Treasure Valley Heat Advisory Warns of Extreme Temperatures

The US National Weather Service in Boise has issued a Heat Advisory for the Treasure Valley and Malheur County until 9 PM MDT this evening. Lower elevations are expected to reach temperatures between 98 and 103 degrees. Residents are advised to limit outdoor activities and take precautions to avoid heat exhaustion or heat stroke, including staying hydrated.

Tuesday, August 12, 2025, afternoon high temperatures were reported from various locations. Among these, Weiser, Ontario, and Emmett reached 103°F while locations such as Riggins reported 102°F and Rome recorded 102°F. Other reported temperatures include:

• Joseph: 90°F

• Counsel: 99°F

• John Day: 98°F

• Unity: 95°F

• Sumpter: 92°F

• Baker City: 96°F

• Halfway: 101°F

• Caldwell: 101°F

• Boise: 101°F

• Mountain Home: 101°F

• Grand View: 97°F

• Jordan Valley: 97°F

• Grasmere: 95°F

• Owyhee: 95°F

• Gooding: 96°F

• Jerome: 94°F

• Twin Falls: 92°F

• Jackpot: 92°F

• Loman: 98°F

• Idaho City: 97°F

• Lowman: 98°F

• Stanley: 88°F

• Cascade: 85°F

• McCall: 89°F

• Yellow Pine: 87°F

• Challis: 93°F

The advisory emphasizes the importance of avoiding excessive heat exposure during the hottest part of the day.



Source: US National Weather Service Boise Idaho

Source Type: Weather

Source Location:

Aug 12, 2025 at 12:55 PM Weather

Caldwell

3833 S Development Ave, # 3807, Boise, ID

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