| NWS Forecast for: Big Belt, Bridger and Castle Mountains Issued by: National Weather Service Great Falls, MT Last Update: 1242 PM MDT Tue Jun 9 2026 | |
Rest Of Today: Rain showers likely and chance of thunderstorms early in the afternoon, then rain showers and chance of thunderstorms late in the afternoon. Near steady temperature in the mid 50s. West winds 15 to 20 mph with gusts to around 40 mph. Chance of precipitation near 100 percent. Tonight: Colder. Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy with slight chance of rain showers after midnight. Lows in the upper 30s. West winds 10 to 20 mph. Gusts up to 45 mph increasing to 55 mph after midnight. Chance of precipitation 50 percent. Wednesday: Windy. Partly sunny. Slight chance of rain showers and snow showers in the morning, then chance of rain showers, snow showers and slight chance of thunderstorms in the afternoon. Highs 43 to 53. West winds 15 to 30 mph with gusts to around 70 mph. Chance of precipitation 50 percent. Wednesday Night: Windy. Snow showers likely and chance of rain showers in the evening, then chance of rain showers and snow showers after midnight. Light snow accumulations. Lows in the upper 30s. West winds 15 to 30 mph decreasing to 10 to 15 mph after midnight. Gusts up to 75 mph. Chance of precipitation 70 percent. Thursday: Not as cool. Partly sunny in the morning then clearing. Highs 54 to 64. West winds 10 to 15 mph. Gusts up to 55 mph decreasing to 45 mph in the afternoon. Thursday Night And Friday: Mostly clear. Lows around 40. Highs 59 to 69. Friday Night: Partly cloudy. A 50 percent chance of rain showers after midnight. Lows in the lower 40s. Saturday: Partly sunny. Chance of rain showers in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 50 to 60. Chance of precipitation 50 percent. Saturday Night: Partly cloudy with a 20 percent chance of rain showers. Lows in the upper 30s. Sunday And Sunday Night: Partly cloudy. A 20 percent chance of thunderstorms. Highs 53 to 61. Lows in the upper 30s. Monday: Mostly sunny. Slight chance of rain showers in the morning, then chance of thunderstorms in the afternoon. Highs 58 to 66. Chance of precipitation 40 percent. | |
| Zone Forecast: Big Belt, Bridger and Castle Mountains | |
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