Weather in Amherst, MT
Amherst, Monday, 19 October, 04:37
Mostly clear. Feels like 31°. High 71°, low 37°.
Monthly outlook for Amherst, MT: average high 54.7°, average low 36.9°. That is 1.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.1 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 22 October (75.7°), the coolest 28 October (23.1°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 19 October – 28 October | 55° | 53.6° | +0.7° |
| 29 October – 7 November | 54.2° | 47.1° | +3.9° |
| 8 November – 17 November | at normal | 43.2° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewistown (11 mi).
0
Amherst, Tuesday, 20 October
Overcast. High 59°, low 43°.
0
Amherst, Wednesday, 21 October
Partly cloudy. High 70°, low 40°.
0
Amherst, Thursday, 22 October
Clear. High 76°, low 49°.
0.5
Amherst, Friday, 23 October
Rain. High 54°, low 45°.
0.39Amherst, Saturday, 24 October
Rain. High 48°, low 38°.
0Amherst, Sunday, 25 October
Overcast. High 57°, low 35°.
0.11
Amherst, Monday, 26 October
Light snow. High 35°, low 29°.
0.07Amherst, Tuesday, 27 October
Light snow. High 32°, low 24°.
0Amherst, Wednesday, 28 October
Clear. High 47°, low 23°.
0Amherst, Thursday, 29 October
Partly cloudy. High 60°, low 34°.
0Amherst, Friday, 30 October
Overcast. High 60°, low 47°.
0
Amherst, Saturday, 31 October
Mostly clear. High 57°, low 40°.
0.02Amherst, Sunday, 1 November
Light rain. High 58°, low 42°.
0Amherst, Monday, 2 November
Light rain. High 40°, low 34°.
0Amherst, Tuesday, 3 November
Overcast. High 51°, low 31°.
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.
0.04Amherst, Saturday, 14 November
Climate normal for this date — 60-year average.
0.03Amherst, Sunday, 15 November
Climate normal for this date — 60-year average.
0.03Amherst, Monday, 16 November
Climate normal for this date — 60-year average.
0.04Amherst, Tuesday, 17 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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