North-central pressure system traps hot air; highs into the 90s expected statewide
A persistent heat dome parked over the northern Plains and upper Midwest will bring a weeklong run of hot, humid weather to Minnesota beginning Saturday, the National Weather Service reported. Daily temperatures in the Twin Cities are forecast to reach the mid-90s, while parts of northern Minnesota are under a heat advisory with highs near 95 degrees.
Forecasters said the dome—an area of high atmospheric pressure that suppresses cloud cover and traps warm air—will keep temperatures elevated through the upcoming week, producing daytime highs in the 90s and overnight lows that generally remain in the 70s. The period of most intense heat is expected Sunday through Tuesday, with little relief from rain or thunderstorms.
| Location | Expected highs |
|---|---|
| Twin Cities | 93–97°F |
| St. Cloud | 94°F |
| Northern Minnesota (advisory area) | ~95°F |
Health risks and precautions
Public-health officials and meteorologists emphasized the increased risk of heat-related illness during prolonged hot spells, particularly for older adults, young children, people with chronic illnesses and anyone working outdoors. The National Weather Service is advising residents to take typical heat-safety steps: stay hydrated, limit strenuous outdoor activity during the hottest hours, seek air-conditioned spaces and check on vulnerable neighbors and relatives.
"Heat can quickly catch up to you if you’re doing these strenuous activities,"
— Caleb Grunzke, meteorologist with the National Weather Service in Chanhassen, warned about the pace at which heat-related problems can develop during sustained high temperatures.
- Keep water available and drink often; do not wait until thirsty.
- Schedule heavy outdoor work for mornings or evenings when possible.
- Use air-conditioned public spaces if you do not have home cooling.
- Look for signs of heat exhaustion: heavy sweating, weakness, dizziness, nausea.
Forecasters said the stretch of hot weather is expected to ease only slightly by the week of July 20, with highs falling into the high 80s rather than offering substantial relief. With no significant precipitation in the short-term forecast, conditions are likely to remain sunny and muggy across the state.
For up-to-the-minute watches, warnings and localized forecasts, residents should consult the National Weather Service office in Chanhassen and local public-health advisories.
