July Temperatures in Ontario

Average temperatures for July 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 July temperatures
High °F	Low °F	Place	High °C	Low °C
80	62	Belleville	27	17
81	62	Cornwall	27	17
77	60	Kingston	25	16
80	60	Ottawa	27	16
80	54	Pembroke	27	12

Central Ontario

Average daily temperatures in July
High °F	Low °F	Place	High °C	Low °C
79	60	Barrie	26	15
81	60	Brantford	27	15
79	56	French River, Chaudiere Dam	26	13
81	62	Hamilton	27	17
77	57	Huntsville	25	14
79	57	Midland	26	14
81	64	Niagara Falls	27	18
77	61	Oshawa	25	16
80	60	Peterborough	26	15
81	62	St Catharines	27	17
80	64	Toronto	27	18

Southwestern Ontario

July temperatures: daily averages
High °F	Low °F	Place	High °C	Low °C
82	63	Chatham-Kent	28	17
79	57	Guelph	26	14
80	59	London	26	15
77	60	Owen Sound	25	15
80	64	Point Pelee National Park	27	18
80	60	Sarnia	26	16
79	57	Waterloo	26	14
83	64	Windsor	28	18

Northeastern Ontario

Average July temperatures
High °F	Low °F	Place	High °C	Low °C
74	52	Chapleau	23	11
77	57	Gore Bay	25	14
75	51	Kapuskasing	24	11
73	48	Moosonee	23	9
75	57	North Bay	24	14
76	53	Sault Ste Marie	24	12
74	56	South Baymouth	23	13
77	56	Sudbury	25	13
76	51	Timmins	24	11
70	49	Wawa	21	9

Northwestern Ontario

Average July temperatures
High °F	Low °F	Place	High °C	Low °C
76	56	Atikokan	25	13
71	53	Big Trout Lake	21	11
76	56	Dryden	24	13
78	55	Fort Frances	25	13
76	59	Kenora	24	15
75	54	Red Lake	24	12
76	52	Thunder Bay	24	11

Average Temperatures for Ontario in July

Eastern Ontario

Central Ontario

Southwestern Ontario

Northeastern Ontario

Northwestern Ontario

Reference

More Ontario Weather Information