Ontario Highway 17 Current Weather Conditions with Radar. See 12 hour weather, wind, and temperature forecast on the Ontario Highway 17 corridor. Check conditions hour by hour with the time slider, switch between weather, temperature and wind views, and watch live radar for the route.
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Along Ontario Highway 17, expect mostly cloudy to overcast conditions with periods of light rain, especially in the southern and central parts of the route. Winds will be generally moderate, with gusts reaching 20 to 21 mph in some areas. Temperatures will remain mild, mostly in the 40s and low 50s Fahrenheit.