Sweet Grass has a dry climate
Sweet Grass has cold winters and pleasant summers, with very little rain. A typical July afternoon reaches 80°, a January night drops to 10°. In November, a normal day reaches 41° and a normal night drops to 19°.
Getting the latest forecast from the National Weather Service…
What stands out about Sweet Grass’s weather
Read from 30 years of NOAA records. Each one opens the full story on the Climate page.
Where today sits in Sweet Grass’s year
Typical highs and lows month by month, from 30 years of NOAA records.
Weather talk
Road reports, first frosts and storm memories from neighbors in Sweet Grass.
Your answer becomes a post in Town Square.
Forecast, conditions and alerts: National Weather Service. Climate: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Temperatures and rainfall come from NOAA’s gridded normals for Sweet Grass itself (about a 3-mile square). Snow, frost dates and day counts: the NOAA station at Sweetgrass, MT (1 mi, frost, heat and degree days). Sunrise and sunset are calculated from the town’s position. Normals are 30-year averages, not a forecast.