| NWS Forecast for: Gallatin and Madison County Mountains and Centennial Mountains Issued by: National Weather Service Great Falls, MT Last Update: 1232 PM MDT Wed Aug 12 2026 | |
| Rest Of Today: Partly sunny. Patchy smoke through the day. Chance of rain showers and slight chance of thunderstorms late in the afternoon. Near steady temperature in the lower 70s. Southwest winds 5 to 15 mph. Chance of precipitation 50 percent. Tonight: Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening. Patchy smoke through the night. Lows 44 to 50. Southeast winds up to 10 mph with gusts to around 25 mph. Chance of precipitation 50 percent. Thursday: Partly sunny. Patchy smoke through the day. A 50 percent chance of thunderstorms in the afternoon. Highs 60 to 68. South winds up to 10 mph. Thursday Night: Rain showers likely and chance of thunderstorms in the evening, then rain showers likely after midnight. Lows 43 to 49. Southeast winds up to 10 mph. Chance of precipitation 70 percent. Friday: Rain showers likely and slight chance of thunderstorms in the morning, then rain showers and chance of thunderstorms in the afternoon. Highs 55 to 65. South winds up to 10 mph. Chance of precipitation near 100 percent. Friday Night: Mostly cloudy. Rain showers and chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 41 to 47. Chance of precipitation 80 percent. Saturday And Saturday Night: Mostly cloudy with rain showers likely and chance of thunderstorms. Highs 58 to 68. Lows 41 to 47. Chance of precipitation 70 percent. Sunday: Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 62 to 72. Sunday Night: Partly cloudy with a 20 percent chance of thunderstorms in the evening, then mostly cloudy after midnight. Lows 42 to 50. Monday: Partly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs 63 to 73. Monday Night: Mostly cloudy. Chance of rain showers and slight chance of thunderstorms in the evening, then slight chance of rain showers after midnight. Lows 44 to 50. Chance of precipitation 50 percent. Tuesday: Partly sunny. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 63 to 73. Chance of precipitation 40 percent. | |
| Zone Forecast: Gallatin and Madison County Mountains and Centennial Mountains | |
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