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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Playlister UK weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Calgary’s weather is defined by dramatic swings: the live forecast above shows today’s conditions, but expect Chinook winds to rapidly lift winter temperatures, while summer brings dry heat and sudden thunderstorms.
What is Calgary’s typical weather pattern?
Calgary has a semi-arid continental climate with four distinct seasons, heavily influenced by the Rocky Mountains.
- Winters (Nov–Mar): Cold, with average highs near -1°C to -5°C, but Chinook winds can push temperatures above 10°C in hours. Snowfall is moderate but variable.
- Spring (Apr–May): Unpredictable; snow in April is common, followed by rapid warming. Average highs climb from 10°C to 18°C.
- Summers (Jun–Aug): Warm and dry, with July highs averaging 23°C. Occasional afternoon thunderstorms and hail are typical.
- Autumn (Sep–Oct): Cool and crisp, with early frosts by October. Daytime highs range from 15°C to 5°C.
How does the weather vary by month?
For a detailed breakdown, check the 10 day weather forecast UK for comparison, but Calgary’s monthly extremes are wider than most British cities.
- January: Coldest month, average low -15°C. Snow cover likely.
- July: Warmest month, average high 23°C. Low humidity.
- Rainfall: June is wettest (80mm); February is driest (10mm).
- Sunshine: Over 2,400 hours annually — much sunnier than the UK.
What is a Chinook wind in Calgary?
A Chinook is a warm, dry wind that descends from the Rockies, often raising temperatures by 15–20°C within hours. It can melt snow rapidly and is common from November to February.
Does Calgary get tornadoes?
Yes, though rare. Calgary lies on the edge of Alberta’s tornado alley. Weak tornadoes (EF0–EF1) occur a few times a decade, usually during summer thunderstorms.
How does Calgary weather compare to the UK?
Calgary has colder winters, sunnier summers, and far lower humidity than the UK. British weather is milder and wetter year-round, while Calgary sees sharper seasonal extremes and more sunshine.
Sources
For a broader look at conditions across Britain, explore the UK weather hub or see how Birmingham Weather and Glasgow Weather compare. For extended planning, consider the calgary weather 14 day outlook, calgary weather monthly averages, and calgary weather yearly trends. The calgary weather next 30 days can shift rapidly, especially calgary weather in summer when thunderstorms peak. Check calgary weather tomorrow for short-term changes, always shown in calgary weather in celsius. For hour-by-hour detail, use the calgary weather hourly view from the live forecast above.