Arnprior is a city of approximately 8,800 people in Ontario, Canada. Located in the Eastern Time Zone at 45.4°N latitude.
Recent weather here gives a sense of typical conditions: in 2025, Arnprior recorded a mean annual temperature of 44°F, ranging from -8°F lows in March to 92°F highs in August, with about 36 inches of precipitation across the year.
View historical weather for Arnprior · More cities in Ontario