As of 13:32 MDT

Weather in Big Sky, MT

37°Current weather

Big Sky, Tuesday, 27 October, 13:32

Partly cloudy. Feels like 31°. High 37°, low 24°.

Pressure29.94 inHg
Wind8.3 mph SW
Humidity70%
Visibility4.2 mi
Dew point29°

Monthly outlook for Big Sky, MT: average high 40.9°, average low 24.3°. That is 1.1° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 7 November (48.8°), the coolest 29 October (15.4°).

40.9°/24.3°
Average high / low
+1.1°
Above normal
5 / 6
Wet days / normal
1.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
27 October – 5 November39°40.1°-0.6°
6 November – 15 November44.2°36.5°+4.3°
16 November – 25 Novemberat normal32.2°—

October records over 66 years

75.6°3 October 2010All-time high
-18.6°29 October 1971All-time low
Wed, 2832° / 19°0Mostly clear
32 °Mostly clear

Big Sky, Wednesday, 28 October

Mostly clear. High 32°, low 19°.

Pressure30.03 inHg
Wind6.7 mph SW
Humidity90%
Visibility5.8 mi
Dew point20°
Thu, 2941° / 15°0Overcast
41 °Overcast

Big Sky, Thursday, 29 October

Overcast. High 41°, low 15°.

Pressure30.03 inHg
Wind4.3 mph SW
Humidity77%
Visibility6.2 mi
Dew point21°
Fri, 3044° / 27°0.01Light snow
44 °Light snow

Big Sky, Friday, 30 October

Light snow. High 44°, low 27°.

Pressure29.91 inHg
Wind6.7 mph S
Humidity67%
Visibility6.2 mi
Dew point30°
Sat, 3140° / 31°0.13Snow
40 °Snow

Big Sky, Saturday, 31 October

Snow. High 40°, low 31°.

Pressure29.94 inHg
Wind1.2 mph S
Humidity88%
Visibility6.2 mi
Dew point34°
Sun, 0138° / 29°0.47Snow
38 °Snow

Big Sky, Sunday, 1 November

Snow. High 38°, low 29°.

Pressure29.83 inHg
Wind5.2 mph N
Humidity83%
Visibility—
Dew point33°
Mon, 0232° / 16°0.04Light snow
32 °Light snow

Big Sky, Monday, 2 November

Light snow. High 32°, low 16°.

Pressure30.27 inHg
Wind5.7 mph N
Humidity76%
Visibility—
Dew point23°
Tue, 0340° / 15°0Clear
40 °Clear

Big Sky, Tuesday, 3 November

Clear. High 40°, low 15°.

Pressure30.27 inHg
Wind3.9 mph SE
Humidity60%
Visibility—
Dew point22°
Wed, 0441° / 20°0Overcast
41 °Overcast

Big Sky, Wednesday, 4 November

Overcast. High 41°, low 20°.

Pressure30.03 inHg
Wind4.9 mph S
Humidity62%
Visibility—
Dew point26°
Thu, 0543° / 26°0Overcast
43 °Overcast

Big Sky, Thursday, 5 November

Overcast. High 43°, low 26°.

Pressure30.03 inHg
Wind5.2 mph SE
Humidity69%
Visibility—
Dew point30°
Fri, 0645° / 27°0Overcast
45 °Overcast

Big Sky, Friday, 6 November

Overcast. High 45°, low 27°.

Pressure29.97 inHg
Wind7.3 mph SE
Humidity73%
Visibility—
Dew point33°
Sat, 0749° / 33°0Overcast
49 °Overcast

Big Sky, Saturday, 7 November

Overcast. High 49°, low 33°.

Pressure29.80 inHg
Wind8.7 mph S
Humidity62%
Visibility—
Dew point33°
Sun, 0838° / 24°0.47Snow
38 °Snow

Big Sky, Sunday, 8 November

Snow. High 38°, low 24°.

Pressure30.03 inHg
Wind6.1 mph W
Humidity79%
Visibility—
Dew point31°
Mon, 0942° / 24°0Partly cloudy
42 °Partly cloudy

Big Sky, Monday, 9 November

Partly cloudy. High 42°, low 24°.

Pressure30.27 inHg
Wind5.1 mph SE
Humidity75%
Visibility—
Dew point30°
Tue, 1045° / 29°0Overcast
45 °Overcast

Big Sky, Tuesday, 10 November

Overcast. High 45°, low 29°.

Pressure30.09 inHg
Wind5.5 mph SE
Humidity62%
Visibility—
Dew point29°
Wed, 1146° / 31°0Light snow
46 °Light snow

Big Sky, Wednesday, 11 November

Light snow. High 46°, low 31°.

Pressure29.88 inHg
Wind5 mph SE
Humidity64%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1237° / 18°0.08Climate normal
37 °Climate normal

Big Sky, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high37°
Average low18°
Average precipitation0.08 in
Chance of precipitation32%
Record high57° (1999)
Record low-14° (2000)
Fri, 1336° / 19°0.07Climate normal
36 °Climate normal

Big Sky, Friday, 13 November

Climate normal for this date — 60-year average.

Average high36°
Average low19°
Average precipitation0.07 in
Chance of precipitation42%
Record high56° (1999)
Record low-14° (2014)
Sat, 1435° / 17°0.09Climate normal
35 °Climate normal

Big Sky, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high35°
Average low17°
Average precipitation0.09 in
Chance of precipitation42%
Record high58° (1999)
Record low-9° (1978)
Sun, 1535° / 16°0.04Climate normal
35 °Climate normal

Big Sky, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high35°
Average low16°
Average precipitation0.04 in
Chance of precipitation27%
Record high58° (1999)
Record low-12° (2014)
Mon, 1635° / 18°0.07Climate normal
35 °Climate normal

Big Sky, Monday, 16 November

Climate normal for this date — 60-year average.

Average high35°
Average low18°
Average precipitation0.07 in
Chance of precipitation33%
Record high52° (1999)
Record low-13° (2014)
Tue, 1734° / 17°0.06Climate normal
34 °Climate normal

Big Sky, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high34°
Average low17°
Average precipitation0.06 in
Chance of precipitation43%
Record high53° (1999)
Record low-7° (2014)
Wed, 1833° / 16°0.08Climate normal
33 °Climate normal

Big Sky, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high33°
Average low16°
Average precipitation0.08 in
Chance of precipitation45%
Record high49° (2008)
Record low-8° (1969)
Thu, 1933° / 14°0.07Climate normal
33 °Climate normal

Big Sky, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high33°
Average low14°
Average precipitation0.07 in
Chance of precipitation35%
Record high46° (1989)
Record low-5° (1985)
Fri, 2033° / 15°0.07Climate normal
33 °Climate normal

Big Sky, Friday, 20 November

Climate normal for this date — 60-year average.

Average high33°
Average low15°
Average precipitation0.07 in
Chance of precipitation35%
Record high46° (1989)
Record low-13° (1977)
Sat, 2132° / 13°0.04Climate normal
32 °Climate normal

Big Sky, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high32°
Average low13°
Average precipitation0.04 in
Chance of precipitation33%
Record high47° (2002)
Record low-18° (1977)
Sun, 2231° / 13°0.07Climate normal
31 °Climate normal

Big Sky, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high31°
Average low13°
Average precipitation0.07 in
Chance of precipitation43%
Record high46° (2017)
Record low-16° (1970)
Mon, 2331° / 11°0.08Climate normal
31 °Climate normal

Big Sky, Monday, 23 November

Climate normal for this date — 60-year average.

Average high31°
Average low11°
Average precipitation0.08 in
Chance of precipitation40%
Record high46° (1976)
Record low-16° (2003)
Tue, 2430° / 14°0.1Climate normal
30 °Climate normal

Big Sky, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high30°
Average low14°
Average precipitation0.1 in
Chance of precipitation43%
Record high44° (1976)
Record low-17° (1993)
Wed, 2529° / 12°0.11Climate normal
29 °Climate normal

Big Sky, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high29°
Average low12°
Average precipitation0.11 in
Chance of precipitation50%
Record high42° (1960)
Record low-25° (1993)

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.