| NWS Forecast for: Southwestern Yellowstone Issued by: National Weather Service Billings, MT Last Update: 1238 AM MDT Fri Oct 2 2026 |  |
| Today: Sunny, warmer. Highs in the upper 70s. West winds 5 to 15 mph. Tonight: Mostly clear. Lows in the upper 40s. West winds 5 to 15 mph. Saturday: Sunny, cooler. Highs in the upper 60s. Northwest winds 5 to 15 mph in the morning shifting to the northeast in the afternoon. Saturday Night: Decreasing clouds. Lows in the mid 40s. East winds 5 to 15 mph. Sunday: Sunny. Highs in the lower 70s. South winds 5 to 10 mph. Sunday Night: Mostly clear. Lows in the upper 40s. Monday: Mostly sunny. Warmer. Highs in the mid 80s. Monday Night: Partly cloudy. Lows in the mid 50s. Tuesday: Sunny. Highs in the upper 70s. Tuesday Night: Mostly clear. Lows around 50. Wednesday: Sunny. Highs in the upper 70s. Wednesday Night: Mostly clear. Lows in the upper 40s. Thursday: Sunny. Highs in the mid 70s. | |
| Zone Forecast: Southwestern Yellowstone | |
Visit your local NWS office at: https://www.weather.gov/byz |