Weather in Big Sky, MT
Big Sky, Friday, 23 October, 16:10
Snow. Feels like 22°. High 44°, low 28°.
Monthly outlook for Big Sky, MT: average high 45.5°, average low 27.4°. That is 2.5° above the climate normal for October. Precipitation is expected on 2 days (about 2.1 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 4 November (57.2°), the coolest 28 October (15.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 23 October – 1 November | 42.9° | 42.2° | +0.4° |
| 2 November – 11 November | 50° | 38° | +6.7° |
| 12 November – 21 November | at normal | 34.3° | — |
October records over 66 years
0
Big Sky, Saturday, 24 October
Clear. High 41°, low 22°.
0
Big Sky, Sunday, 25 October
Mostly clear. High 46°, low 24°.
0Big Sky, Monday, 26 October
Mostly clear. High 46°, low 24°.
0.6Big Sky, Tuesday, 27 October
Snow. High 35°, low 17°.
0
Big Sky, Wednesday, 28 October
Overcast. High 44°, low 16°.
0
Big Sky, Thursday, 29 October
Partly cloudy. High 44°, low 28°.
0Big Sky, Friday, 30 October
Clear. High 45°, low 26°.
0Big Sky, Saturday, 31 October
Overcast. High 43°, low 28°.
0Big Sky, Sunday, 1 November
Overcast. High 43°, low 29°.
0Big Sky, Monday, 2 November
Clear. High 42°, low 25°.
0Big Sky, Tuesday, 3 November
Partly cloudy. High 49°, low 30°.
0Big Sky, Wednesday, 4 November
Overcast. High 57°, low 37°.
0Big Sky, Thursday, 5 November
Clear. High 56°, low 37°.
0Big Sky, Friday, 6 November
Overcast. High 52°, low 35°.
0Big Sky, Saturday, 7 November
Partly cloudy. High 44°, low 32°.
0.1
Big Sky, Sunday, 8 November
Climate normal for this date — 60-year average.
0.07Big Sky, Monday, 9 November
Climate normal for this date — 60-year average.
0.05Big Sky, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.06Big Sky, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.08Big Sky, Thursday, 12 November
Climate normal for this date — 60-year average.
0.07Big Sky, Friday, 13 November
Climate normal for this date — 60-year average.
0.09Big Sky, Saturday, 14 November
Climate normal for this date — 60-year average.
0.04Big Sky, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07Big Sky, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Big Sky, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.08Big Sky, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.07Big Sky, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07Big Sky, Friday, 20 November
Climate normal for this date — 60-year average.
0.04Big Sky, Saturday, 21 November
Climate normal for this date — 60-year average.
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.
Sun and moon today
Weather history
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