM Clear 51° 51° 0% 0.00 in SE 1 83% 46° 3% 0
9 PM Clear 48° 48° 0% 0.00 in SE 1 93% 46° 3% 0
10 PM Clear 46° 46° 0% 0.00 in Calm 96% 45° 2% 0
11 PM Clear 44° 44° 0% 0.00 in Calm 100% 44° 2% 0
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 43° 43° 0% 0.00 in Calm 100% 43° 2% 0
1 AM Clear 42° 42° 0% 0.00 in Calm 100% 42° 3% 0
2 AM Clear 41° 41° 0% 0.00 in Calm 100% 41° 3% 0
3 AM Mostly Clear 40° 40° 0% 0.00 in Calm 100% 40° 7% 0
4 AM Mostly Clear 39° 39° 0% 0.00 in W 1 100% 39° 11% 0
5 AM Mostly Clear 39° 39° 0% 0.00 in W 1 100% 39° 15% 0
6 AM Patchy Frost 37° 37° 0% 0.00 in W 1 100% 37° 15% 0
7 AM Patchy Frost 36° 36° 0% 0.00 in W 1 100% 36° 15% 0
8 AM Patchy Frost 37° 37° 0% 0.00 in NW 1 100% 37° 15% 0
9 AM Sunny 42° 42° 0% 0.00 in NW 1 96% 41° 11% 1
10 AM Sunny 49° 49° 0% 0.00 in NW 2 83% 44° 6% 2
11 AM Sunny 55° 55° 0% 0.00 in NW 2 72% 46° 2% 3
12 PM Sunny 60° 60° 0% 0.00 in NW 2 60% 46° 2% 4
1 PM Sunny 64° 64° 0% 0.00 in NW 3 52% 46° 1% 4
2 PM Sunny 66° 66° 0% 0.00 in NW 3 G8 48% 46° 1% 4
3 PM Sunny 68° 68° 0% 0.00 in NW 3 45% 46° 1% –
4 PM Sunny 69° 69° 0% 0.00 in NW 2 44% 46° 2% –
5 PM Sunny 68° 68° 0% 0.00 in NW 2 47% 47° 2% –
6 PM Clear 65° 65° 0% 0.00 in NW 2 54% 48° 3% –
7 PM Clear 61° 61° 0% 0.00 in NW 1 65% 49° 3% –
8 PM Clear 59° 59° 0% – W 1 72% 50° 4% –
9 PM Clear 56° 56° 0% – W 1 80% 50° 4% –
10 PM Clear 53° 53° 0% – W 2 86% 49° 4% –
11 PM Clear 51° 51° 0% – W 2 93% 49° 4% –
Tuesday, October 2724 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 50° 50° 0% – NW 2 96% 49° 4% –
1 AM Clear 49° 48° 0% – NW 3 96% 48° 4% –
2 AM Mostly Clear 49° 48° 0% – NW 3 96% 48° 10% –
3 AM Mostly Clear 49° 47° 0% – NW 5 96% 48° 10% –
4 AM Mostly Clear 49° 47° 0% – NW 5 96% 48° 10% –
5 AM Mostly Clear 49° 47° 0% – NW 6 96% 48° 10% –
6 AM Sunny 48° 45° 0% – N 6 G12 100% 48° 10% –
7 AM Sunny 47° 44° 0% – N 6 G12 100% 47° 10% –
8 AM Sunny 48° 45° 0% – N 6 G12 100% 48° 16% –
9 AM Sunny 51° 51° 0% – N 6 G12 93% 49° 16% –
10 AM Sunny 56° 56° 0% – N 6 G12 80% 50° 16% –
11 AM Sunny 60° 60° 0% – N 6 G12 72% 51° 16% –
12 PM Sunny 63° 63° 0% – N 6 65% 51° 16% –
1 PM Sunny 65° 65° 0% – N 5 G10 58% 50° 16% –
2 PM Sunny 67° 67° 0% – N 5 54% 50° 15% –
3 PM Sunny 68° 68° 0% – N 5 52% 50° 15% –
4 PM Sunny 69° 69° 0% – N 3 G8 51% 50° 15% –
5 PM Sunny 68° 68° 0% – N 3 G8 52% 50° 15% –
6 PM Mostly Clear 65° 65° 0% – NE 3 G8 58% 50° 15% –
7 PM Mostly Clear 62° 62° 0% – NE 3 65% 50° 15% –
8 PM Partly Cloudy 58° 58° 0% – NE 3 75% 50° 27% –
9 PM Partly Cloudy 55° 55° 0% – NE 2 83% 50° 27% –
10 PM Partly Cloudy 53° 53° 0% – NE 2 86% 49° 27% –
11 PM Partly Cloudy 51° 51° 0% – NE 1 93% 49° 27% –
Wednesday, October 2824 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 50° 50° 0% – NE 1 96% 49° 27% –
1 AM Partly Cloudy 49° 49° 0% – E 1 96% 48° 27% –
2 AM Mostly Cloudy 49° 49° 0% – E 1 96% 48° 58% –
3 AM Mostly Cloudy 49° 49° 0% – E 1 96% 48° 58% –
4 AM Mostly Cloudy 48° 48° 0% – NE 2 96% 47° 58% –
5 AM Mostly Cloudy 48° 48° 0% – NE 2 96% 47° 58% –
6 AM Partly Sunny 47° 47° 0% – NE 2 100% 47° 58% –
7 AM Partly Sunny 46° 46° 0% – E 2 100% 46° 58% –
8 AM Mostly Cloudy 47° 47° 1% – E 2 100% 47° 70% –
9 AM Mostly Cloudy 50° 49° 1% – E 3 93% 48° 70% –
10 AM Mostly Cloudy 54° 54° 1% – E 3 86% 50° 70% –
11 AM Mostly Cloudy 58° 58° 1% – E 5 77% 51° 70% –
12 PM Mostly Cloudy 61° 61° 1% – SE 5 70% 51° 70% –
1 PM Mostly Cloudy 63° 63° 1% – SE 5 65% 51° 70% –
2 PM Partly Sunny 64° 64° 0% – SE 5 63% 51° 69% –
3 PM Partly Sunny 65° 65° 0% – SE 5 60% 51° 69% –
4 PM Partly Sunny 66° 66° 0% – SE 5 G10 58% 51° 69% –
5 PM Partly Sunny 65° 65° 0% – SE 5 G10 60% 51° 69% –
6 PM Mostly Cloudy 63° 63° 0% – SE 5 G10 65% 51° 69% –
7 PM Mostly Cloudy 61° 61° 0% – SE 5 72% 52° 69% –
8 PM Mostly Cloudy 58° 58° 0% – SE 5 80% 52° 71% –
9 PM Mostly Cloudy 56° 56° 0% – SE 5 86% 52° 71% –
10 PM Mostly Cloudy 54° 54° 0% – SE 3 93% 52° 71% –
11 PM Mostly Cloudy 52° 52° 0% – SE 3 100% 52° 71% –
Thursday, October 2924 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Cloudy 51° 51° 0% – SE 3 100% 51° 71% –
1 AM Mostly Cloudy 51° 51° 0% – SE 2 100% 51° 71% –
2 AM Mostly Cloudy 51° 51° 2% – SE 2 100% 51° 60% –
3 AM Mostly Cloudy 51° 51° 2% – SE 2 100% 51° 60% –
4 AM Mostly Cloudy 50° 50° 2% – SE 1 100% 50° 60% –
5 AM Mostly Cloudy 50° 50° 2% – S 1 100% 50° 60% –
6 AM Partly Sunny 49° 49° 2% – S 1 100% 49° 60% –
7 AM Partly Sunny 49° 49° 2% – S 1 100% 49° 60% –
8 AM Partly Sunny 50° 50° 2% – S 1 100% 50° 61% –
9 AM Partly Sunny 53° 53° 2% – S 2 96% 52° 61% –
10 AM Partly Sunny 57° 57° 2% – S 2 86% 53° 61% –
11 AM Partly Sunny 61° 61° 2% – S 3 G8 81% 55° 61% –
12 PM Partly Sunny 64° 64° 2% – S 5 73% 55° 61% –
1 PM Partly Sunny 66° 66° 2% – S 5 G10 68% 55° 61% –
2 PM Mostly Sunny 68° 68° 1% – S 6 63% 55° 44% –
3 PM Mostly Sunny 69° 69° 1% – S 6 61% 55° 44% –
4 PM Mostly Sunny 70° 70° 1% – S 6 59% 55° 44% –
5 PM Mostly Sunny 69° 69° 1% – S 6 61% 55° 44% –
6 PM Partly Cloudy 67° 67° 1% – S 6 65% 55° 44% –
7 PM Partly Cloudy 64° 64° 1% – S 5 75% 56° 44% –
8 PM Partly Cloudy 61° 61° 3% – S 5 84% 56° 30% –
9 PM Partly Cloudy 59° 59° 3% – S 3 90% 56° 30% –
10 PM Partly Cloudy 56° 56° 3% – S 3 100% 56° 30% –
11 PM Partly Cloudy 55° 55° 3% – S 2 100% 55° 30% –
Friday, October 3011 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Partly Cloudy 54° 54° 3% – S 2 100% 54° 30% –
1 AM Partly Cloudy 54° 54° 3% – SW 2 100% 54° 30% –
2 AM Partly Cloudy 54° 54° 2% – SW 2 96% 53° 35% –
3 AM Partly Cloudy 53° 53° 2% – SW 2 100% 53° 35% –
4 AM Partly Cloudy 53° 53° 2% – W 2 96% 52° 35% –
5 AM Partly Cloudy 52° 52° 2% – W 2 100% 52° 35% –
6 AM Mostly Sunny 51° 51° 2% – W 2 100% 51° 35% –
7 AM Mostly Sunny 50° 50° 2% – W 2 100% 50° 35% –
8 AM Mostly Sunny 51° 51° 1% – NW 2 100% 51° 43% –
9 AM Mostly Sunny 54° 54° 1% – NW 3 93% 52° 43% –
10 AM Mostly Sunny 58° 58° 1% – W 3 86% 54° 43% –

National Weather Service forecast updated 13 hrs ago. Precipitation amounts are the forecast liquid equivalent for each hour.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Search index and reflects what the press published. Terms of use.