June Temperatures in Ontario

Average temperatures for June at cities, towns and parks throughout Ontario are given below.

You can jump to a separate table for each section of the province: Eastern, Central, Southwestern, Northeastern and Northwestern Ontario.

The tables list the normals for maximum and minimum monthly temperatures, in degrees Celsius and Fahrenheit, based on weather data collected from 1981 to 2010.

Eastern Ontario

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
75	57	Belleville	24	14
76	57	Cornwall	24	14
71	54	Kingston	22	12
75	56	Ottawa	24	13
74	48	Pembroke	24	9

Central Ontario

Average daily temperatures in June
High °F	Low °F	Place	High °C	Low °C
74	54	Barrie	24	12
76	55	Brantford	25	13
74	50	French River, Chaudiere Dam	23	10
76	56	Hamilton	24	13
73	52	Huntsville	23	11
74	52	Midland	23	11
76	57	Niagara Falls	24	14
72	55	Oshawa	22	13
74	55	Peterborough	23	13
76	56	St Catharines	24	13
75	59	Toronto	24	15

Southwestern Ontario

June temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
78	59	Chatham-Kent	26	15
74	51	Guelph	23	11
75	55	London	24	13
71	53	Owen Sound	22	11
75	59	Point Pelee National Park	24	15
75	55	Sarnia	24	13
74	53	Waterloo	24	12
78	59	Windsor	26	15

Northeastern Ontario

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
70	47	Chapleau	21	8
70	50	Gore Bay	21	10
71	46	Kapuskasing	22	8
66	42	Moosonee	19	5
71	52	North Bay	22	11
71	47	Sault Ste Marie	21	8
67	48	South Baymouth	19	9
72	51	Sudbury	22	11
71	46	Timmins	22	8
66	43	Wawa	19	6

Northwestern Ontario

Average June temperatures
High °F	Low °F	Place	High °C	Low °C
71	50	Atikokan	22	10
63	43	Big Trout Lake	17	6
71	51	Dryden	22	11
73	50	Fort Frances	23	10
71	53	Kenora	22	12
70	48	Red Lake	21	9
69	45	Thunder Bay	21	7

Average Temperatures for Ontario in June

Eastern Ontario

Central Ontario

Southwestern Ontario

Northeastern Ontario

Northwestern Ontario

Reference

More Ontario Weather Information