Weather in Amherst, MT
Amherst, Thursday, 15 October, 13:06
Clear. Feels like 40°. High 47°, low 36°.
Monthly outlook for Amherst, MT: average high 53.3°, average low 38.2°. That is 0° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (74.2°), the coolest 30 October (28.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 15 October – 24 October | 61.3° | 55° | +3.5° |
| 25 October – 3 November | 40.1° | 49.2° | -5° |
| 4 November – 13 November | at normal | 44.4° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewistown (11 mi).
0Amherst, Friday, 16 October
Clear. High 66°, low 36°.
0
Amherst, Saturday, 17 October
Overcast. High 74°, low 48°.
0Amherst, Sunday, 18 October
Overcast. High 64°, low 39°.
0Amherst, Monday, 19 October
Overcast. High 71°, low 43°.
0
Amherst, Tuesday, 20 October
Mostly clear. High 67°, low 46°.
0Amherst, Wednesday, 21 October
Mostly clear. High 69°, low 43°.
0.01
Amherst, Thursday, 22 October
Light rain. High 58°, low 50°.
0
Amherst, Friday, 23 October
Partly cloudy. High 54°, low 41°.
0Amherst, Saturday, 24 October
Clear. High 43°, low 36°.
0.04
Amherst, Sunday, 25 October
Light snow. High 37°, low 33°.
0Amherst, Monday, 26 October
Overcast. High 37°, low 33°.
0.25Amherst, Tuesday, 27 October
Snow. High 38°, low 33°.
0Amherst, Wednesday, 28 October
Overcast. High 43°, low 31°.
0Amherst, Thursday, 29 October
Overcast. High 45°, low 34°.
0Amherst, Friday, 30 October
Partly cloudy. High 41°, low 29°.
0.05Amherst, Saturday, 31 October
Climate normal for this date — 60-year average.
0.03Amherst, Sunday, 1 November
Climate normal for this date — 60-year average.
0.02Amherst, Monday, 2 November
Climate normal for this date — 60-year average.
0.05Amherst, Tuesday, 3 November
Climate normal for this date — 60-year average.
0.05Amherst, Wednesday, 4 November
Climate normal for this date — 60-year average.
0.07Amherst, Thursday, 5 November
Climate normal for this date — 60-year average.
0.03Amherst, Friday, 6 November
Climate normal for this date — 60-year average.
0.02Amherst, Saturday, 7 November
Climate normal for this date — 60-year average.
0.06Amherst, Sunday, 8 November
Climate normal for this date — 60-year average.
0.05Amherst, Monday, 9 November
Climate normal for this date — 60-year average.
0.04Amherst, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.03Amherst, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.04Amherst, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Amherst, Friday, 13 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 Amherst, 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 Amherst, 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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