I noticed that his morning also but when I checked all of the nearby stations were also 0. But it looks like now the others are showing wind. I found this.
WIND SENSOR
If the connection to the wind sensor has been lost, it may be due to a lack of direct sunlight. The wind sensor relies on sunlight to keep its solar cells charged. If the sensor has not been exposed to sunlight for more than three days, this may have caused it to lose connection with the weather station. Once the wind sensor has been exposed to sunlight, either by moving it unto direct sunlight or placing it under a bright lamp, it should reconnect to the weather station. If it does not reconnect on its own, initiate the re‐learn process on the weather station (press and hold the up ^ arrow until the weather station beeps).
Also make sure that both easy weather and WUHU are set to the same wind speed ie mph or km ect.