Environment Canada says Dauphin, Manitoba will see a steady warming trend this week, with daytime highs climbing from 24°C on Monday, May 25, 2026 to the mid 30s by Thursday and Friday, well above the late-May normal high of 21°C. The federal forecast issued at 4:00 PM CDT on May 25, 2026 projects highs of about 34 to 36°C later in the week, and residents should prepare for rapidly changing conditions as temperatures build. A separate prediction that called for 37°C mid-week differs by roughly 3°C from Environment Canada’s official outlook and should be treated as unverified until updated guidance is issued.
As of 12:00 PM CDT Monday 25 May 2026 the Dauphin Airport observation showed a temperature of 19.3°C under sunny skies, with north winds 15 km/h gusting to 32 km/h, humidity at 33 percent and pressure at 101.1 kPa, according to Environment Canada. The agency’s 7-day forecast also shows overnight lows remaining relatively mild, ranging from about 8°C to near 19°C, which will keep nighttime relief limited during the warmest days.
Manitoba Health, Seniors and Long-Term Care issues heat warnings through the provincial Heat Alert and Response System when forecasts meet specific thresholds for at least two consecutive days; in southern Manitoba that means daytime highs of 32°C or more combined with overnight lows of 16°C or higher, or a humidex of 38 or above. Residents should monitor official notices from Manitoba Health, Seniors and Long-Term Care and Environment Canada for any heat warnings as the week progresses.
Dauphin Lake stood at 856.12 feet on May 25, 2026, putting it above the lake’s upper operating range of 854.8 feet but still below flood stage at 858 feet, data from the provincial Hydrologic Forecast Centre shows. The March 2026 Flood Outlook Report noted that Dauphin Lake may temporarily rise above its operating range while remaining below flood protection levels, a finding consistent with current measurements; more information is available in the Dauphin Lake water level bulletin and the March 2026 Flood Outlook Report. With hot, dry air likely to increase evaporation and stress vulnerable people, residents are advised to stay hydrated, check on seniors and those with health conditions, and keep an eye on official forecasts and advisories.
