| NWS Forecast for: Big Belt, Bridger and Castle Mountains Issued by: National Weather Service Great Falls, MT Last Update: 223 AM MST Sun Jan 11 2026 | |
| Today: Partly sunny. Highs 33 to 41. Southwest winds 5 to 15 mph with gusts to around 45 mph. Tonight: Mostly cloudy. Near steady temperature in the lower 30s. Southwest winds 5 to 15 mph with gusts to around 50 mph. Monday: Partly sunny. Highs 38 to 46. Southwest winds 5 to 15 mph. Gusts up to 55 mph increasing to 65 mph in the afternoon. Monday Night: Mostly cloudy. A 20 percent chance of rain and snow after midnight. Near steady temperature in the upper 30s. Southwest winds 10 to 20 mph with gusts to around 70 mph. Tuesday: Partly sunny. A 20 percent chance of rain and snow in the morning. Highs 41 to 49. Southwest winds 10 to 15 mph with gusts to around 60 mph. Tuesday Night: Mostly cloudy. Lows in the lower 30s. Wednesday And Wednesday Night: Mostly clear. Highs 43 to 51. Lows around 30. Thursday: Sunny. Highs 36 to 44. Thursday Night: Partly cloudy. Lows in the lower 20s. Friday: Partly sunny. Highs 27 to 35. Friday Night: Mostly cloudy in the evening then becoming partly cloudy. Lows in the lower 20s. Saturday: Not as cold. Sunny. Highs 34 to 42. | |
| Zone Forecast: Big Belt, Bridger and Castle Mountains | |
Visit your local NWS office at: https://www.weather.gov/tfx |