Weather Forecasts, Road Conditions, and Weather Radar for I-15 in Montana

Current & 7-day weather forecast, road conditions, and weather radar for US interstate I-15 in Montana.
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Weather Radar for I-15 in Montana

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Interstate I-15 Road Conditions in Montana

Interstate I-15 in Montana is generally in good condition. However, during winter months there can be stretches of icy or snowy roads and drivers should be prepared for winter driving conditions. The Montana Department of Transportation (MDT) does its best to keep the interstate in optimal condition and provides up-to-date road conditions and closures on its website.

The MDT regularly inspects the road and repairs potholes, cracks, and other damage as needed. Motorists should be aware of construction zones and follow posted speed limits when driving through them.

I-15 also has several scenic overlooks, giving travelers the chance to enjoy the landscape without ever leaving the interstate. Wildlife is abundant along the way, so travelers should always be mindful of their surroundings.

Overall, Interstate I-15 in Montana is generally in good condition and provides a safe and scenic route for travelers. Motorists should always remain aware of their surroundings and follow the posted speed limits to ensure a safe journey.

Weather in Montana on I-15

Montana is a state with a wide variety of weather, particularly along the Interstate I-15. This interstate runs from the Canadian border in the north to the Idaho state line in the south. Throughout its route, a traveler can experience a variety of climates.

In the north, along the Canadian border, the weather is generally cold and dry, with cold winters and warm summers. Snowfall can occur during the winter months, and temperatures can drop below freezing.

As one travels further south along the interstate, temperatures become milder and more humid. Rainfall can be experienced in the spring and early summer months, and temperatures can reach up to the mid-90s during the summer months.

As one continues south, the weather becomes more arid and dry. The area around Great Falls experiences hot, dry summers and cold, dry winters. In the winter, temperatures can drop below freezing, and snowfall is common.

Finally, as the interstate reaches the Idaho state line, the climate becomes more mild and humid. Temperatures rarely dip below freezing and rainfall is more frequent.

No matter where you travel along I-15 in Montana, you can be sure to experience a variety of weather conditions.

Major Junctions of I-15 in Montana

  • I-15 South begins at the Sweetgrass-Coutts Border Crossing at the Canadian border near Sweet Grass, Montana.
  • I-15 has a major junction at I-315 in Great Falls, Montana.
  • I-15 has major junctions with US-12 and US-287 in Helena, Montana.
  • I-15 has major junctions at I-90 and I-115 in Butte, Montana.

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 Montana.