The US National Weather Service in Boise, Idaho, issued a Dense Fog Advisory at 1:26 AM MST on November 18, 2025. The advisory states that visibility in the affected area is expected to be one quarter mile or less in dense fog. The advisory will remain in effect until 10 AM MST, and drivers in the area should be cautious as low visibility may result in hazardous driving conditions.

An animation was available showing fog moving along I-84 in Nampa between 11:46 PM and 12:46 AM that morning.

Source: US National Weather Service Boise Idaho

Source Type: Weather

Source Location:

Nampa

3833 S Development Ave, # 3807, Boise, ID

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