| NWS Forecast for: Gallatin and Madison County Mountains and Centennial Mountains Issued by: National Weather Service Great Falls, MT Last Update: 336 PM MDT Sat Oct 3 2026 |  |
Tonight: Mostly clear. Lows 39 to 45. South winds up to 10 mph. Sunday: Sunny. Highs 63 to 73. Southwest winds up to 10 mph. Sunday Night: Mostly clear. Lows 42 to 50. South winds up to 15 mph with gusts to around 30 mph. Monday: Mostly sunny. Highs 65 to 75. Southwest winds 5 to 15 mph with gusts to around 30 mph. Monday Night: Mostly clear. Lows 42 to 48. Southwest winds up to 10 mph with gusts to around 25 mph. Tuesday: Sunny. Highs 61 to 71. Tuesday Night Through Friday: Mostly clear. Lows 39 to 46. Highs 59 to 71. Friday Night: Partly cloudy. Lows 39 to 45. Saturday: Mostly sunny with a 20 percent chance of rain. Highs 50 to 60. | |
| Zone Forecast: Gallatin and Madison County Mountains and Centennial Mountains | |
Visit your local NWS office at: https://www.weather.gov/tfx |