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Live forecasts update automatically; written guidance last reviewed 20 June 2026 by the Edinburgh Wire weather desk. Data from national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Calgary’s weather is notoriously unpredictable, with a semi-arid continental climate that sees summer highs around 23°C and winter lows plunging to -15°C, frequently interrupted by warming Chinook winds that can raise temperatures by 20°C in hours.
What drives Calgary’s extreme temperature swings?
Calgary sits 1,045 metres above sea level on the Alberta prairies, close to the Rocky Mountains. This inland position produces a dry climate with low humidity and abundant sunshine — about 2,400 hours annually. The most dramatic feature is the Chinook wind, a warm, dry gust that descends from the mountains, rapidly melting snow and bringing brief spring-like warmth even in midwinter. The live forecast above will show whether such a pattern is expected today.
How does Calgary’s weather change through the year?
Winters (November to March) are cold and snowy, with average daytime highs of -1°C in January. Summers (June to August) are warm and mild, with July highs averaging 23°C and low rainfall – usually about 15 mm per month. Spring and autumn are short, often marked by strong winds and sharp frosts. For a detailed look at trends, consult calgary weather monthly averages or calgary weather yearly data from the Met Office. The calgary weather 14 day forecast gives a reliable medium-range view, while calgary weather next 30 days offers a longer outlook. Hourly breakdowns (calgary weather hourly) are useful for planning trips, and tomorrow’s conditions are always visible in the live forecast above – all reported in calgary weather in celsius.
When is the best time to visit Calgary for good weather?
For reliable warmth and outdoor activities, June to August offer daytime highs of 20–25°C, low rain, and long daylight hours. However, even summer can bring afternoon thunderstorms, so pack layers.
Does Calgary get a lot of snow?
Calgary averages about 130 cm of snow annually, but Chinook winds often clear it quickly. Snow can fall from October to May, with January and February seeing the deepest accumulations.
How strong are Calgary’s Chinook winds?
Chinooks can gust over 100 km/h, sometimes exceeding 120 km/h. They typically last a few days and raise temperatures dramatically, but also create rapid freeze-thaw cycles and occasional damage.
Sources
For the latest UK conditions, visit our weather hub. Compare Calgary’s pattern with Glasgow weather or check the 10-day forecast for British cities. Summer visitors to Calgary (calgary weather in summer) should also note that calgary weather tomorrow can shift rapidly, so always refer to the live forecast above.