| NWS Forecast for: Elkhorn and Boulder Mountains Issued by: National Weather Service Great Falls, MT Last Update: 336 AM MDT Thu Jun 18 2026 |  |
| Today: Sunny. Highs 63 to 73. West winds 5 to 15 mph. Gusts up to 25 mph increasing to 35 mph in the afternoon. Tonight: Mostly clear. Lows 37 to 45. North winds 10 to 15 mph with gusts to around 45 mph decreasing to up to 5 mph with gusts to around 25 mph after midnight. Juneteenth: Partly sunny. Highs 67 to 75. East winds up to 10 mph. Friday Night: Partly cloudy. Lows 46 to 52. Northeast winds up to 10 mph shifting to the southeast after midnight. Saturday: Partly sunny. Chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 64 to 74. Southwest winds up to 10 mph. Chance of precipitation 50 percent. Saturday Night: Mostly cloudy with a 20 percent chance of thunderstorms in the evening, then partly cloudy after midnight. Lows 42 to 48. Sunday: Sunny. Highs 63 to 73. Sunday Night: Partly cloudy. Lows 37 to 45. Monday And Monday Night: Mostly clear. Highs 62 to 70. Lows 39 to 45. Tuesday And Tuesday Night: Mostly clear. Highs 70 to 78. Lows 45 to 51. Wednesday: Mostly sunny. A 20 percent chance of thunderstorms in the afternoon. Highs 68 to 78. | |
| Zone Forecast: Elkhorn and Boulder Mountains | |
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