Dauphin is under an orange heat warning from Environment Canada, with humidex values reaching 45 degrees over the weekend and continuing into Monday, and a forecast humidex of 40 on Monday July 13, 2026. The warning covers the R.M. of Dauphin including Sifton and Valley River, as a multi-day heat event continues through the weekend into Monday.
Daytime highs in the mid-30s are forecast, with temperatures reaching 32 degrees on Monday. The real concern is overnight lows not dropping below 16 degrees, with a forecast low of 17°C, which prevents the body from recovering from daytime heat stress. Meteorologist Rose Carlsen from Environment Canada explains that the southern Manitoba heat warning criteria requires a high of 32, a low of 16, and then another high of 32 degrees.
Residents are urged to stay hydrated, avoid outdoor activities during peak afternoon heat, and check on neighbours who are older or live alone. Those without air conditioning can seek relief at community centres, libraries, or shaded parks. The province allows municipalities to repurpose facilities as cooling spaces during heat events.
This heat follows dramatic weather extremes for Dauphin in 2026. In May, the city set an all-time temperature record of 37.0 degrees, breaking a record from 1919. Then, at the end of June and early July, severe flooding caused a local state of emergency after roughly 115 millimetres of rain fell in days, making June the city’s second-wettest on record. Dauphin Lake levels topped flood stage, and patients were evacuated from the regional health centre.
Conditions are expected to moderate by Tuesday, with highs dropping to the high 20s or low 30s. For heat-related health concerns, Manitobans can contact Health Links–Info Santé at 204-788-8200 or 1-888-315-9257.
