| NWS Forecast for: Gallatin and Madison County Mountains and Centennial Mountains Issued by: National Weather Service Great Falls, MT Last Update: 337 PM MDT Sat Aug 8 2026 |  |
Tonight: Partly cloudy with a 20 percent chance of rain showers early in the evening, then partly cloudy in the late evening and overnight. Smoke in the evening. Areas of smoke after midnight. Lows 49 to 55. Northwest winds up to 10 mph. Gusts up to 30 mph in the evening. Sunday: Sunny. Areas of smoke. Highs 73 to 83. West winds up to 5 mph with gusts to around 20 mph increasing to 10 to 15 mph with gusts to around 30 mph in the afternoon. Sunday Night: Partly cloudy. Areas of smoke. Lows 49 to 55. North winds 5 to 10 mph with gusts to around 30 mph shifting to the southwest after midnight. Monday: Sunny. Areas of smoke in the morning. Highs 74 to 84. Southwest winds up to 5 mph increasing to west 10 to 20 mph with gusts to around 35 mph in the afternoon. Monday Night: Mostly clear. Lows 48 to 54. Northwest winds up to 15 mph. Gusts up to 30 mph in the evening. Tuesday: Sunny. Highs 72 to 82. Tuesday Night And Wednesday: Partly cloudy. Lows 47 to 53. Highs 68 to 78. Wednesday Night: Mostly cloudy. Lows 45 to 51. Thursday: Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 63 to 73. Thursday Night: Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 43 to 49. Chance of precipitation 40 percent. Friday And Friday Night: Mostly cloudy. Chance of rain showers and slight chance of thunderstorms. Highs 60 to 70. Lows 43 to 49. Chance of precipitation 50 percent. Saturday: Partly sunny. Chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 60 to 70. Chance of precipitation 50 percent. | |
| Zone Forecast: Gallatin and Madison County Mountains and Centennial Mountains | |
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