Weather Conditions : McLean, VA Current conditions, and daily, monthly, and yearly summaries "en" Wed, 16 Sep 2026 08:50:00 EDT Wed, 16 Sep 2026 08:50:00 EDT http://blogs.law.harvard.edu/tech/rss weewx 5.5.0 5.0 minutes Weather Conditions at 09/16/2026 08:50:00 AM Outside Temperature: 63.4°F; Inside Temperature: 77.0°F; Barometer: 30.329 inHg; Wind: 0 mph from N/A; Rain: 0.00 in; Rain Rate: 0.00 in/h; Wind Chill: 63.4°F; Heat Index: 64.0°F; Dew Point: 62.2°F; Outside Humidity: 96%; Inside Humidity: 47%; Wed, 16 Sep 2026 08:50:00 EDT 38.961861 -77.260737 Time: 09/16/2026 08:50:00 AM
Outside Temperature: 63.4°F
Inside Temperature: 77.0°F
Barometer: 30.329 inHg
Wind: 0 mph from N/A; Rain: 0.00 in
Rain Rate: 0.00 in/h
Wind Chill: 63.4°F
Heat Index: 64.0°F
Dew Point: 62.2°F
Outside Humidity: 96%
Inside Humidity: 47%

]]> Daily summary as of 09/16/2026 08:50:00 AM Min Outside Temperature: 57.7°F at 05:22:18 AM; Max Outside Temperature: 63.4°F at 08:49:32 AM; Min Inside Temperature: 76.8°F at 08:31:00 AM; Max Inside Temperature: 79.2°F at 12:12:59 AM; Min Barometer: 30.259 inHg at 02:10:59 AM; Max Barometer: 30.331 inHg at 08:42:00 AM; Max Wind: 0 mph from N/A at 12:00:03 AM; Rain: 0.00 in; Max Rain Rate: 0.00 in/h; Min Wind Chill: 57.7°F at 05:22:18 AM; Max Wind Chill: 63.4°F at 08:49:32 AM; Min Heat Index: 57.7°F at 05:22:18 AM; Max Heat Index: 64.0°F at 08:49:32 AM; Min Dew Point: 56.6°F at 05:22:18 AM; Max Dew Point: 62.4°F at 08:48:40 AM; Min Outside Humidity: 92% at 01:20:57 AM; Max Outside Humidity: 98% at 07:00:04 AM; Min Inside Humidity: 46% at 12:42:00 AM; Max Inside Humidity: 48% at 08:30:00 AM; Wed, 16 Sep 2026 08:50:00 EDT 38.961861 -77.260737 Daily summary as of 16 Sep 2026
Min Outside Temperature: 57.7°F at 05:22:18 AM
Max Outside Temperature: 63.4°F at 08:49:32 AM
Min Inside Temperature: 76.8°F at 08:31:00 AM
Max Inside Temperature: 79.2°F at 12:12:59 AM
Min Barometer: 30.259 inHg at 02:10:59 AM
Max Barometer: 30.331 inHg at 08:42:00 AM
Max Wind: 0 mph from N/A at 12:00:03 AM
Rain: 0.00 in
Max Rain Rate: 0.00 in/h
Min Wind Chill: 57.7°F at 05:22:18 AM
Max Wind Chill: 63.4°F at 08:49:32 AM
Min Heat Index: 57.7°F at 05:22:18 AM
Max Heat Index: 64.0°F at 08:49:32 AM
Min Dew Point: 56.6°F at 05:22:18 AM
Max Dew Point: 62.4°F at 08:48:40 AM
Min Outside Humidity: 92% at 01:20:57 AM
Max Outside Humidity: 98% at 07:00:04 AM
Min Inside Humidity: 46% at 12:42:00 AM
Max Inside Humidity: 48% at 08:30:00 AM

]]> Monthly summary as of 09/16/2026 08:50:00 AM Min Outside Temperature: 50.3°F at 09/15/2026 06:51:10 AM; Max Outside Temperature: 94.1°F at 09/01/2026 02:37:20 PM; Min Inside Temperature: 75.6°F at 09/15/2026 08:25:00 AM; Max Inside Temperature: 82.6°F at 09/02/2026 01:09:03 AM; Min Barometer: 29.781 inHg at 09/05/2026 04:54:05 PM; Max Barometer: 30.344 inHg at 09/15/2026 11:09:00 AM; Max Wind: 21 mph from 278° at 09/03/2026 11:32:58 PM; Rain: 1.98 in; Max Rain Rate: 7.48 in/h; Min Wind Chill: 50.3°F at 09/15/2026 06:51:10 AM; Max Wind Chill: 94.1°F at 09/01/2026 02:37:20 PM; Min Heat Index: 49.6°F at 09/15/2026 06:51:10 AM; Max Heat Index: 109.3°F at 09/01/2026 03:47:46 PM; Min Dew Point: 49.5°F at 09/15/2026 06:51:10 AM; Max Dew Point: 78.5°F at 09/03/2026 03:51:27 PM; Min Outside Humidity: 42% at 09/07/2026 02:29:05 PM; Max Outside Humidity: 100% at 09/04/2026 08:19:42 AM; Min Inside Humidity: 38% at 09/02/2026 04:57:04 AM; Max Inside Humidity: 65% at 09/12/2026 08:53:00 AM; Wed, 16 Sep 2026 08:50:00 EDT 38.961861 -77.260737 Monthly summary as of 01 Sep 2026
Min Outside Temperature: 50.3°F at 09/15/2026 06:51:10 AM
Max Outside Temperature: 94.1°F at 09/01/2026 02:37:20 PM
Min Inside Temperature: 75.6°F at 09/15/2026 08:25:00 AM
Max Inside Temperature: 82.6°F at 09/02/2026 01:09:03 AM
Min Barometer: 29.781 inHg at 09/05/2026 04:54:05 PM
Max Barometer: 30.344 inHg at 09/15/2026 11:09:00 AM
Max Wind: 21 mph from 278° at 09/03/2026 11:32:58 PM
Rain: 1.98 in
Max Rain Rate: 7.48 in/h
Min Wind Chill: 50.3°F at 09/15/2026 06:51:10 AM
Max Wind Chill: 94.1°F at 09/01/2026 02:37:20 PM
Min Heat Index: 49.6°F at 09/15/2026 06:51:10 AM
Max Heat Index: 109.3°F at 09/01/2026 03:47:46 PM
Min Dew Point: 49.5°F at 09/15/2026 06:51:10 AM
Max Dew Point: 78.5°F at 09/03/2026 03:51:27 PM
Min Outside Humidity: 42% at 09/07/2026 02:29:05 PM
Max Outside Humidity: 100% at 09/04/2026 08:19:42 AM
Min Inside Humidity: 38% at 09/02/2026 04:57:04 AM
Max Inside Humidity: 65% at 09/12/2026 08:53:00 AM

]]> Yearly summary as of 09/16/2026 08:50:00 AM Min Outside Temperature: 7.3°F at 01/27/2026 07:43:28 AM; Max Outside Temperature: 102.7°F at 07/03/2026 03:47:45 PM; Min Inside Temperature: 63.9°F at 03/14/2026 09:17:01 AM; Max Inside Temperature: 84.4°F at 07/04/2026 02:41:59 AM; Min Barometer: 29.204 inHg at 03/16/2026 07:37:02 PM; Max Barometer: 30.688 inHg at 01/24/2026 10:41:04 AM; Max Wind: 33 mph from 285° at 02/07/2026 02:21:32 PM; Rain: 31.48 in; Max Rain Rate: 12.80 in/h; Min Wind Chill: -5.3°F at 02/01/2026 08:00:17 AM; Max Wind Chill: 102.7°F at 07/03/2026 03:47:45 PM; Min Heat Index: 7.3°F at 01/27/2026 07:43:28 AM; Max Heat Index: 123.0°F at 07/02/2026 02:44:38 PM; Min Dew Point: -12.8°F at 01/24/2026 04:27:33 AM; Max Dew Point: 81.8°F at 07/18/2026 02:16:31 PM; Min Outside Humidity: 20% at 03/14/2026 02:33:55 PM; Max Outside Humidity: 100% at 05/25/2026 08:51:22 AM; Min Inside Humidity: 12% at 01/30/2026 12:49:59 PM; Max Inside Humidity: 65% at 09/12/2026 08:53:00 AM; Wed, 16 Sep 2026 08:50:00 EDT 38.961861 -77.260737 Yearly summary as of 01 Jan 2026
Min Outside Temperature: 7.3°F at 01/27/2026 07:43:28 AM
Max Outside Temperature: 102.7°F at 07/03/2026 03:47:45 PM
Min Inside Temperature: 63.9°F at 03/14/2026 09:17:01 AM
Max Inside Temperature: 84.4°F at 07/04/2026 02:41:59 AM
Min Barometer: 29.204 inHg at 03/16/2026 07:37:02 PM
Max Barometer: 30.688 inHg at 01/24/2026 10:41:04 AM
Max Wind: 33 mph from 285° at 02/07/2026 02:21:32 PM
Rain: 31.48 in
Max Rain Rate: 12.80 in/h
Min Wind Chill: -5.3°F at 02/01/2026 08:00:17 AM
Max Wind Chill: 102.7°F at 07/03/2026 03:47:45 PM
Min Heat Index: 7.3°F at 01/27/2026 07:43:28 AM
Max Heat Index: 123.0°F at 07/02/2026 02:44:38 PM
Min Dew Point: -12.8°F at 01/24/2026 04:27:33 AM
Max Dew Point: 81.8°F at 07/18/2026 02:16:31 PM
Min Outside Humidity: 20% at 03/14/2026 02:33:55 PM
Max Outside Humidity: 100% at 05/25/2026 08:51:22 AM
Min Inside Humidity: 12% at 01/30/2026 12:49:59 PM
Max Inside Humidity: 65% at 09/12/2026 08:53:00 AM

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