Calgary is set to endure five consecutive days of wet weather beginning Friday, June 26, 2026, according to Environment Canada. The prolonged rainfall event is expected to bring significant precipitation to the region, with accumulations potentially reaching 30 to 50 millimeters over the five-day period.
Forecast details and timing
The rain is forecast to start early Friday morning and persist through at least Tuesday, with intermittent heavier showers possible. Daytime temperatures will hover around 15 to 18 degrees Celsius, slightly below the seasonal average of 20 degrees Celsius for late June. Nighttime lows will range from 8 to 12 degrees Celsius.
Environment Canada meteorologist Sarah Hoffman stated, "This is a classic late-spring low-pressure system that will stall over southern Alberta, drawing moisture from the Pacific. Residents should prepare for potentially slick roads and localized flooding in low-lying areas."
Impact on travel and outdoor activities
The wet conditions are likely to affect travel, with reduced visibility and increased risk of hydroplaning on major routes such as Deerfoot Trail and Crowchild Trail. The City of Calgary has advised drivers to allow extra time and ensure their vehicles have proper tire tread and functioning windshield wipers.
Outdoor events scheduled for the weekend, including the Calgary International Food Festival and several community sports tournaments, may face delays or cancellations. Organizers are monitoring the forecast and will make decisions by Friday morning.
Comparison to previous rainfall events
This five-day rain event is reminiscent of the June 2013 floods that caused extensive damage in southern Alberta, though current forecasts do not indicate similar intensity. The 2013 event saw up to 200 millimeters of rain in some areas, whereas this system is expected to deliver about a quarter of that amount.
Calgary Emergency Management Agency (CEMA) officials said they are monitoring river levels, particularly the Bow and Elbow rivers, but do not anticipate flood warnings at this time. CEMA spokesperson Tom Sampson noted, "We are prepared to activate our emergency operations center if conditions worsen, but current models suggest manageable rainfall."
Long-term outlook
Following the wet spell, a ridge of high pressure is expected to build over the region by Wednesday, bringing drier and warmer conditions for the remainder of the week. Highs could return to the low 20s by Thursday.
Environment Canada advises residents to stay updated through its website or mobile app for any changes to the forecast, including potential thunderstorm warnings that may accompany the system.
