Markham weather in July
Long-run climate averages for Markham, Ontario in July, plus what the forecast models say for the days ahead.
In July, Markham averages 26°C by day and 16°C at night. The wettest month is usually August.
July in Markham averages a daytime high of 26°C and an overnight low of 16°C, which reads as warm for this part of the world. It is the warmest month of the year here. Across the whole year Markham sees roughly 903 mm of precipitation.
Climate averages tell you what to pack. They do not tell you what next Tuesday looks like - for that, see the live Markham forecast with every model compared and how much they currently agree.
Markham weather by month
what to expect in Markham through the year, 1991-2020 averagesHere is Markham's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Markham by season.
Bottom line: over the last 30 days the European model has been the most accurate forecast for Markham, scoring 93/100 on our CheckWeather Score, ahead of the Env. Canada at 87. See the full CA accuracy scoreboard for exactly how every model is tested.
Common questions
How warm is Markham in July?
Is July a good time to visit Markham?
Does it rain a lot in Markham in July?
Climate averages from ERA5 reanalysis. Model accuracy re-scored over a rolling 30 days. Page updated .