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Sweet Grass Weather Forecast
Sweet Grass, MT Weather Forecast Date: 336 AM MDT Mon Sep 14 2026
Weather forecast for Sweet Grass, MT
Today Hi: 59°FHi: 15°C Lo: 40°F Lo: 4°C |
Today... Windy. Mostly cloudy. Chance of rain showers until late afternoon, then slight chance of rain showers late in the afternoon. Highs in the upper 50s. Northwest winds 20 to 30 mph with gusts to around 50 mph. Chance of showers 50%. |
Tue Hi: 55°FHi: 13°C Lo: 41°F Lo: 5°C |
Tuesday... Cloudy. A 20% chance of rain showers in the morning. Highs in the mid 50s. East winds up to 10 mph. |
Wed Hi: 59°FHi: 15°C Lo: 41°F Lo: 5°C |
Wednesday... Partly sunny in the morning then clearing. Highs in the upper 50s. North winds 5 to 10 mph shifting to the south in the afternoon. |
Thu Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Thursday... Mostly clear. Lows in the lower 40s. Highs in the upper 60s. |
| Thu Hi: 69°FHi: 21°C Lo: 41°F Lo: 5°C |
Thursday... Mostly clear. Lows in the lower 40s. Highs in the upper 60s. |
| Fri Hi: 65°FHi: 18°C Lo: 49°F Lo: 9°C |
Friday... Mostly sunny. Highs in the mid 60s. |
| Sat Hi: 69°FHi: 21°C Lo: 49°F Lo: 9°C |
Saturday... Mostly sunny. Highs in the upper 60s. |
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