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Weather station's callsign: Clear
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APRS/CWOP weather report from EW9856 - info
Location: 37°42.55' N 122°04.32' W - locator CM87XR10IE - show map
2.1 km Northeast bearing 37° from Castro Valley, Alameda County, California, United States [?]
7.6 km East bearing 103° from San Leandro, Alameda County, California, United States
31.4 km East bearing 103° from San Francisco, San Francisco County, California, United States
44.0 km North bearing 339° from San Jose, Santa Clara County, California, United States
Last WX report: 2026-01-06 22:15:08 UTC (7m11s ago)
2026-01-06 14:15:08 PST local time at Castro Valley, United States [?]
Temperature: 16.7 °C
Dew point: 10.6 °C
Humidity: 67 %
Pressure: 1017.7 mbar
Wind: Northeast 28° 0.9 m/s (Gusts 4.0 m/s)
Rain: 0.3 mm during last 1 hour, 0.5 mm during last 24 hours, 0.5 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.
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