weather in jasper canada in july
Weather in July in Jasper, Alberta. 1  The average temperature in Jasper, Alberta in July is mild at 15.1 Â°C (59.18 Â°F). 2  Afternoons can be really warm with average high temperatures reaching 22.2 Â°C (72 Â°F). 3  Overnight temperatures are generally a little cool with an average low of 8 Â°C (46.4 Â°F).