| NWS Forecast for: Big Belt, Bridger and Castle Mountains Issued by: National Weather Service Great Falls, MT Last Update: 1232 PM MDT Sat Aug 8 2026 |  |
Rest Of Today: Sunny. Areas of smoke early in the afternoon, then patchy smoke late in the afternoon. Highs 77 to 87. Northwest winds 10 to 15 mph with gusts to around 40 mph. Tonight: Partly cloudy. Patchy smoke. Lows in the mid 50s. North winds 5 to 10 mph with gusts to around 35 mph shifting to the southwest after midnight. Sunday: Sunny. Patchy smoke in the morning, then areas of smoke in the afternoon. Highs 73 to 83. Northwest winds up to 10 mph with gusts to around 30 mph. Sunday Night: Partly cloudy. Patchy smoke in the evening, then areas of smoke after midnight. Lows in the mid 50s. Northeast winds 5 to 10 mph shifting to the east after midnight. Gusts up to 30 mph. Monday: Sunny. Areas of smoke in the morning. Highs 75 to 85. South winds up to 5 mph shifting to the west with gusts to around 35 mph in the afternoon. Monday Night: Mostly clear. Lows in the mid 50s. Tuesday: Sunny. Highs 73 to 83. Tuesday Night And Wednesday: Mostly clear. Lows in the lower 50s. Highs 68 to 78. Wednesday Night: Partly cloudy with slight chance of thunderstorms in the evening, then mostly cloudy with slight chance of rain showers after midnight. Lows in the lower 50s. Chance of precipitation 20 percent. Thursday Through Friday: Mostly cloudy with chance of rain showers and slight chance of thunderstorms. Highs 60 to 71. Lows in the upper 40s. Chance of precipitation 50 percent. | |
| Zone Forecast: Big Belt, Bridger and Castle Mountains | |
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