Extreme Heat Watches issued for Utah, Montana, and northern Wyoming, temperatures up to 43°C (110°F) forecast through July 27

Credit: Brent Pace A widespread period of dangerous heat is forecast to develop across parts of Utah, Montana, and northern Wyoming beginning Friday, July 24, and continuing through Sunday, July 26, into early next week for some areas. Afternoon temperatures are forecast to range from 35 to 43°C (mid-90s to 110°F). In northern Utah, overnight temperatures are also expected to remain exceptionally warm, providing little relief from the daytime heating. The watches issued , Glasgow, Billings, and Great Falls cover large portions of the Wasatch Front, Cache Valley, northeast and central Montana, and parts of north-central Wyoming. Forecasters note that confidence is increasing in widespread dangerous heat over the weekend, with the most intense conditions expected Friday and Saturday across much of Montana. Utah Wasatch Front, Utah (NWS Salt Lake City) The National Weather Service in Salt Lake City has maintained an Extreme Heat Watch from Saturday afternoon through Monday evening for the Wasatch Front, including the Salt Lake Valley, Utah Valley, Northern Wasatch Front, and eastern Box Elder County. Communities under the watch include Salt Lake City, Ogden, Provo, Lehi, Sandy, West Jordan, Bountiful, Brigham City, Payson, and Snowville. Afternoon temperatures are forecast to reach 39°C (102°F), creating dangerous conditions capable of significantly increasing the risk of heat-related illnesses during prolonged outdoor exposure. Cache Valley, Utah (NWS Salt Lake City) A separate Extreme Heat Watch is in effect from Saturday afternoon through Monday evening for the Utah portion of Cache Valley, including Logan and Smithfield. Daytime temperatures are forecast to range from 36 to 38°C (97 to 101°F), while overnight temperatures are unlikely to fall below 21°C (70°F), limiting overnight cooling and increasing cumulative heat stress over several consecutive days. The NWS notes that confidence is increasing for HeatRisk to reach Major levels through the weekend and into early next week, with the combination of persistent daytime heat and warm nights expected to drive sustained impacts. Montana Northeast Montana (NWS Glasgow) The National Weather Service in Glasgow has maintained an Extreme Heat Watch from Friday morning through Sunday evening for most of northeast Montana. The watch encompasses central and southeast Phillips County, central and southern Valley County, western and eastern Roosevelt County, Petroleum, Garfield, McCone, Richland, Dawson, Prairie, Wibaux, northern Phillips County, southwest Phillips County, and northern Valley County. Communities included under the watch are Glasgow, Sidney, Malta, Wolf Point, Poplar, Glendive, Circle, Terry, Jordan, Wibaux, Fairview, Hinsdale, Culbertson, Opheim, Fort Peck, Frazer, Whitewater, Richey, Saco, Winnett, and Zortman.