| NWS Forecast for: Big Belt, Bridger and Castle Mountains Issued by: National Weather Service Great Falls, MT Last Update: 332 AM MDT Mon Apr 13 2026 | |
| Today: Breezy. Partly sunny. Slight chance of snow in the late morning and early afternoon. Slight chance of rain early in the afternoon, then chance of rain and snow late in the afternoon. Highs 42 to 52. Southwest winds 10 to 15 mph shifting to the west 10 to 25 mph in the afternoon. Gusts up to 55 mph. Chance of precipitation 50 percent. Tonight: Mostly cloudy. Chance of snow and slight chance of rain in the evening. Lows in the lower 30s. West winds 5 to 15 mph with gusts to around 45 mph. Chance of precipitation 40 percent. Tuesday: Breezy. Mostly sunny. Highs 45 to 55. Southwest winds 5 to 15 mph shifting to the west 10 to 25 mph in the afternoon. Gusts up to 50 mph. Tuesday Night: Mostly cloudy. Lows in the mid 30s. Southwest winds 5 to 15 mph. Gusts up to 50 mph decreasing to 35 mph after midnight. Wednesday: Windy. Mostly cloudy. Slight chance of snow in the morning, then rain and snow likely in the afternoon. Snow level 6200 feet. Highs 46 to 54. Southwest winds 10 to 15 mph with gusts to around 50 mph increasing to 15 to 30 mph with gusts to around 60 mph in the afternoon. Chance of precipitation 70 percent. Wednesday Night: Colder. Rain and slight chance of snow in the evening, then snow after midnight. Heavy snow accumulations. Lows 23 to 29. Chance of precipitation near 100 percent. Thursday: Colder, snow. Heavy snow accumulations. Near steady temperature in the upper 20s. Chance of snow near 100 percent. Thursday Night And Friday: Mostly cloudy. A 50 percent chance of snow. Lows around 18. Highs 32 to 40. Friday Night And Saturday: Partly cloudy. A 20 percent chance of snow. Lows in the lower 20s. Highs 41 to 49. Saturday Night: Mostly cloudy. Lows around 30. Sunday: Not as cool. Mostly sunny. A 20 percent chance of rain and snow in the afternoon. Highs 50 to 58. | |
| Zone Forecast: Big Belt, Bridger and Castle Mountains | |
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