The weather in Idaho in January is very cold with temperatures between -22°C and -15°C, warm clothes are a must.
Idaho is going to be cold and wet in the month of January. Expect low temperatures and a few days of rain, so be sure to bundle up to avoid catching a cold.
You can expect a few days of snow in Idaho during January. It’s important to get out your snow boots and warm mittens to stay warm while you explore Idaho.
Our weather forecast can give you a great sense of what weather to expect in Idaho in January 2025.
If you’re planning to visit Idaho in the near future, we highly recommend that you review the 14 day weather forecast for Idaho before you arrive.