Weather in West Yellowstone, MT
West Yellowstone, Friday, 30 October, 14:37
Overcast. Feels like 45°. High 48°, low 27°.
Monthly outlook for West Yellowstone, MT: average high 40.2°, average low 23.7°. That is 2.5° above the climate normal for October. Precipitation is expected on 7 days (about 1.8 inches), against a normal of 6 days and 1.2 inches. The warmest day looks like 30 October (48.2°), the coolest 13 November (14.9°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 41.5° | 37.2° | +2.4° |
| 9 November – 18 November | 38.1° | 32.7° | +3° |
| 19 November – 28 November | at normal | 27.6° | — |
October records over 66 years
0.26
West Yellowstone, Saturday, 31 October
Rain. High 46°, low 32°.
0.53
West Yellowstone, Sunday, 1 November
Snow. High 41°, low 32°.
0.07West Yellowstone, Monday, 2 November
Light rain. High 42°, low 23°.
0West Yellowstone, Tuesday, 3 November
Overcast. High 43°, low 23°.
0West Yellowstone, Wednesday, 4 November
Overcast. High 43°, low 29°.
0West Yellowstone, Thursday, 5 November
Overcast. High 37°, low 24°.
0.26West Yellowstone, Friday, 6 November
Snow. High 40°, low 24°.
0West Yellowstone, Saturday, 7 November
Overcast. High 36°, low 18°.
0
West Yellowstone, Sunday, 8 November
Partly cloudy. High 40°, low 18°.
0
West Yellowstone, Monday, 9 November
Clear. High 46°, low 23°.
0West Yellowstone, Tuesday, 10 November
Overcast. High 43°, low 25°.
0.1West Yellowstone, Wednesday, 11 November
Light snow. High 38°, low 27°.
0.48West Yellowstone, Thursday, 12 November
Snow. High 33°, low 20°.
0.01West Yellowstone, Friday, 13 November
Light snow. High 30°, low 15°.
0.04West Yellowstone, Saturday, 14 November
Light snow. High 39°, low 18°.
0.03West Yellowstone, Sunday, 15 November
Climate normal for this date — 60-year average.
0.07
West Yellowstone, Monday, 16 November
Climate normal for this date — 60-year average.
0.07West Yellowstone, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.09West Yellowstone, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.06West Yellowstone, Thursday, 19 November
Climate normal for this date — 60-year average.
0.07West Yellowstone, Friday, 20 November
Climate normal for this date — 60-year average.
0.06West Yellowstone, Saturday, 21 November
Climate normal for this date — 60-year average.
0.09West Yellowstone, Sunday, 22 November
Climate normal for this date — 60-year average.
0.07West Yellowstone, Monday, 23 November
Climate normal for this date — 60-year average.
0.1West Yellowstone, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.11West Yellowstone, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.07West Yellowstone, Thursday, 26 November
Climate normal for this date — 60-year average.
0.06West Yellowstone, Friday, 27 November
Climate normal for this date — 60-year average.
0.07West Yellowstone, Saturday, 28 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 West Yellowstone, 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 West Yellowstone, 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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