| NWS Forecast for: Southwestern Yellowstone Issued by: National Weather Service Billings, MT Last Update: 414 AM MST Tue Dec 30 2025 |  |
| Today: Decreasing clouds. Highs in the mid 40s. Southwest winds 10 to 20 mph. Tonight: Mostly clear. Lows in the lower 30s. Southwest winds 15 to 25 mph. Wednesday: Sunny. Highs in the upper 40s. Southwest winds 10 to 20 mph. Wednesday Night: Partly cloudy. Lows in the mid 30s. Southwest winds 10 to 20 mph. New Years Day: Mostly cloudy. Highs around 50. Southwest winds 5 to 15 mph. Thursday Night: Mostly cloudy. Lows in the mid 30s. Friday: Mostly cloudy. Highs in the lower 50s. Friday Night: Mostly cloudy. Lows in the upper 30s. Saturday: Partly sunny. Highs in the mid 50s. Saturday Night: Partly cloudy. Lows in the lower 30s. Sunday: Mostly sunny. Highs around 50. Sunday Night: Partly cloudy. Lows in the upper 20s. Monday: Mostly sunny. Highs in the upper 40s. | |
| Zone Forecast: Southwestern Yellowstone | |
Visit your local NWS office at: https://www.weather.gov/byz |