Clouds will increase this evening ahead of a low pressure trough that will brush by eastern Idaho. Winds will also pick up this afternoon, with sustained winds in the upper teens. While no precipitation is expected for the Snake River Plain, it is possible that Island Park and West Yellowstone see some rain/snow tonight. Another ridge will quickly regain hold and lead to more sunny and mild weather for Fri-Sun.
Wednesday: Mostly sunny with highs in the 60’s. Clouds will increase in the evening. Slight chance of snow and rain for locations along the Montana border and National Parks.
Tonight: Partly cloudy with lows in the low to mid 30’s.
Thursday: Mostly sunny, with a highs into the mid 50’s. Slight chance of snow and rain for locations along the Montana border and National Parks in the morning.
Friday: Sunny with highs in the 50’s.
Saturday: Sunny with highs in the 60’s.