... including targeted forecasts at the time of your arrival to each point!
Interstate I-15 in Idaho is generally in good condition, but drivers should be aware of certain road hazards. During the winter months, the highway can become icy and snow-packed due to the cold temperatures. Drivers should exercise caution when entering the highway and be prepared for slick roads and reduced visibility.
In rural areas, the highway can become narrow and winding, making for a more challenging drive. Drivers should be aware of animals crossing the highway and be prepared to slow down or take evasive action. Additionally, be aware of loose gravel and dirt roads, which can cause the highway to become slippery.
During the summer months, I-15 in Idaho can become quite hot and dry. Drivers should be aware of the risk of wildland fires in the area and take precautions such as keeping their car windows closed, avoiding stopping in dry grass, and never leaving a lit cigarette in the car.
In urban areas, traffic can become quite heavy, so drivers should plan accordingly and allow extra time for their journey. Additionally, drivers should be aware of construction zones along the highway and be prepared for lane closures and detours.
Idaho is known for its often unpredictable weather. Along Interstate I-15, temperatures can vary greatly depending on where you are. In southern Idaho, temperatures during the summer can reach up to the upper 90s. In the northern part of the state, temperatures can be much cooler. In the winter months, temperatures in the south can dip into the low 20s, while in the north they can dip into the single digits.
The weather in Idaho is also affected by its mountainous terrain. During the winter months, snow is common in the higher elevations. In the lower elevations, rain is more common. Storms, including thunderstorms, can occur year round and can bring strong winds, hail, and heavy rains.
We also provide a complete map of I-15.
This map shows the current & 7-day weather forecast, road conditions, and weather radar for US interstate I-15 in Idaho.