| NWS Forecast for: Ruby Mountains and Southern Beaverhead Mountains Issued by: National Weather Service Great Falls, MT Last Update: 1232 PM MDT Sun May 31 2026 |  |
| Rest Of Today: Mostly cloudy. Chance of rain showers, slight chance of thunderstorms and snow early in the afternoon, then chance of rain showers and slight chance of thunderstorms late in the afternoon. Near steady temperature in the lower 40s. Northwest winds 10 to 15 mph. Chance of precipitation 50 percent. Tonight: Mostly cloudy with a 20 percent chance of rain in the evening, then partly cloudy after midnight. Lows in the lower 30s. Northwest winds up to 15 mph. Monday: Not as cool. Mostly sunny. A 50 percent chance of thunderstorms in the afternoon. Highs 51 to 59. West winds up to 5 mph increasing to 5 to 15 mph in the afternoon. Monday Night: Mostly cloudy with chance of rain showers and slight chance of thunderstorms in the evening, then partly cloudy after midnight. Lows in the mid 30s. West winds up to 10 mph. Chance of precipitation 50 percent. Tuesday: Mostly sunny. Highs 56 to 64. South winds up to 10 mph shifting to the southwest with gusts to around 30 mph in the afternoon. Tuesday Night: Mostly cloudy in the evening then clearing. Lows in the upper 30s. Wednesday: Sunny. Highs 62 to 70. Wednesday Night: Partly cloudy in the evening then becoming mostly cloudy. Lows in the lower 40s. Thursday: Partly sunny. Slight chance of rain in the morning, then chance of rain showers and slight chance of thunderstorms in the afternoon. Highs 60 to 68. Chance of precipitation 40 percent. Thursday Night: Mostly clear. A 20 percent chance of rain in the evening. Lows in the upper 30s. Friday: Sunny. Highs 63 to 71. Friday Night: Partly cloudy. Lows in the lower 40s. Saturday: Windy, sunny. Highs 65 to 73. | |
| Zone Forecast: Ruby Mountains and Southern Beaverhead Mountains | |
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