| NWS Forecast for: Treasure County Issued by: National Weather Service Billings, MT Last Update: 628 AM MDT Wed May 20 2026 |  |
| Today: Mostly sunny in the morning and early afternoon, then mostly cloudy with scattered rain showers and isolated thunderstorms late in the afternoon. Highs around 70. West winds 5 to 15 mph. Chance of precipitation 50 percent. Tonight: Slight chance of thunderstorms early in the evening. Chance of rain showers in the evening, then rain showers overnight. Lows in the mid 40s. Northwest winds 5 to 15 mph. Chance of precipitation 80 percent. Thursday: Rain showers likely early in the morning, then chance of rain showers in the late morning and afternoon. Cooler. Highs in the upper 50s. North winds 5 to 15 mph. Chance of precipitation 60 percent. Thursday Night: Mostly cloudy. Lows in the upper 30s. Southwest winds 5 to 10 mph. Friday: Sunny. Highs in the upper 60s. West winds 5 to 10 mph. Friday Night: Partly cloudy. Lows in the mid 40s. Saturday: Sunny. Highs in the upper 70s. Saturday Night: Partly cloudy. Lows in the lower 50s. Sunday: Sunny. Highs in the mid 80s. Sunday Night: Mostly clear. Lows in the mid 50s. Memorial Day: Sunny. Highs in the upper 80s. Monday Night: Partly cloudy. Lows in the upper 50s. Tuesday: Mostly sunny. Highs in the lower 80s. | |
| Zone Forecast: Treasure County | |
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