Weather in Big Sky, MT
Big Sky, Thursday, 22 October, 22:46
Partly cloudy. Feels like 50°. High 61°, low 36°.
Monthly outlook for Big Sky, MT: average high 41.6°, average low 22.6°. That is 0.1° above the climate normal for October. Precipitation is expected on 7 days (about 2.5 inches), against a normal of 6 days and 1.3 inches. The warmest day looks like 22 October (60.7°), the coolest 2 November (11.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 41.4° | 42.9° | -0.8° |
| 1 November – 10 November | 42° | 38.4° | +2° |
| 11 November – 20 November | at normal | 34.6° | — |
October records over 66 years
1.33
Big Sky, Friday, 23 October
Snow. High 50°, low 25°.
0
Big Sky, Saturday, 24 October
Clear. High 43°, low 17°.
0Big Sky, Sunday, 25 October
Clear. High 46°, low 23°.
0
Big Sky, Monday, 26 October
Overcast. High 46°, low 23°.
0.07Big Sky, Tuesday, 27 October
Light snow. High 37°, low 27°.
0.33Big Sky, Wednesday, 28 October
Snow. High 32°, low 21°.
0.17Big Sky, Thursday, 29 October
Snow. High 37°, low 23°.
0.39Big Sky, Friday, 30 October
Snow. High 33°, low 26°.
0.06Big Sky, Saturday, 31 October
Light snow. High 29°, low 17°.
0.18Big Sky, Sunday, 1 November
Light snow. High 29°, low 15°.
0
Big Sky, Monday, 2 November
Partly cloudy. High 36°, low 12°.
0Big Sky, Tuesday, 3 November
Clear. High 40°, low 14°.
0
Big Sky, Wednesday, 4 November
Mostly clear. High 45°, low 22°.
0Big Sky, Thursday, 5 November
Clear. High 51°, low 30°.
0Big Sky, Friday, 6 November
Clear. High 51°, low 31°.
0.08
Big Sky, Saturday, 7 November
Climate normal for this date — 60-year average.
0.1Big 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.
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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