Weather in Big Sandy, MT
Big Sandy, Monday, 12 October, 22:05
Mostly clear. Feels like 27°. High 38°, low 31°.
Monthly outlook for Big Sandy, MT: average high 56.9°, average low 39.6°. That is 0.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 19 October (73.4°), the coolest 13 October (29.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 12 October – 21 October | 57.8° | 57.2° | +0.4° |
| 22 October – 31 October | 55.4° | 52.6° | +1.6° |
| 1 November – 10 November | at normal | 46.3° | — |
October records over 66 years
0
Big Sandy, Tuesday, 13 October
Clear. High 48°, low 29°.
0
Big Sandy, Wednesday, 14 October
Partly cloudy. High 58°, low 34°.
0Big Sandy, Thursday, 15 October
Clear. High 53°, low 35°.
0Big Sandy, Friday, 16 October
Clear. High 68°, low 45°.
0Big Sandy, Saturday, 17 October
Partly cloudy. High 72°, low 46°.
0
Big Sandy, Sunday, 18 October
Mostly clear. High 63°, low 40°.
0
Big Sandy, Monday, 19 October
Overcast. High 73°, low 51°.
0Big Sandy, Tuesday, 20 October
Overcast. High 61°, low 44°.
0Big Sandy, Wednesday, 21 October
Overcast. High 44°, low 39°.
0Big Sandy, Thursday, 22 October
Clear. High 53°, low 36°.
0.07
Big Sandy, Friday, 23 October
Light rain. High 42°, low 39°.
0Big Sandy, Saturday, 24 October
Partly cloudy. High 50°, low 35°.
0Big Sandy, Sunday, 25 October
Overcast. High 56°, low 39°.
0Big Sandy, Monday, 26 October
Clear. High 67°, low 46°.
0Big Sandy, Tuesday, 27 October
Overcast. High 65°, low 47°.
0.02Big Sandy, Wednesday, 28 October
Climate normal for this date — 60-year average.
0.03Big Sandy, Thursday, 29 October
Climate normal for this date — 60-year average.
0.02Big Sandy, Friday, 30 October
Climate normal for this date — 60-year average.
0.05Big Sandy, Saturday, 31 October
Climate normal for this date — 60-year average.
0.02Big Sandy, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Big Sandy, Monday, 2 November
Climate normal for this date — 60-year average.
0.03Big Sandy, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.04Big Sandy, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.05Big Sandy, Thursday, 5 November
Climate normal for this date — 60-year average.
0.02Big Sandy, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Big Sandy, Saturday, 7 November
Climate normal for this date — 60-year average.
0.05Big Sandy, Sunday, 8 November
Climate normal for this date — 60-year average.
0.04Big Sandy, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Big Sandy, Tuesday, 10 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 Sandy, 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 Sandy, 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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