Chantilly, VA Hourly Weather

Fairfax County1:48 PM EDT38.89°N, 77.43°WElevation 322 ft

Next 48 hours

1 PM 4 PM 7 PM 10 PM Wed Oct 21 1 AM 4 AM 7 AM 10 AM 1 PM 4 PM 7 PM 10 PM Thu Oct 22 1 AM 4 AM 7 AM 10 AM 40° 45° 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Tuesday, October 2011 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
1 PM Sunny 62° 62° 0% 0.00 in N 10 G18 56% 46° 3% 4
2 PM Sunny 65° 65° 0% 0.00 in N 10 G17 50% 46° 3% 4
3 PM Sunny 66° 66° 0% 0.00 in N 9 G17 48% 46° 2% 3
4 PM Sunny 68° 68° 0% 0.00 in N 9 G17 45% 46° 1% 1
5 PM Sunny 66° 66° 0% 0.00 in N 9 G16 50% 47° 2% 0
6 PM Clear 65° 65° 0% 0.00 in N 8 G15 52% 47° 1% 0
7 PM Clear 62° 62° 0% 0.00 in N 8 G15 56% 46° 1% 0
8 PM Clear 59° 59° 0% 0.00 in N 7 G14 69% 49° 3% 0
9 PM Clear 57° 57° 0% 0.00 in N 7 G14 75% 49° 2% 0
10 PM Clear 56° 56° 0% 0.00 in N 7 G13 74% 48° 2% 0
11 PM Clear 55° 55° 0% 0.00 in N 6 G13 77% 48° 2% 0
Wednesday, October 2124 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 53° 53° 0% 0.00 in N 6 G13 83% 48° 2% 0
1 AM Clear 51° 51° 0% 0.00 in N 6 G13 86% 47° 1% 0
2 AM Clear 50° 48° 0% 0.00 in N 6 G13 86% 46° 2% 0
3 AM Clear 49° 47° 0% 0.00 in N 6 G13 86% 45° 1% 0
4 AM Clear 48° 45° 0% 0.00 in N 6 G13 89% 45° 3% 0
5 AM Clear 47° 44° 0% 0.00 in N 6 G13 89% 44° 4% 0
6 AM Sunny 46° 43° 0% 0.00 in N 6 G13 89% 43° 4% 0
7 AM Sunny 45° 41° 0% 0.00 in N 7 G13 93% 43° 14% 0
8 AM Sunny 46° 42° 0% 0.00 in N 7 G13 86% 42° 15% 0
9 AM Sunny 49° 46° 0% 0.00 in N 7 80% 43° 5% 1
10 AM Sunny 53° 53° 0% 0.00 in N 7 G13 71% 44° 9% 2
11 AM Sunny 57° 57° 0% 0.00 in N 7 G13 62% 44° 14% 3
12 PM Sunny 60° 60° 0% 0.00 in N 7 G13 53% 43° 6% 4
1 PM Sunny 61° 61° 0% 0.00 in N 8 G14 51% 43° 11% 5
2 PM Sunny 63° 63° 0% 0.00 in N 8 G15 48% 43° 12% 4
3 PM Sunny 63° 63° 0% 0.00 in N 8 G15 46% 42° 3% 3
4 PM Sunny 64° 64° 0% 0.00 in N 8 G15 45% 42° 1% 1
5 PM Sunny 62° 62° 0% 0.00 in N 8 G14 50% 43° 3% 0
6 PM Clear 59° 59° 0% 0.00 in N 6 55% 43° 4% 0
7 PM Clear 56° 56° 0% 0.00 in N 5 62% 43° 3% 0
8 PM Mostly Clear 53° 53° 0% 0.00 in N 5 74% 45° 7% 0
9 PM Mostly Clear 51° 51° 0% 0.00 in N 3 83% 46° 9% 0
10 PM Mostly Clear 49° 48° 0% 0.00 in N 3 93% 47° 7% 0
11 PM Clear 48° 47° 0% 0.00 in N 3 100% 48° 5% 0
Thursday, October 2224 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 47° 46° 0% 0.00 in N 3 G8 100% 47° 5% 0
1 AM Mostly Clear 46° 44° 0% 0.00 in NW 5 100% 46° 6% 0
2 AM Mostly Clear 46° 44° 0% 0.00 in NW 5 96% 45° 6% 0
3 AM Mostly Clear 45° 43° 0% 0.00 in NW 5 96% 44° 8% 0
4 AM Mostly Clear 45° 42° 0% 0.00 in NW 6 96% 44° 11% 0
5 AM Mostly Clear 44° 41° 0% 0.00 in NW 6 96% 43° 13% 0
6 AM Sunny 43° 39° 0% 0.00 in NW 7 96% 42° 12% 0
7 AM Sunny 43° 39° 0% 0.00 in NW 7 G14 93% 41° 10% 0
8 AM Sunny 44° 39° 0% 0.00 in NW 8 G15 89% 41° 9% 0
9 AM Sunny 48° 44° 0% 0.00 in NW 9 G16 80% 42° 7% 1
10 AM Sunny 53° 53° 0% 0.00 in NW 9 G17 69% 43° 5% 2
11 AM Sunny 57° 57° 0% 0.00 in NW 10 G18 62% 44° 3% 3
12 PM Sunny 60° 60° 0% 0.00 in NW 10 G20 55% 44° 3% 4
1 PM Sunny 62° 62° 0% 0.00 in N 10 G20 50% 43° 3% 4
2 PM Sunny 64° 64° 0% 0.00 in N 10 G20 46% 43° 3% 4
3 PM Sunny 65° 65° 0% 0.00 in N 9 G20 46% 44° 3% 3
4 PM Sunny 65° 65° 0% 0.00 in N 9 G18 48% 45° 3% 1
5 PM Sunny 64° 64° 0% 0.00 in N 8 G17 52% 46° 3% 0
6 PM Clear 62° 62° 0% 0.00 in N 7 G16 58% 47° 3% 0
7 PM Clear 59° 59° 0% 0.00 in N 7 G14 69% 49° 4% 0
8 PM Clear 57° 57° 0% 0.00 in N 6 G13 77% 50° 4% 0
9 PM Clear 56° 56° 0% 0.00 in N 6 G13 83% 51° 5% 0
10 PM Clear 55° 55° 0% 0.00 in N 6 G13 86% 51° 5% 0
11 PM Mostly Clear 54° 54° 0% 0.00 in N 6 G13 90% 51° 6% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 53° 53° 0% 0.00 in N 7 G14 93% 51° 7% 0
1 AM Mostly Clear 52° 52° 0% 0.00 in N 7 G15 93% 50° 7% 0
2 AM Mostly Clear 51° 51° 0% 0.00 in N 8 G16 93% 49° 8% 0
3 AM Mostly Clear 50° 47° 0% 0.00 in N 8 G16 93% 48° 10% –
4 AM Mostly Clear 49° 46° 0% 0.00 in N 8 G15 96% 48° 11% –
5 AM Mostly Clear 48° 44° 0% 0.00 in N 8 G15 96% 47° 13% –
6 AM Sunny 47° 43° 0% 0.00 in N 8 G15 96% 46° 11% –
7 AM Sunny 46° 42° 0% 0.00 in N 8 G15 96% 45° 10% –
8 AM Sunny 46° 42° 0% – N 8 G15 93% 44° 8% –
9 AM Sunny 48° 44° 0% – N 8 G15 83% 43° 6% –
10 AM Sunny 50° 46° 0% – N 9 G16 74% 42° 5% –
11 AM Sunny 52° 52° 0% – N 9 G16 66% 41° 3% –
12 PM Sunny 54° 54° 0% – N 9 G16 59% 40° 2% –
1 PM Sunny 56° 56° 0% – N 9 G15 53% 39° 2% –
2 PM Sunny 57° 57° 0% – N 8 G14 51% 39° 1% –
3 PM Sunny 58° 58° 0% – N 7 G13 49% 39° 1% –
4 PM Sunny 58° 58° 0% – N 7 G13 49% 39° 2% –
5 PM Sunny 57° 57° 0% – N 6 G12 51% 39° 2% –
6 PM Clear 55° 55° 0% – NE 5 G10 57% 40° 2% –
7 PM Clear 52° 52° 0% – NE 5 69% 42° 3% –
8 PM Clear 48° 47° 0% – NE 3 83% 43° 3% –
9 PM Clear 47° 46° 0% – NE 3 86% 43° 3% –
10 PM Clear 46° 46° 0% – NE 2 89% 43° 3% –
11 PM Clear 45° 45° 0% – NE 2 93% 43° 3% –
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 44° 44° 0% – NE 2 93% 42° 3% –
1 AM Clear 44° 44° 0% – NE 2 93% 42° 3% –
2 AM Clear 43° 43° 0% – N 2 93% 41° 3% –
3 AM Clear 42° 42° 0% – N 2 96% 41° 3% –
4 AM Clear 42° 40° 0% – N 3 96% 41° 3% –
5 AM Clear 41° 39° 0% – N 3 G8 100% 41° 3% –
6 AM Sunny 40° 38° 0% – N 3 G9 100% 40° 3% –
7 AM Sunny 39° 36° 0% – N 5 100% 39° 3% –
8 AM Sunny 40° 37° 0% – N 5 100% 40° 4% –
9 AM Sunny 43° 40° 0% – N 5 93% 41° 4% –
10 AM Sunny 47° 46° 0% – NE 3 G8 86% 43° 4% –
11 AM Sunny 51° 51° 0% – NE 3 77% 44° 4% –
12 PM Sunny 54° 54° 0% – NE 3 69% 44° 4% –
1 PM Sunny 56° 56° 0% – NE 5 62% 43° 4% –
2 PM Sunny 57° 57° 0% – E 5 57% 42° 3% –
3 PM Sunny 58° 58° 0% – E 5 55% 42° 3% –
4 PM Sunny 59° 59° 0% – E 3 G8 51% 41° 3% –
5 PM Sunny 58° 58° 0% – E 3 55% 42° 3% –
6 PM Clear 56° 56° 0% – E 3 64% 44° 3% –
7 PM Clear 54° 54° 0% – E 2 74% 46° 3% –
8 PM Mostly Clear 51° 51° 0% – E 2 86% 47° 6% –
9 PM Mostly Clear 49° 49° 0% – E 2 93% 47° 6% –
10 PM Mostly Clear 47° 47° 0% – E 1 96% 46° 6% –
11 PM Mostly Clear 45° 45° 0% – E 1 100% 45° 6% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 44° 44° 0% – NE 1 100% 44° 6% –
1 AM Mostly Clear 43° 43° 0% – N 1 100% 43° 6% –
2 AM Mostly Clear 43° 43° 0% – NW 1 100% 43° 11% –
3 AM Mostly Clear 42° 42° 0% – NW 1 100% 42° 11% –
4 AM Mostly Clear 42° 42° 0% – NW 1 100% 42° 11% –
5 AM Mostly Clear 41° 41° 0% – NW 1 100% 41° 11% –
6 AM Sunny 40° 40° 0% – NW 1 100% 40° 11% –
7 AM Sunny 39° 39° 0% – N 2 100% 39° 11% –
8 AM Sunny 40° 40° 0% – N 2 100% 40° 19% –
9 AM Sunny 43° 43° 0% – NW 2 96% 42° 19% –
10 AM Sunny 47° 47° 0% – NW 2 89% 44° 19% –
11 AM Sunny 52° 52° 0% – NW 2 80% 46° 19% –
12 PM Sunny 56° 56° 0% – W 2 69% 46° 19% –
1 PM Sunny 59° 59° 0% – SW 3 62% 46° 19% –
2 PM Sunny 62° 62° 0% – SW 3 56% 46° 11% –
3 PM Sunny 63° 63° 0% – SW 3 54% 46° 11% –
4 PM Sunny 64° 64° 0% – S 2 52% 46° 11% –
5 PM Sunny 63° 63° 0% – S 2 54% 46° 11% –
6 PM Mostly Clear 61° 61° 0% – S 2 60% 47° 11% –
7 PM Mostly Clear 59° 59° 0% – S 2 69% 49° 11% –
8 PM Mostly Clear 56° 56° 0% – S 2 80% 50° 19% –
9 PM Mostly Clear 54° 54° 0% – S 2 86% 50° 19% –
10 PM Mostly Clear 52° 52° 0% – S 1 93% 50° 19% –
11 PM Mostly Clear 50° 50° 0% – S 1 96% 49° 19% –
Monday, October 2620 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 48° 48° 0% – SW 1 100% 48° 19% –
1 AM Mostly Clear 47° 47° 0% – SW 1 100% 47° 19% –
2 AM Partly Cloudy 46° 46° 0% – SW 1 100% 46° 30% –
3 AM Partly Cloudy 45° 45° 0% – SW 1 100% 45° 30% –
4 AM Partly Cloudy 44° 44° 0% – SW 2 100% 44° 30% –
5 AM Partly Cloudy 43° 43° 0% – SW 2 100% 43° 30% –
6 AM Mostly Sunny 42° 42° 0% – SW 2 100% 42° 30% –
7 AM Mostly Sunny 41° 41° 0% – W 2 100% 41° 30% –
8 AM Mostly Sunny 42° 42° 1% – W 2 100% 42° 40% –
9 AM Mostly Sunny 45° 45° 1% – W 2 96% 44° 40% –
10 AM Mostly Sunny 50° 49° 1% – W 3 89% 47° 40% –
11 AM Mostly Sunny 55° 55° 1% – W 3 80% 49° 40% –
12 PM Mostly Sunny 60° 60° 1% – W 3 67% 49° 40% –
1 PM Mostly Sunny 64° 64° 1% – W 3 G8 58% 49° 40% –
2 PM Mostly Sunny 67° 67° 0% – W 3 G8 52% 49° 31% –
3 PM Mostly Sunny 69° 69° 0% – W 3 G8 49% 49° 31% –
4 PM Mostly Sunny 69° 69° 0% – W 3 49% 49° 31% –
5 PM Mostly Sunny 68° 68° 0% – W 3 52% 50° 31% –
6 PM Partly Cloudy 66° 66° 0% – W 3 58% 51° 31% –
7 PM Partly Cloudy 63° 63° 0% – W 3 67% 52° 31% –

National Weather Service forecast updated 5 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 4Conservative index and reflects what the press published. Terms of use.