Chantilly, VA Hourly Weather

Fairfax County6:45 PM EDT38.89°N, 77.43°WElevation 322 ft

Next 48 hours

6 PM 9 PM Thu Oct 22 12 AM 3 AM 6 AM 9 AM 12 PM 3 PM 6 PM 9 PM Fri Oct 23 12 AM 3 AM 6 AM 9 AM 12 PM 3 PM 35° 40° 45° 50° 55° 60° 65° %
TemperatureFeels likeChance of precipitationNight
Wednesday, October 216 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
6 PM Mostly Clear 60° 60° 0% 0.00 in N 7 G13 47% 40° 7% 0
7 PM Clear 56° 56° 0% 0.00 in N 6 55% 40° 1% 0
8 PM Clear 52° 52° 0% 0.00 in N 5 63% 40° 5% 0
9 PM Mostly Clear 50° 48° 0% 0.00 in N 5 71% 41° 7% 0
10 PM Mostly Clear 48° 46° 0% 0.00 in N 5 83% 43° 13% 0
11 PM Mostly Clear 47° 45° 0% 0.00 in N 5 89% 44° 13% 0
Thursday, October 2224 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 46° 44° 0% 0.00 in N 5 89% 43° 9% 0
1 AM Clear 45° 43° 0% 0.00 in N 5 G10 89% 42° 5% 0
2 AM Mostly Clear 44° 41° 0% 0.00 in N 5 G10 89% 41° 8% 0
3 AM Mostly Clear 44° 41° 0% 0.00 in N 5 G12 89% 41° 8% 0
4 AM Clear 43° 39° 0% 0.00 in N 6 G12 89% 40° 4% 0
5 AM Clear 42° 38° 0% 0.00 in N 6 G13 89% 39° 5% 0
6 AM Sunny 42° 38° 0% 0.00 in N 7 G14 86% 38° 5% 0
7 AM Sunny 42° 38° 0% 0.00 in NW 7 G14 82% 37° 4% 0
8 AM Sunny 42° 37° 0% 0.00 in NW 8 G15 79% 36° 4% 0
9 AM Sunny 46° 41° 0% 0.00 in NW 9 G16 68% 36° 2% 1
10 AM Sunny 52° 52° 0% 0.00 in N 9 G17 52% 35° 1% 2
11 AM Sunny 57° 57° 0% 0.00 in N 10 G18 42% 34° 3% 3
12 PM Sunny 59° 59° 0% 0.00 in N 10 G20 39% 34° 2% 4
1 PM Sunny 62° 62° 0% 0.00 in N 10 G20 36% 35° 3% 5
2 PM Sunny 64° 64° 0% 0.00 in N 10 G20 35% 36° 2% 4
3 PM Sunny 65° 65° 0% 0.00 in N 10 G20 34% 36° 3% 3
4 PM Sunny 65° 65° 0% 0.00 in N 10 G20 37% 38° 1% 1
5 PM Sunny 64° 64° 0% 0.00 in N 9 G18 41% 40° 3% 0
6 PM Clear 62° 62° 0% 0.00 in N 8 G16 46% 41° 2% 0
7 PM Clear 59° 59° 0% 0.00 in N 7 G14 53% 42° 0% 0
8 PM Clear 54° 54° 0% 0.00 in N 6 G13 66% 43° 2% 0
9 PM Clear 53° 53° 0% 0.00 in N 6 G13 71% 44° 0% 0
10 PM Clear 52° 52° 0% 0.00 in N 6 G13 77% 45° 1% 0
11 PM Clear 51° 51° 0% 0.00 in N 6 G13 83% 46° 2% 0
Friday, October 2324 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Clear 50° 48° 0% 0.00 in N 6 G14 86% 46° 3% 0
1 AM Clear 49° 46° 0% 0.00 in N 7 G14 89% 46° 5% 0
2 AM Mostly Clear 48° 45° 0% 0.00 in N 7 G15 93% 46° 6% 0
3 AM Mostly Clear 47° 44° 0% 0.00 in N 7 G15 96% 46° 6% 0
4 AM Mostly Clear 46° 42° 0% 0.00 in N 8 G15 96% 45° 7% 0
5 AM Mostly Clear 45° 41° 0% 0.00 in N 8 G15 100% 45° 7% 0
6 AM Sunny 44° 39° 0% 0.00 in N 8 G15 100% 44° 6% 0
7 AM Sunny 43° 39° 0% 0.00 in N 7 G14 100% 43° 4% 0
8 AM Sunny 43° 39° 0% 0.00 in N 7 G14 100% 43° 3% 0
9 AM Sunny 46° 42° 0% 0.00 in N 7 G14 89% 43° 3% 1
10 AM Sunny 50° 47° 0% 0.00 in N 8 G14 74% 42° 3% 2
11 AM Sunny 54° 54° 0% 0.00 in N 8 G14 61% 41° 3% 3
12 PM Sunny 56° 56° 0% 0.00 in N 8 55% 40° 3% 4
1 PM Sunny 58° 58° 0% 0.00 in NE 8 47% 38° 4% 4
2 PM Sunny 59° 59° 0% 0.00 in NE 7 44% 37° 4% 4
3 PM Sunny 60° 60° 0% 0.00 in NE 6 41% 36° 5% –
4 PM Sunny 60° 60° 0% 0.00 in NE 6 42% 37° 6% –
5 PM Sunny 58° 58° 0% 0.00 in NE 5 45% 37° 7% –
6 PM Mostly Clear 55° 55° 0% 0.00 in NE 5 53% 38° 8% –
7 PM Mostly Clear 51° 51° 0% 0.00 in NE 3 61% 38° 10% –
8 PM Mostly Clear 48° 47° 0% 0.00 in NE 3 71% 39° 11% –
9 PM Mostly Clear 46° 46° 0% 0.00 in NE 2 79% 40° 10% –
10 PM Mostly Clear 45° 45° 0% 0.00 in NE 2 82% 40° 8% –
11 PM Mostly Clear 44° 44° 0% 0.00 in NE 1 86% 40° 7% –
Saturday, October 2424 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 43° 43° 0% 0.00 in Calm 89% 40° 6% –
1 AM Mostly Clear 42° 42° 0% 0.00 in Calm 89% 39° 6% –
2 AM Clear 41° 41° 0% 0.00 in Calm 92% 39° 5% –
3 AM Mostly Clear 40° 40° 0% 0.00 in Calm 96% 39° 6% –
4 AM Mostly Clear 39° 39° 0% 0.00 in N 1 96% 38° 7% –
5 AM Mostly Clear 38° 38° 0% 0.00 in N 1 100% 38° 8% –
6 AM Sunny 37° 37° 0% 0.00 in N 1 100% 37° 7% –
7 AM Sunny 36° 36° 0% 0.00 in N 2 100% 36° 7% –
8 AM Sunny 37° 37° 0% – N 2 100% 37° 6% –
9 AM Sunny 42° 42° 0% – N 2 86% 38° 5% –
10 AM Sunny 48° 48° 0% – NE 2 71% 39° 4% –
11 AM Sunny 53° 53° 0% – E 2 61% 40° 3% –
12 PM Sunny 56° 56° 0% – E 2 55% 40° 4% –
1 PM Sunny 58° 58° 0% – E 2 49% 39° 4% –
2 PM Sunny 59° 59° 0% – SE 2 45% 38° 5% –
3 PM Sunny 60° 60° 0% – SE 2 44% 38° 8% –
4 PM Sunny 60° 60° 0% – E 2 46% 39° 11% –
5 PM Sunny 59° 59° 0% – E 2 49% 40° 14% –
6 PM Mostly Clear 56° 56° 0% – E 2 57% 41° 14% –
7 PM Mostly Clear 52° 52° 0% – E 1 69% 42° 14% –
8 PM Mostly Clear 51° 51° 0% – E 1 74% 43° 14% –
9 PM Mostly Clear 49° 49° 0% – E 1 83% 44° 14% –
10 PM Mostly Clear 47° 47° 0% – Calm 89% 44° 14% –
11 PM Mostly Clear 45° 45° 0% – Calm 96% 44° 14% –
Sunday, October 2524 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 44° 44° 0% – Calm 100% 44° 14% –
1 AM Mostly Clear 43° 43° 0% – Calm 100% 43° 14% –
2 AM Clear 42° 42° 0% – Calm 100% 42° 5% –
3 AM Clear 42° 42° 0% – Calm 100% 42° 5% –
4 AM Clear 41° 41° 0% – Calm 100% 41° 5% –
5 AM Clear 41° 41° 0% – Calm 100% 41° 5% –
6 AM Sunny 40° 40° 0% – Calm 100% 40° 5% –
7 AM Sunny 39° 39° 0% – NW 1 100% 39° 5% –
8 AM Sunny 40° 40° 0% – NW 1 100% 40° 14% –
9 AM Sunny 44° 44° 0% – N 1 93% 42° 14% –
10 AM Sunny 50° 50° 0% – E 1 77% 43° 14% –
11 AM Sunny 55° 55° 0% – SE 1 69% 45° 14% –
12 PM Sunny 58° 58° 0% – SE 1 62% 45° 14% –
1 PM Sunny 61° 61° 0% – S 2 56% 45° 14% –
2 PM Sunny 62° 62° 0% – S 2 52% 44° 3% –
3 PM Sunny 63° 63° 0% – S 2 50% 44° 3% –
4 PM Sunny 64° 64° 0% – S 2 48% 44° 3% –
5 PM Sunny 63° 63° 0% – S 2 52% 45° 3% –
6 PM Clear 61° 61° 0% – S 2 58% 46° 3% –
7 PM Clear 57° 57° 0% – SE 1 67% 46° 3% –
8 PM Mostly Clear 54° 54° 0% – SE 1 77% 47° 8% –
9 PM Mostly Clear 52° 52° 0% – SE 1 86% 48° 8% –
10 PM Mostly Clear 50° 50° 0% – Calm 93% 48° 8% –
11 PM Mostly Clear 48° 48° 0% – Calm 100% 48° 8% –
Monday, October 2624 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 47° 47° 0% – Calm 100% 47° 8% –
1 AM Mostly Clear 46° 46° 0% – SW 1 100% 46° 8% –
2 AM Mostly Clear 45° 45° 0% – SW 1 100% 45° 8% –
3 AM Mostly Clear 44° 44° 0% – W 1 100% 44° 8% –
4 AM Mostly Clear 43° 43° 0% – W 1 100% 43° 8% –
5 AM Mostly Clear 43° 43° 0% – W 1 100% 43° 8% –
6 AM Sunny 42° 42° 0% – W 1 100% 42° 8% –
7 AM Sunny 42° 42° 0% – W 1 100% 42° 8% –
8 AM Sunny 43° 43° 0% – W 1 96% 42° 17% –
9 AM Sunny 46° 46° 0% – W 1 89% 43° 17% –
10 AM Sunny 51° 51° 0% – W 2 80% 45° 17% –
11 AM Sunny 56° 56° 0% – W 2 72% 47° 17% –
12 PM Sunny 60° 60° 0% – W 2 62% 47° 17% –
1 PM Sunny 64° 64° 0% – W 3 54% 47° 17% –
2 PM Sunny 66° 66° 0% – W 3 50% 47° 11% –
3 PM Sunny 68° 68° 0% – W 3 49% 48° 11% –
4 PM Sunny 68° 68° 0% – W 2 49% 48° 11% –
5 PM Sunny 67° 67° 0% – W 2 52% 49° 11% –
6 PM Mostly Clear 65° 65° 0% – W 2 56% 49° 11% –
7 PM Mostly Clear 61° 61° 0% – SW 1 67% 50° 11% –
8 PM Mostly Clear 58° 58° 0% – SW 1 75% 50° 21% –
9 PM Mostly Clear 56° 56° 0% – SW 1 80% 50° 21% –
10 PM Mostly Clear 54° 54° 0% – W 1 86% 50° 21% –
11 PM Mostly Clear 52° 52° 0% – W 1 93% 50° 21% –
Tuesday, October 2714 hours
Time Conditions Temp Feels Precip Amount Wind Humidity Dew point Clouds UV
12 AM Mostly Clear 51° 51° 0% – W 1 93% 49° 21% –
1 AM Mostly Clear 50° 50° 0% – W 2 96% 49° 21% –
2 AM Partly Cloudy 50° 50° 0% – W 2 93% 48° 28% –
3 AM Partly Cloudy 49° 49° 0% – W 2 96% 48° 28% –
4 AM Partly Cloudy 49° 48° 0% – NW 3 93% 47° 28% –
5 AM Partly Cloudy 48° 47° 0% – NW 3 G8 96% 47° 28% –
6 AM Mostly Sunny 47° 45° 0% – NW 5 96% 46° 28% –
7 AM Mostly Sunny 47° 45° 0% – NW 5 G10 96% 46° 28% –
8 AM Mostly Sunny 48° 45° 0% – NW 6 G12 93% 46° 33% –
9 AM Mostly Sunny 51° 51° 0% – NW 6 G12 86% 47° 33% –
10 AM Mostly Sunny 55° 55° 0% – N 6 77% 48° 33% –
11 AM Mostly Sunny 59° 59° 0% – N 6 69% 49° 33% –
12 PM Mostly Sunny 62° 62° 0% – N 6 65% 50° 33% –
1 PM Mostly Sunny 64° 64° 0% – N 6 G12 60% 50° 33% –

National Weather Service forecast updated 16 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.