| NWS Forecast for: Northern Sweet Grass Issued by: National Weather Service Billings, MT Last Update: 350 PM MDT Tue Oct 13 2026 |  |
| Tonight: Mostly clear. Lows in the upper 20s. West winds 5 to 10 mph. Wednesday: Sunny, warmer. Highs in the lower 60s. West winds 5 to 15 mph. Wednesday Night: Mostly cloudy. Lows in the lower 30s. West winds 5 to 15 mph. Thursday: Decreasing clouds. Highs in the lower 60s. West winds 5 to 10 mph in the morning shifting to the southeast in the afternoon. Thursday Night: Mostly clear. Lows in the lower 30s. East winds 5 to 10 mph in the evening becoming light overnight. Friday: Sunny, warmer. Highs in the lower 70s. Friday Night: Mostly clear. Lows around 40. Saturday: Sunny. Highs in the mid 70s. Saturday Night: Partly cloudy. Lows around 40. Sunday: Sunny. Highs in the mid 60s. Sunday Night: Mostly clear. Lows around 40. Monday: Sunny. Highs in the lower 70s. Monday Night: Partly cloudy. A 20 percent chance of rain showers overnight. Lows in the lower 40s. Tuesday: Partly sunny with a 40 percent chance of rain showers. Cooler. Highs around 60. | |
| Zone Forecast: Northern Sweet Grass | |
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