What is today's weather forecast for Sweet Grass, MT?

Today's forecast for Sweet Grass shows a low of 16 degrees Fahrenheit. Mostly cloudy, with a low around 16.

What is the 7-day weather forecast for Sweet Grass, MT?

The 7-day forecast for Sweet Grass shows highs from 14 to 34 degrees and lows from -2 to 19 degrees Fahrenheit. Expect precipitation on 5 days with chances of 20% or higher.

Will it rain in Sweet Grass, MT this week?

Yes, rain is possible in Sweet Grass this week. Precipitation chances: Thursday (80% chance), Friday (80% chance), Saturday (50% chance), Monday (50% chance), Tuesday (50% chance).

How accurate is the Sweet Grass weather forecast?

WeatherForYou provides highly accurate Sweet Grass forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Sweet Grass, MT Weather Forecast and Current Conditions

WEATHER ALERTS - Winter Storm Watch

Current Conditions From Nearby Station

Switch to Metric Units

13°F
Feels Like 3°F

Humidity 87% Dew Point 10°F Wind S 7 MPH Barometer 30.15 in.

Report from a NOAA weather station 9 mi. NNW of central Sweet Grass
at 6:00 PM Tue, Nov 25, 2025

Point Forecast at a Glance

TueNov 25

WedNov 26

ThuNov 27

40%

FriNov 28

80%

SatNov 29

50%

-2

SunNov 30

MonDec 1

7-Day Temperature Trend

Week Ahead Summary

High temperatures drop from 34°F to a low of 14°F, then recover to 29°F by week's end. Unsettled weather expected with snow likely on at least 4 days.

Climate Context

This week's forecast shows temperatures running 12°F below the historical average for November-December. Normal highs for this period are around 37°F with lows around 15°F.

This Date in Weather History

1983 - The Great Thanksgiving Weekend Blizzard hit Denver, CO. The storm produced 21.5 inches of snow in 37 hours, closing Stapleton Airport for 24 hours. The snow and wind closed interstate highways around Denver. Visibility at Limon CO was down to zero for 24 hours.

Sweet Grass, MT 7 Day Weather Forecast Details

Tuesday Nov 25

Night: Mostly cloudy, with a low around 16. South wind 6 to 10 mph.

Wednesday Nov 26

Day: Mostly cloudy, then gradually becoming sunny, with a high near 34. South southwest wind 5 to 7 mph becoming north in the afternoon.

Night: Mostly cloudy, with a low around 14. Southwest wind 3 to 6 mph.

Thursday Nov 27

Day: A 40 percent chance of snow after 11am. Cloudy, with a high near 29. Southwest wind around 6 mph becoming southeast in the afternoon. New snow accumulation of less than a half inch possible.

Night: Snow. Patchy blowing snow after 2am. Low around 11. North northwest wind 6 to 11 mph increasing to 13 to 18 mph after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New snow accumulation of 2 to 4 inches possible.

Friday Nov 28

Day: Snow. High near 16. North northwest wind 16 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

Night: A 30 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 0. North northwest wind around 9 mph becoming southwest after midnight. New snow accumulation of less than a half inch possible.

Saturday Nov 29

Day: A slight chance of snow. Partly sunny, with a high near 14. South southwest wind around 8 mph.

Night: Mostly cloudy, with a low around -2.

Sunday Nov 30

Day: Partly sunny, with a high near 22.

Night: Mostly cloudy, with a low around 9.

Monday Dec 1

Day: Partly sunny, with a high near 29.

Night: A slight chance of snow. Mostly cloudy, with a low around 19.

Tuesday Dec 2

Day: A chance of snow. Mostly cloudy, with a high near 34.

About Sweet Grass, MT

Sweet Grass is a census-designated place and unincorporated community in Toole County, Montana, United States, on the Canada–US border. It is the northern terminus of Interstate 15, an important route connecting western Canada, the western United States, and Mexico. The population was 65 according to the 2020 census. In 2004, a joint border facility opened at the Sweetgrass port of entry and Coutts, Alberta, housing both Canadian and American federal authorities. Fire service is provided through the volunteer fire department in Coutts. It is 34mi to Shelby,108mi to Havre and 174 to Missoula.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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