Monthly outlook for Sweet Grass, MT: average high 43.1°, average low 30.5°. That is 2.6° above the climate normal for November. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 11 November (61.9°), the coolest 25 November (10.6°).
43.1°/30.5°
Average high / low
+2.6°
Above normal
3 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
51.7°
40.1°
+6.4°
20 November – 29 November
28.9°
34.7°
-3.2°
30 November – 9 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).
Wed, 1162° / 43°0
62 °
Sweet Grass, Wednesday, 11 November
Overcast. High 62°, low 43°.
Pressure30.00 inHg
Wind9.5 mph S
Humidity47%
Visibility6.2 mi
Dew point40°
Thu, 1260° / 44°0
60 °
Sweet Grass, Thursday, 12 November
Overcast. High 60°, low 44°.
Pressure29.85 inHg
Wind9.3 mph S
Humidity42%
Visibility6.2 mi
Dew point35°
Fri, 1353° / 38°0
53 °
Sweet Grass, Friday, 13 November
Overcast. High 53°, low 38°.
Pressure29.59 inHg
Wind11 mph S
Humidity48%
Visibility6.2 mi
Dew point30°
Sat, 1454° / 36°0
54 °
Sweet Grass, Saturday, 14 November
Overcast. High 54°, low 36°.
Pressure29.50 inHg
Wind7.1 mph S
Humidity50%
Visibility6.2 mi
Dew point32°
Sun, 1551° / 34°0
51 °
Sweet Grass, Sunday, 15 November
Clear. High 51°, low 34°.
Pressure29.83 inHg
Wind11.7 mph S
Humidity56%
Visibility—
Dew point29°
Mon, 1655° / 38°0
55 °
Sweet Grass, Monday, 16 November
Mostly clear. High 55°, low 38°.
Pressure29.80 inHg
Wind15.7 mph SW
Humidity47%
Visibility—
Dew point29°
Tue, 1750° / 39°0
50 °
Sweet Grass, Tuesday, 17 November
Overcast. High 50°, low 39°.
Pressure29.77 inHg
Wind7.9 mph SW
Humidity58%
Visibility—
Dew point32°
Wed, 1839° / 35°0
39 °
Sweet Grass, Wednesday, 18 November
Overcast. High 39°, low 35°.
Pressure29.85 inHg
Wind10.7 mph N
Humidity69%
Visibility—
Dew point28°
Thu, 1937° / 29°0.11
37 °
Sweet Grass, Thursday, 19 November
Snow. High 37°, low 29°.
Pressure30.15 inHg
Wind16.3 mph NW
Humidity91%
Visibility—
Dew point30°
Fri, 2035° / 27°0
35 °
Sweet Grass, Friday, 20 November
Overcast. High 35°, low 27°.
Pressure30.27 inHg
Wind6.1 mph N
Humidity63%
Visibility—
Dew point21°
Sat, 2135° / 24°0
35 °
Sweet Grass, Saturday, 21 November
Clear. High 35°, low 24°.
Pressure30.47 inHg
Wind13.9 mph S
Humidity66%
Visibility—
Dew point20°
Sun, 2241° / 25°0.04
41 °
Sweet Grass, Sunday, 22 November
Light snow. High 41°, low 25°.
Pressure29.85 inHg
Wind24.7 mph NW
Humidity48%
Visibility—
Dew point17°
Mon, 2324° / 14°0.09
24 °
Sweet Grass, Monday, 23 November
Light snow. High 24°, low 14°.
Pressure30.45 inHg
Wind21.5 mph NW
Humidity68%
Visibility—
Dew point11°
Tue, 2417° / 11°0
17 °
Sweet Grass, Tuesday, 24 November
Overcast. High 17°, low 11°.
Pressure30.62 inHg
Wind13.5 mph NW
Humidity75%
Visibility—
Dew point9°
Wed, 2521° / 11°0
21 °
Sweet Grass, Wednesday, 25 November
Partly cloudy. High 21°, low 11°.
Pressure30.27 inHg
Wind7.2 mph NW
Humidity66%
Visibility—
Dew point8°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2633° / 19°0.04
33 °
Sweet Grass, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.04 in
Chance of precipitation27%
Record high57° (1998)
Record low-23° (1985)
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)
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.