Sweet Grass, MT weather
Today, hourly and 7-day forecast, sunrise and sunset, and the normal climate month by month
Weather in Sweet Grass now
Loading the National Weather Service forecast…
Sweet Grass weather by the hour
Sweet Grass weather for the next 7 days
Source: National Weather Service (NOAA) · forecast for the coordinates of Sweet Grass.
This week in Sweet Grass
Sunrise, sunset and moon in Sweet Grass
What is the weather usually like in Sweet Grass?
Köppen climate classification, calculated from the 1991–2020 normals
- Julywarmest month · 82°F average high
- Januarycoldest month · 10°F average low
- 14.3 inprecipitation per year · 364 mm
Average high and low temperature (°F)
Average precipitation (inches)
Best time to visit Sweet Grass: June to September, with mild temperatures and fewer rainy days.
Source: NOAA NCEI U.S. Climate Normals 1991–2020, station SWEETGRASS, MT US (USC00248093), adjusted for the elevation of Sweet Grass.
Sweet Grass weather month by month
Sunrise and sunset in Sweet Grass through the year
| Month | Sunrise | Sunset | Daylight |
|---|---|---|---|
| January | 8:14 AM | 5:00 PM | 8 h 46 min |
| February | 7:33 AM | 5:50 PM | 10 h 16 min |
| March | 7:38 AM | 7:34 PM | 11 h 55 min |
| April | 6:34 AM | 8:21 PM | 13 h 47 min |
| May | 5:43 AM | 9:05 PM | 15 h 22 min |
| June | 5:21 AM | 9:35 PM | 16 h 14 min |
| July | 5:38 AM | 9:29 PM | 15 h 50 min |
| August | 6:19 AM | 8:45 PM | 14 h 26 min |
| September | 7:03 AM | 7:42 PM | 12 h 39 min |
| October | 7:47 AM | 6:39 PM | 10 h 52 min |
| November | 7:36 AM | 4:48 PM | 9 h 12 min |
| December | 8:13 AM | 4:32 PM | 8 h 19 min |
Times for the 15th of each month, local time (America/Denver).
What is the weather like in Sweet Grass?
Sweet Grass has a cold semi-arid climate. The warmest month is July, with an average high of 82°F (28°C), and the coldest is January, with average lows of 10°F (-12°C).
It gets about 14.3 inches (364 mm) of precipitation a year. The wettest month is June and the driest is February.
The best time to visit Sweet Grass is June to September. At 3,497 ft of elevation, nights are mild most of the year. The live forecast on this page comes from the National Weather Service and the climate averages from NOAA’s 1991–2020 U.S. Climate Normals.
More about Sweet Grass
Weather in towns near Sweet Grass
Questions about the weather in Sweet Grass
What is the hottest month in Sweet Grass?
July, with an average high of 82°F (28°C).
What is the coldest month in Sweet Grass?
January, with an average low of 10°F (-12°C).
How much does it rain in Sweet Grass?
About 14.3 inches (364 mm) a year; the wettest month is June.
Does it snow in Sweet Grass?
Snow is very rare or not recorded at the nearest weather station.
When is the best time to visit Sweet Grass?
June to September, when temperatures are most pleasant and rainy days are fewer.
What climate does Sweet Grass have?
Cold semi-arid (Köppen BSk).
What is the weather like in Sweet Grass in November?
Highs average 43°F and lows 21°F, with about 0.7 inches of precipitation.
What time is sunrise in Sweet Grass?
Around 7:36 AM in mid-November, and sunset around 4:48 PM. Today’s exact times are shown above.
Where does this Sweet Grass weather forecast come from?
From the National Weather Service (NOAA), the official U.S. weather agency, for the exact coordinates of Sweet Grass.
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