As of 05:53 MST

Weather in Sweet Grass, MT

39°

Sweet Grass, Wednesday, 11 November, 05:53

Mostly clear. Feels like 34°. High 63°, low 39°.

Pressure30.09 inHg

Wind6.9 mph S

Humidity87%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Monthly outlook for Sweet Grass, MT: average high 46.2°, average low 32.4°. That is 4.6° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 11 November (63.5°), the coolest 22 November (17.2°).

46.2°/32.4°

Average high / low

+4.6°

Above normal

0 / 3

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
11 November – 20 November	51°	39.8°	+6.2°
21 November – 30 November	38.3°	34.3°	+2.2°
1 December – 10 December	at normal	31.7°	—

November records over 66 years

68.5°2 November 1981All-time high

-29°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Sunburst (8 mi).

Thu, 1263° / 44°

63 °

Sweet Grass, Thursday, 12 November

Overcast. High 63°, low 44°.

Pressure29.85 inHg

Wind10.3 mph S

Humidity43%

Visibility6.2 mi

Dew point36°

Fri, 1354° / 39°

54 °

Sweet Grass, Friday, 13 November

Overcast. High 54°, low 39°.

Pressure29.65 inHg

Wind8.3 mph S

Humidity48%

Visibility6.2 mi

Dew point32°

Sat, 1456° / 36°

56 °

Sweet Grass, Saturday, 14 November

Overcast. High 56°, low 36°.

Pressure29.56 inHg

Wind8.6 mph S

Humidity51%

Visibility6.2 mi

Dew point33°

Sun, 1551° / 35°

51 °

Sweet Grass, Sunday, 15 November

Mostly clear. High 51°, low 35°.

Pressure29.91 inHg

Wind11.9 mph SW

Humidity54%

Visibility—

Dew point29°

Mon, 1654° / 38°

54 °

Sweet Grass, Monday, 16 November

Overcast. High 54°, low 38°.

Pressure29.83 inHg

Wind11.9 mph SW

Humidity47%

Visibility—

Dew point29°

Tue, 1748° / 35°

48 °

Sweet Grass, Tuesday, 17 November

Overcast. High 48°, low 35°.

Pressure29.77 inHg

Wind13.8 mph SW

Humidity50%

Visibility—

Dew point27°

Wed, 1843° / 31°

43 °

Sweet Grass, Wednesday, 18 November

Clear. High 43°, low 31°.

Pressure29.74 inHg

Wind7.8 mph SW

Humidity55%

Visibility—

Dew point24°

Thu, 1938° / 28°

38 °

Sweet Grass, Thursday, 19 November

Overcast. High 38°, low 28°.

Pressure30.09 inHg

Wind10.2 mph N

Humidity57%

Visibility—

Dew point22°

Fri, 2040° / 26°

40 °

Sweet Grass, Friday, 20 November

Overcast. High 40°, low 26°.

Pressure30.42 inHg

Wind19.2 mph NW

Humidity59%

Visibility—

Dew point21°

Sat, 2125° / 20°

0.04

25 °

Sweet Grass, Saturday, 21 November

Light snow. High 25°, low 20°.

Pressure30.83 inHg

Wind20.3 mph N

Humidity74%

Visibility—

Dew point16°

Sun, 2228° / 17°

28 °

Sweet Grass, Sunday, 22 November

Partly cloudy. High 28°, low 17°.

Pressure30.62 inHg

Wind18.9 mph S

Humidity68%

Visibility—

Dew point14°

Mon, 2343° / 28°

43 °

Sweet Grass, Monday, 23 November

Overcast. High 43°, low 28°.

Pressure30.12 inHg

Wind11 mph S

Humidity47%

Visibility—

Dew point17°

Tue, 2444° / 35°

44 °

Sweet Grass, Tuesday, 24 November

Overcast. High 44°, low 35°.

Pressure29.85 inHg

Wind14.8 mph SW

Humidity53%

Visibility—

Dew point26°

Wed, 2545° / 32°

45 °

Sweet Grass, Wednesday, 25 November

Partly cloudy. High 45°, low 32°.

Pressure29.94 inHg

Wind10.8 mph NW

Humidity74%

Visibility—

Dew point33°

Thu, 2644° / 35°

0.01

44 °

Sweet Grass, Thursday, 26 November

Light rain. High 44°, low 35°.

Pressure29.80 inHg

Wind24.8 mph SW

Humidity68%

Visibility—

Dew point33°

From day 17 onward the outlook is built from 60-year climate statistics

Fri, 2733° / 18°

0.03

33 °

Sweet Grass, Friday, 27 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.03 in

Chance of precipitation25%

Record high53° (2011)

Record low-28° (1985)

Sat, 2834° / 19°

0.04

34 °

Sweet Grass, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high34°

Average low19°

Average precipitation0.04 in

Chance of precipitation18%

Record high56° (2021)

Record low-26° (1985)

Sun, 2933° / 18°

0.02

33 °

Sweet Grass, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.02 in

Chance of precipitation17%

Record high52° (2021)

Record low-19° (1985)

Mon, 3033° / 18°

0.02

33 °

Sweet Grass, Monday, 30 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.02 in

Chance of precipitation17%

Record high54° (1969)

Record low-16° (2014)

Tue, 0132° / 17°

0.02

32 °

Sweet Grass, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high32°

Average low17°

Average precipitation0.02 in

Chance of precipitation17%

Record high58° (2021)

Record low-24° (1985)

Wed, 0232° / 17°

0.04

32 °

Sweet Grass, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high32°

Average low17°

Average precipitation0.04 in

Chance of precipitation27%

Record high53° (2021)

Record low-30° (1985)

Thu, 0333° / 17°

0.02

33 °

Sweet Grass, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.02 in

Chance of precipitation15%

Record high54° (1987)

Record low-18° (1972)

Fri, 0433° / 16°

0.02

33 °

Sweet Grass, Friday, 4 December

Climate normal for this date — 60-year average.

Average high33°

Average low16°

Average precipitation0.02 in

Chance of precipitation23%

Record high53° (1989)

Record low-26° (1972)

Sat, 0531° / 15°

0.03

31 °

Sweet Grass, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.03 in

Chance of precipitation15%

Record high56° (2023)

Record low-24° (2013)

Sun, 0630° / 15°

0.03

30 °

Sweet Grass, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high30°

Average low15°

Average precipitation0.03 in

Chance of precipitation18%

Record high54° (1987)

Record low-28° (1972)

Mon, 0730° / 14°

0.01

30 °

Sweet Grass, Monday, 7 December

Climate normal for this date — 60-year average.

Average high30°

Average low14°

Average precipitation0.01 in

Chance of precipitation13%

Record high50° (2017)

Record low-37° (2013)

Tue, 0831° / 15°

0.02

31 °

Sweet Grass, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.02 in

Chance of precipitation18%

Record high54° (2020)

Record low-33° (1972)

Wed, 0932° / 16°

0.02

32 °

Sweet Grass, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high32°

Average low16°

Average precipitation0.02 in

Chance of precipitation12%

Record high54° (1979)

Record low-34° (1977)

Thu, 1033° / 17°

0.03

33 °

Sweet Grass, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.03 in

Chance of precipitation20%

Record high53° (2014)

Record low-21° (1961)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Sweet Grass, MT are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Sweet Grass, MT since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.