APRS/CWOP weather report from AT402 – aprs.fi

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Location:	38°56.09' N 77°23.77' W - locator FM18HW24LI - show map 4.0 km South bearing 193° from Herndon, Fairfax County, Virginia, United States [?] 5.5 km South bearing 173° from Oak Grove, Loudoun County, Virginia, United States 31.4 km West bearing 278° from Washington, D. C., Washington, D.C., United States 78.3 km Southwest bearing 240° from Baltimore, City of Baltimore, Maryland, United States
Last position:	2025-11-06 05:03:47 UTC (2m55s ago) 2025-11-06 00:03:47 EST local time at Herndon, United States [?]
Last WX report:	2025-11-06 04:58:44 UTC (7m58s ago) 2025-11-05 23:58:44 EST local time at Herndon, United States [?]
Temperature:	16.1 °C
Dew point:	7.6 °C
Humidity:	57 %
Pressure:	1011.9 mbar
Wind:	South 186° 0.4 m/s (Gusts 4.9 m/s)
Rain:	0.0 mm during last 1 hour, 7.1 mm during last 24 hours, 7.1 mm since midnight

This page shows weather data collected mostly by privately owned and operated weather stations. Stations with a CW-prefixed, numbered callsign are taking part in the Citizen Weather Observer Program (CWOP). Most other weather stations are amateur radio operators with a weather station. Some information is also converted by individuals from publicly available sources like airport weather reports.