Weather Alerts For Firth, ID

# HEADLINE -------------------- HEAT ADVISORY REMAINS IN EFFECT UNTIL 9 PM MDT THIS EVENING # DETAILS -------------------- WHAT Temperatures of 95 to 100 this afternoon. WHERE Eastern Magic Valley, Shoshone/Lava Beds, Arco/Mud Lake Desert, Franklin/Eastern Oneida Region, Lower Snake River Plain, Marsh and Arbon Highlands, Raft River Region, Southern Hills/Albion Mountains, and Upper Snake River Plain. WHEN Until 9 PM MDT this evening. IMPACTS Hot temperatures may cause heat illnesses. ISSUED AT Sunday, July 26, 2026 at 12:26 AM MDT ISSUED BY National Weather Service Pocatello ID HEADER URGENT - WEATHER MESSAGE # PRECAUTIONARY/PREPAREDNESS ACTIONS -------------------- Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. # AREAS AFFECTED -------------------- Lower Snake River Plain, Arco/Mud Lake Desert, Eastern Magic Valley, Franklin/Eastern Oneida Region, Marsh and Arbon Highlands, Raft River Region, Shoshone/Lava Beds, Southern Hills/Albion Mountains, Upper Snake River Plain Including the cities of Thatcher, Malta, Rexburg, Inkom, Preston, St. Anthony, Holbrook, Lava Hot Springs, Mud Lake, Malad, Rockland, Craters of the Moon NM, Heyburn, McCammon, Carey, Oakley, Idaho Falls, Albion, Fort Hall, Burley, Rupert, INL, American Falls, Downey, Richfield, Blackfoot, Pocatello, Shelley, Almo, and Shoshone