| NWS Forecast for: Big Belt, Bridger and Castle Mountains Issued by: National Weather Service Great Falls, MT Last Update: 226 AM MDT Wed Jul 30 2025 |  |
| Today: Mostly cloudy. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 65 to 75. East winds 5 to 15 mph. Chance of precipitation 50 percent. Tonight: Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 50 to 55. East winds 5 to 15 mph. Thursday: Partly cloudy in the morning, then mostly cloudy with a 50 percent chance of thunderstorms in the afternoon. Highs 70 to 80. East winds up to 10 mph. Thursday Night: Mostly cloudy with a 50 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 50 to 55. East winds 5 to 15 mph. Friday: Partly cloudy in the morning, then mostly cloudy with a 50 percent chance of thunderstorms in the afternoon. Highs 70 to 80. Southeast winds up to 5 mph shifting to the southwest in the afternoon. Friday Night: Mostly cloudy with a 40 percent chance of thunderstorms. Lows 50 to 55. Saturday: Partly cloudy with a 40 percent chance of thunderstorms. Highs 70 to 80. Saturday Night: Partly cloudy with chance of rain showers and slight chance of thunderstorms. Lows 50 to 55. Chance of precipitation 40 percent. Sunday: Sunny with a 20 percent chance of thunderstorms. Highs 70 to 80. Sunday Night: Partly cloudy with a 20 percent chance of thunderstorms. Lows 50 to 55. Monday And Monday Night: Mostly cloudy with a 40 percent chance of thunderstorms. Highs 65 to 75. Lows around 50. Tuesday: Partly cloudy with a 20 percent chance of thunderstorms. Highs 65 to 75. | |
| Zone Forecast: Big Belt, Bridger and Castle Mountains | |
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