Monthly outlook for Big Sky, MT: average high 37°, average low 21.2°. That is 3.3° above the climate normal for November. Precipitation is expected on 6 days (about 1.0 inches), against a normal of 6 days and 1.1 inches. The warmest day looks like 16 November (42.6°), the coolest 19 November (13.8°).
37°/21.2°
Average high / low
+3.3°
Above normal
6 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
35.9°
32.8°
+1.7°
25 November – 4 December
38.7°
28.4°
+5.7°
5 December – 14 December
at normal
26.5°
—
November records over 66 years
60.1°3 November 1962All-time high
-25.1°25 November 1993All-time low
Mon, 1643° / 24°0
43 °
Big Sky, Monday, 16 November
Overcast. High 43°, low 24°.
Pressure29.97 inHg
Wind6.2 mph S
Humidity69%
Visibility6.2 mi
Dew point24°
Tue, 1739° / 29°0.37
39 °
Big Sky, Tuesday, 17 November
Snow. High 39°, low 29°.
Pressure29.71 inHg
Wind7 mph S
Humidity79%
Visibility6.2 mi
Dew point29°
Wed, 1829° / 14°0.09
29 °
Big Sky, Wednesday, 18 November
Snow. High 29°, low 14°.
Pressure30.06 inHg
Wind5.4 mph SW
Humidity90%
Visibility6.2 mi
Dew point18°
Thu, 1932° / 14°0.23
32 °
Big Sky, Thursday, 19 November
Snow. High 32°, low 14°.
Pressure30.06 inHg
Wind4.7 mph SE
Humidity95%
Visibility—
Dew point25°
Fri, 2027° / 22°0.13
27 °
Big Sky, Friday, 20 November
Light snow. High 27°, low 22°.
Pressure29.91 inHg
Wind3.8 mph NE
Humidity98%
Visibility—
Dew point24°
Sat, 2133° / 14°0.02
33 °
Big Sky, Saturday, 21 November
Light snow. High 33°, low 14°.
Pressure30.21 inHg
Wind5.9 mph SE
Humidity78%
Visibility—
Dew point23°
Sun, 2239° / 19°0
39 °
Big Sky, Sunday, 22 November
Overcast. High 39°, low 19°.
Pressure30.09 inHg
Wind5.9 mph SE
Humidity77%
Visibility—
Dew point27°
Mon, 2337° / 19°0
37 °
Big Sky, Monday, 23 November
Mostly clear. High 37°, low 19°.
Pressure30.12 inHg
Wind7.5 mph SE
Humidity79%
Visibility—
Dew point27°
Tue, 2439° / 24°0
39 °
Big Sky, Tuesday, 24 November
Overcast. High 39°, low 24°.
Pressure29.97 inHg
Wind8.5 mph S
Humidity77%
Visibility—
Dew point29°
Wed, 2540° / 28°0.05
40 °
Big Sky, Wednesday, 25 November
Light snow. High 40°, low 28°.
Pressure29.85 inHg
Wind7.6 mph S
Humidity76%
Visibility—
Dew point32°
Thu, 2636° / 26°0.07
36 °
Big Sky, Thursday, 26 November
Light snow. High 36°, low 26°.
Pressure30.00 inHg
Wind5 mph N
Humidity91%
Visibility—
Dew point32°
Fri, 2736° / 19°0
36 °
Big Sky, Friday, 27 November
Partly cloudy. High 36°, low 19°.
Pressure30.36 inHg
Wind3.6 mph NE
Humidity77%
Visibility—
Dew point25°
Sat, 2840° / 20°0
40 °
Big Sky, Saturday, 28 November
Clear. High 40°, low 20°.
Pressure30.09 inHg
Wind3.9 mph NW
Humidity51%
Visibility—
Dew point19°
Sun, 2940° / 20°0
40 °
Big Sky, Sunday, 29 November
Clear. High 40°, low 20°.
Pressure30.15 inHg
Wind4 mph SE
Humidity52%
Visibility—
Dew point19°
Mon, 3041° / 23°0
41 °
Big Sky, Monday, 30 November
Clear. High 41°, low 23°.
Pressure30.09 inHg
Wind3.8 mph S
Humidity55%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0128° / 12°0.06
28 °
Big Sky, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high28°
Average low12°
Average precipitation0.06 in
Chance of precipitation48%
Record high47° (2021)
Record low-15° (1985)
Wed, 0229° / 13°0.09
29 °
Big Sky, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high29°
Average low13°
Average precipitation0.09 in
Chance of precipitation48%
Record high46° (2024)
Record low-14° (2009)
Thu, 0329° / 12°0.07
29 °
Big Sky, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high29°
Average low12°
Average precipitation0.07 in
Chance of precipitation42%
Record high45° (2024)
Record low-18° (2009)
Fri, 0428° / 13°0.07
28 °
Big Sky, Friday, 4 December
Climate normal for this date — 60-year average.
Average high28°
Average low13°
Average precipitation0.07 in
Chance of precipitation42%
Record high46° (1987)
Record low-19° (2013)
Sat, 0527° / 11°0.07
27 °
Big Sky, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.07 in
Chance of precipitation40%
Record high47° (2020)
Record low-25° (1972)
Sun, 0627° / 10°0.06
27 °
Big Sky, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high27°
Average low10°
Average precipitation0.06 in
Chance of precipitation40%
Record high44° (2023)
Record low-31° (2013)
Mon, 0726° / 11°0.06
26 °
Big Sky, Monday, 7 December
Climate normal for this date — 60-year average.
Average high26°
Average low11°
Average precipitation0.06 in
Chance of precipitation40%
Record high46° (2024)
Record low-23° (2005)
Tue, 0826° / 10°0.05
26 °
Big Sky, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high26°
Average low10°
Average precipitation0.05 in
Chance of precipitation37%
Record high47° (2020)
Record low-21° (1978)
Wed, 0926° / 10°0.05
26 °
Big Sky, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high26°
Average low10°
Average precipitation0.05 in
Chance of precipitation35%
Record high45° (1981)
Record low-21° (2009)
Thu, 1028° / 12°0.05
28 °
Big Sky, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high28°
Average low12°
Average precipitation0.05 in
Chance of precipitation37%
Record high43° (1990)
Record low-25° (1972)
Fri, 1127° / 11°0.05
27 °
Big Sky, Friday, 11 December
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.05 in
Chance of precipitation35%
Record high44° (2025)
Record low-23° (1961)
Sat, 1227° / 11°0.08
27 °
Big Sky, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.08 in
Chance of precipitation48%
Record high46° (2014)
Record low-19° (1961)
Sun, 1327° / 11°0.07
27 °
Big Sky, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high27°
Average low11°
Average precipitation0.07 in
Chance of precipitation45%
Record high44° (2025)
Record low-9° (2008)
Mon, 1426° / 11°0.07
26 °
Big Sky, Monday, 14 December
Climate normal for this date — 60-year average.
Average high26°
Average low11°
Average precipitation0.07 in
Chance of precipitation42%
Record high49° (2025)
Record low-24° (1967)
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 Big Sky, 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 Big Sky, 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.