Preview of NWS' New Version of Forecast
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Latest weather observations around

Washington/Dulles International Airport, DC (KIAD)

Using English Units (Switch to International System of Units)
Date/ Time (EDT) Wind (mph) Vis. (mi) Weather Sky Cond. Temp (°F) Rel. Humidity Wind Chill (°F) Heat Index (°F) Pressure Precip. (in)
Air Dwpt 6 hour Altimeter (inHg) Sea level (inHg) 1 hr 3 hr 6 hr
Max Min
Aug 19 07:52 NNE 3 10 Mostly Cloudy FEW014 FEW055 BKN100 BKN220 75 67     76%   76 30.01 30      
Aug 19 06:52 NNW 3 10 Mostly Cloudy FEW050 SCT090 BKN250 71 66     84%   72 30 29.99      
Aug 19 05:52 Calm 10 Mostly Cloudy BKN090 BKN250 71 66     84%   72 29.98 29.97      
Aug 19 04:52 Calm 10 Mostly Clear FEW250 70 67     90%     29.98 29.97      
Aug 19 03:52 Calm 10 Mostly Clear FEW250 72 66     82%   73 29.97 29.96      
Aug 19 02:52 WNW 3 10 Partly Cloudy SCT060 72 66     82%   73 29.97 29.96      
Aug 19 01:52 Calm 10 Partly Cloudy SCT060 SCT180 74 67     79%   75 29.98 29.97      
Aug 19 00:52 Calm 10 Mostly Cloudy FEW060 BKN180 BKN250 75 68     79%   76 29.99 29.98      
Aug 18 23:52 W 3 10 Mostly Cloudy FEW100 BKN150 BKN250 76 67     74%   77 29.99 29.98      
Aug 18 22:52 ESE 6 10 Mostly Cloudy FEW060 SCT100 BKN160 BKN250 78 67     69%   79 29.98 29.97      
Aug 18 21:52 NE 9 10 Mostly Cloudy SCT060 SCT110 BKN250 80 64     58%   82 29.99 29.98      
Aug 18 20:59 W 8 10 Partly Cloudy SCT045 SCT070 SCT120 85 68     57%   88 29.99        
Aug 18 20:52 W 9 10 Partly Cloudy FEW060 SCT080 SCT120 85 68     57%   88 29.99 29.97      
Aug 18 19:52 S 5 10 Partly Cloudy SCT055 SCT120 SCT250 86 70     59%   91 29.95 29.94     0
Aug 18 18:52 SSE 7 10 Partly Cloudy FEW045 SCT100 SCT250 88 68     52%   92 29.94 29.93 0    
Aug 18 17:52 S 13 10 Light Rain SCT060 SCT090 SCT130 90 69     50%   95 29.96 29.94 0    
Aug 18 16:52 6 10 Partly Cloudy SCT055 SCT085 SCT120 93 68     44%   97 29.96 29.95   0  
Aug 18 15:52 SE 7 10 Mostly Cloudy SCT045 BKN075 BKN250 90 70     52%   95 29.97 29.96 0    
Aug 18 14:52 ESE 9 10 Mostly Cloudy BKN055 BKN085 BKN110 91 69     49%   96 29.98 29.97      
Aug 18 13:52 5 10 Mostly Cloudy BKN050 BKN090 BKN250 93 70     47%   99 29.99 29.98      
Aug 18 13:07 Calm 10 Mostly Cloudy BKN046 BKN080 BKN250 90 70     52%   95 30.01        
Aug 18 12:52 SE 9 10 Mostly Cloudy BKN049 BKN080 BKN250 91 71     52%   98 30.01 29.99      
Aug 18 11:52 6 10 Partly Cloudy FEW045 SCT250 88 72     59%   95 30.02 30.01      
Aug 18 10:52 Calm 10 Partly Cloudy SCT250 87 71     59%   93 30.02 30.01      
Aug 18 09:52 NNW 3 10 Mostly Clear FEW250 84 72     67%   90 30.02 30      
Aug 18 08:52 Calm 10 Mostly Clear FEW250 79 72     79%   82 30.02 30      
Aug 18 07:52 Calm 10 Mostly Clear FEW250 76 71     85%   77 30.02 30.01      
Aug 18 06:52 Calm 7 Mostly Clear FEW190 FEW250 70 69     97%     30.01 30      
Aug 18 05:52 Calm 9 Mostly Clear FEW190 71 69     93%   72 29.99 29.98      
Aug 18 04:52 SSE 3 10 Mostly Clear FEW190 73 70     90%   74 29.97 29.96      
Aug 18 03:52 SSE 3 10 Mostly Clear FEW190 73 70     90%   74 29.97 29.96      
Aug 18 02:52 SSE 3 10 Mostly Cloudy SCT190 BKN250 74 70     87%   75 29.98 29.97      
Aug 18 01:52 Calm 10 Partly Cloudy SCT250 74 68     82%   75 29.97 29.96      
Aug 18 00:52 Calm 10 Mostly Clear FEW250 75 67     76%   76 29.97 29.96      
Aug 17 23:52 Calm 10 Mostly Clear FEW250 73 68     84%   74 29.98 29.96      
Aug 17 22:52 S 3 10 Partly Cloudy SCT250 74 68     82%   75 29.98 29.97      
Aug 17 21:52 Calm 10 Partly Cloudy SCT200 77 67     71%   78 29.99 29.97      
Aug 17 20:52 SSW 5 10 Partly Cloudy FEW047 SCT200 78 67     69%   79 29.97 29.96      
Aug 17 20:20 E 7 10 Partly Cloudy FEW015 SCT045 SCT080 81 65     58%   83 29.98        
Aug 17 19:52 ENE 9 10 Thunderstorms FEW045 SCT080 81 65     58%   83 29.98 29.97      
Aug 17 19:12 S 9 10 Thunderstorms FEW045 SCT080 86 71     61%   92 29.96        
Aug 17 18:52 S 8 10 Partly Cloudy FEW045 SCT080 88 70     55%   93 29.95 29.94      
Aug 17 17:52 S 7 10 Clear CLR 88 70     55%   93 29.94 29.93      
Aug 17 16:52 SSW 7 10 Partly Cloudy FEW048 SCT100 SCT200 92        %     29.94 29.93      
Aug 17 15:52 7 10 Mostly Cloudy BKN050 BKN200 92 66     43%   95 29.96 29.95      
Aug 17 14:52 WNW 6 10 Mostly Cloudy SCT045 BKN070 BKN095 BKN250 90 71     54%   96 29.98 29.97      
Aug 17 13:52 SW 6 10 Mostly Cloudy SCT041 BKN060 BKN250 88 69     54%   92 30 29.98      
Aug 17 12:52 WSW 6 10 Mostly Cloudy FEW040 SCT060 BKN090 BKN250 87 72     61%   94 30.01 29.99      
Aug 17 11:52 Calm 10 Mostly Cloudy BKN040 BKN100 BKN250 85 73     68%   92 30.02 30.01      
Aug 17 11:17 W 5 10 Mostly Cloudy SCT020 BKN030 82 73     74%   87 30.03        
Aug 17 10:52 Calm 10 Mostly Cloudy BKN015 BKN032 82 73     74%   87 30.02 30.01      
Aug 17 09:52 SE 3 8 Mostly Cloudy FEW010 BKN016 81 74     79%   86 30 29.99      
Aug 17 09:36 Calm 6 Fog/Mist FEW010 BKN015 80 73     79%   84 30.01        
Aug 17 08:52 Calm 2.5 Fog/Mist SCT004 OVC016 77 73     88%   79 30.01 30      
Aug 17 08:40 Calm 2.5 Fog/Mist SCT004 OVC014 76 73     91%   77 30.01        
Aug 17 07:52 Calm 1 Fog/Mist BKN004 OVC010 75 73     94%   77 30 29.98      
Aug 17 06:52 Calm 0.5 Fog/Mist OVC003 74 72     94%   75 29.99 29.98      
Aug 17 06:22 Calm 0.25 Fog VV002 73 71     94%   74 29.98        
Aug 17 06:10 Calm 0.5 Fog/Mist OVC002 73 72     96%   75 29.98        
Aug 17 05:52 Calm 0.5 Cloudy OVC002 73 71     94%   74 29.98 29.96      
Aug 17 04:56 Calm 0.5 Cloudy OVC003 71 69     93%   72 29.98        
Aug 17 04:52 Calm 1.5 Cloudy OVC003 71 69     93%   72 29.98 29.98      
Aug 17 03:52 Calm 7 Partly Cloudy FEW006 SCT012 SCT045 70 69     97%     29.99 29.97      
Aug 17 02:52 Calm 7 Mostly Clear FEW045 73 71     94%   74 29.99 29.98      
Aug 17 01:52 Calm 7 Mostly Clear FEW040 72 70     93%   73 29.99 29.98      
Aug 17 00:52 Calm 8 Mostly Clear FEW040 FEW250 73 71     94%   74 29.99 29.98      
Aug 16 23:52 Calm 10 Mostly Clear FEW100 FEW250 74 71     91%   75 29.99 29.98      
Aug 16 22:52 S 3 10 Mostly Clear FEW100 FEW250 76 72     88%   77 29.99 29.98      
Aug 16 21:52 SSE 3 10 Mostly Clear FEW100 79 72     79%   82 29.99 29.98      
Aug 16 20:52 SSE 5 10 Mostly Clear FEW040 FEW100 79 71     77%   82 29.97 29.96      
Aug 16 19:52 SSE 3 10 Partly Cloudy FEW040 SCT100 SCT200 82 69     65%   85 29.95 29.94      
Aug 16 18:52 S 7 10 Partly Cloudy SCT035 SCT070 85 70     61%   89 29.95 29.93      
Aug 16 17:52 E 5 10 Clear   85 70     61%   89 29.96 29.95      
Aug 16 16:52 SE 5 10 Mostly Cloudy SCT039 BKN050 85 69     59%   89 29.97 29.95      
Aug 16 15:52 S 6 10 Mostly Cloudy SCT043 BKN100 BKN200 88 70     55%   93 29.97 29.96      
Aug 16 14:52 W 3 10 Mostly Cloudy BKN030 BKN060 85 69     59%   89 29.99 29.98      
Aug 16 14:18 Calm 10 Mostly Cloudy BKN030 BKN060 84 69     61%   88 30        
Aug 16 13:52 5 10 Mostly Cloudy BKN025 BKN037 BKN060 85 70     61%   89 30.01 30      
Aug 16 12:52 Calm 10 Mostly Cloudy FEW010 BKN024 BKN035 82 70     67%   86 30.01 30      
Aug 16 11:54 Calm 10 Cloudy BKN019 OVC032 80 71     74%   84 30.02        
Aug 16 11:52 3 10 Cloudy BKN009 BKN016 OVC030 80 71     74%   84 30.02 30.01      
Aug 16 10:59 Calm 10 Cloudy BKN009 BKN016 OVC030 78 71     79%   79 30.03        
Aug 16 10:52 3 7 Cloudy BKN008 BKN015 OVC030 79 71     77%   82 30.03 30.02      
Aug 16 10:36 Calm 7 Cloudy SCT008 BKN016 OVC033 78 71     79%   79 30.02        
Aug 16 09:52 E 3 7 Cloudy BKN008 BKN016 OVC033 76 71     85%   77 30.02 30.01      
Aug 16 09:23 E 6 7 Cloudy BKN007 OVC017 75 71     88%   76 30.01        
Aug 16 08:52 SE 5 7 Patchy Fog FEW008 SCT014 OVC025 74 71     91%   75 30 29.99      
Aug 16 07:52 ESE 7 6 Patchy Fog FEW011 OVC019 73 70     90%   74 30.01 30      
Aug 16 06:52 ESE 6 6 Patchy Fog OVC019 72 70     93%   73 30 29.99      
Aug 16 05:52 Calm 8 Patchy Fog OVC017 73 70     90%   74 29.98 29.97      
Aug 16 04:52 E 3 7 Patchy Fog OVC016 72 70     93%   73 29.97 29.96      
Aug 16 03:52 Calm 7 Patchy Fog BKN016 BKN027 70 68     93%     29.97 29.96      
Aug 16 02:52 Calm 7 Patchy Fog FEW015 SCT045 72 70     93%   73 29.98 29.97      
Aug 16 02:38 Calm 6 Patchy Fog SCT015 BKN045 71 70     96%   72 29.98        
Aug 16 02:35 Calm 1.75 Fog/Mist SCT015 BKN045 71 70     96%   72 29.98        
Aug 16 01:52 ESE 3 10 Mostly Cloudy SCT015 BKN045 74 71     91%   75 29.98 29.97     0
May 14 20:27 SE 14 8 Light Rain BKN045 OVC085 66 65     96%     29.87   0    
May 14 12:06 Calm 7 Cloudy OVC010 69 65     87%     30.03        
May 14 11:52 3 6 Fog/Mist OVC009 68 65     90%     30.03 30.02 0    
May 14 06:52 Calm 0.5 Light Drizzle and Fog OVC002 61 61     100%     30 30 0    
May 13 13:19 S 3 10 Clear   71 66     84%   72 30.05        
May 12 02:52 S 5 10 Cloudy FEW065 OVC150 66 59     78%     30 29.99      
May 11 19:52 ENE 6 10 Mostly Clear FEW120 FEW250 75 58     55%   75 30.02 30.01      
May 11 08:52 NW 8 10 Mostly Clear FEW250 71 58     63%   71 30.03 30.02      
Notice The following observation data may not be complete
Jun 12 02:52   10 Clear CLR          %              
Notice The following observation data may not be complete
Jun 12 00:52   10 Mostly Clear FEW070          %              
Jun 11 21:52 S 5 10 Mostly Clear FEW080 79 63     58%   79          
Notice The following observation data may not be complete
Jun 11 15:52   10 Mostly Clear FEW070          %              
Jun 11 08:52 NW 3 10 Clear CLR 79 63     58%   79          
Jun 11 02:52 S 7 10 Clear CLR 69 61     75%     30.07 30.06      
Notice The following observation data may not be complete
Jun 10 21:52   10 Mostly Clear FEW250          %              
Jun 10 08:52 Calm 10 Partly Cloudy SCT130 SCT250 72 57     59%   72          
Jun 10 04:52 Calm 10 Mostly Clear FEW120 61 55     81%              
Jun 10 03:52 S 5 10 Mostly Clear FEW150 FEW250 63 55     75%              
Jun 09 17:52 W 10 10 Mostly Clear FEW065 80 50     35%   79          
Jun 09 05:52 Calm 10 Mostly Clear FEW120 53 50     89%              
Jun 09 00:52 Calm 10 Mostly Cloudy BKN130 BKN190 59 50     72%              
Notice The following observation data may not be complete
Jun 08 20:52   10 Partly Cloudy FEW060 FEW080 SCT250          %              
Notice The following observation data may not be complete
Jun 08 18:52   10 Partly Cloudy SCT065 SCT080 SCT250          %              
Notice The following observation data may not be complete
Jun 08 17:52   10 Partly Cloudy SCT070 SCT150 SCT250          %              
Notice The following observation data may not be complete
Jun 08 14:52   10 Mostly Cloudy SCT060 SCT150 BKN250          %              
Notice The following observation data may not be complete
Jun 08 11:52   10 Mostly Cloudy FEW040 SCT150 BKN250          %              
Notice The following observation data may not be complete
Jun 08 05:52   7 Partly Cloudy FEW090 SCT250          %              
Notice The following observation data may not be complete
Jun 08 01:52   10 Clear CLR          %              
Jun 07 14:52 NE 15 10 Cloudy BKN030 BKN041 OVC200 66 55     68%              
Jun 07 11:52 E 10 10 Clear   66 55     68%     29.96 29.96      
Jun 07 09:26 ESE 3 10 Mostly Cloudy FEW017 SCT023 BKN028 64 56     75%     29.95        
Jun 06 12:52 WNW 10 10 Cloudy BKN055 OVC070 73 51     46%   72          
Jun 06 03:52 3 9 Partly Cloudy SCT150 63 61     93%              
Jun 05 19:52 Calm 10 Mostly Cloudy FEW040 BKN160 BKN200 70 65     84%     29.69 29.68     0
Jun 05 18:52 SW 5 10 Cloudy SCT040 BKN160 OVC200 71 65     81%   72 29.69 29.68      
Jun 05 14:39 N 8 4 Light Rain and Fog/Mist BKN014 BKN021 OVC100 69 66     90%     29.76   0