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Plan your week in Sweet Grass County with our detailed 7-Day Weather Forecast. Access reliable daily temperature highs and lows, rain chances, and weekly weather pattern summaries.

Sweet Grass County 7-Day Weather Forecast

Thursday, Oct 22, 2026

Daytime
68°F

Partly Cloudy

Feels like 68°F

Humidity

42%

Wind Speed

8.9 mph

Precipitation

0 in

Pressure

1007 hPa

UV Index

0

Visibility

10 mi

Cloud Cover

61%

Dew Point

59°F

7-Day Weather Forecast

Today

Oct 22

Partly Cloudy
68°H
68°L
0%

Fri

Oct 23

Partly Cloudy
63°H
40°L
81%

Sat

Oct 24

Partly Cloudy
50°H
26°L
54%

Sun

Oct 25

Partly Cloudy
46°H
29°L
0%

Mon

Oct 26

Partly Cloudy
43°H
29°L
0%

Tue

Oct 27

Partly Cloudy
43°H
36°L
0%

Wed

Oct 28

Partly Cloudy
45°H
37°L
0%

24-Hour Forecast

11 PM

68°

0%

12 AM

63°

0%

1 AM

57°

0%

2 AM

55°

0%

3 AM

53°

0%

4 AM

53°

0%

5 AM

52°

0%

6 AM

50°

0%

7 AM

48°

0%

8 AM

47°

0%

9 AM

45°

0%

10 AM

46°

0%

11 AM

46°

12%

12 PM

46°

0%

1 PM

46°

36%

2 PM

46°

30%

3 PM

49°

3%

4 PM

52°

72%

5 PM

55°

57%

6 PM

52°

12%

7 PM

53°

18%

8 PM

51°

36%

9 PM

46°

18%

10 PM

44°

21%

Air Quality (AQI)

Air quality sensors are offline for this coordinate.

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Waxing Gibbous

Waxing Gibbous

Wind Conditions & Storm Tracking

Wind Direction

105.9° ESE

Sustained Wind

8.9 mph

Wind Gusts

8.9 mph

7-Day Temp Range

Week's Hottest

68°F

Max Rain Prob

81%

Expected 7-Day Swings

26°
68°

High and low limits expected over the next week.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

Sweet Grass County · 45.81°N, 109.86°W
Radar Page
Coordinates45.8134°N, 109.8636°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)N/AOffline
UV Index0Low Risk
Visibility10 milesClear

Frequently Asked Questions

The 7-day forecast for Sweet Grass County includes comprehensive daily weather summaries, max/min temperatures, and expected rainfall to keep you prepared for the week.

About Sweet Grass County Climate & Weather

Weather forecast for Sweet Grass County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.