Nova Scotia highway webcams are operated by the Nova Scotia Department of Transportation and Infrastructure Renewal (TIR). Most are mounted on tall steel towers, most of which have weather sensors included on the tower. The sensors measure temperature, humidity, barometric pressure and wind direction and speed.
The webcam pic below is more or less real time and will update every 30 to 40 minutes, depending on conditions.
This highway webcam is about 200 metres west of Exit 15 on Hwy 104. This is the westernmost exit for Truro, NS. The camera looks east toward the Highway 102 overpass.