Weather in Amherst, MT
Amherst, Tuesday, 20 October, 23:32
Mostly clear. Feels like 36°. High 60°, low 37°.
Monthly outlook for Amherst, MT: average high 57.2°, average low 37.8°. That is 3.5° above the climate normal for October. Precipitation is expected on 1 day (about 1.0 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 22 October (74.9°), the coolest 26 October (26.3°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 20 October – 29 October | 54.6° | 52.8° | +1° |
| 30 October – 8 November | 61.5° | 46.7° | +8.2° |
| 9 November – 18 November | at normal | 42.9° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Lewistown (11 mi).
0
Amherst, Wednesday, 21 October
Clear. High 70°, low 39°.
0Amherst, Thursday, 22 October
Clear. High 75°, low 48°.
0.98
Amherst, Friday, 23 October
Snow. High 54°, low 35°.
0Amherst, Saturday, 24 October
Clear. High 43°, low 27°.
0Amherst, Sunday, 25 October
Clear. High 43°, low 29°.
0
Amherst, Monday, 26 October
Mostly clear. High 42°, low 26°.
0Amherst, Tuesday, 27 October
Clear. High 52°, low 32°.
0Amherst, Wednesday, 28 October
Clear. High 50°, low 34°.
0Amherst, Thursday, 29 October
Clear. High 55°, low 35°.
0
Amherst, Friday, 30 October
Partly cloudy. High 59°, low 36°.
0
Amherst, Saturday, 31 October
Overcast. High 53°, low 35°.
0Amherst, Sunday, 1 November
Mostly clear. High 52°, low 41°.
0Amherst, Monday, 2 November
Overcast. High 65°, low 42°.
0Amherst, Tuesday, 3 November
Mostly clear. High 70°, low 56°.
0Amherst, Wednesday, 4 November
Mostly clear. High 70°, low 50°.
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.
0.04Amherst, Wednesday, 18 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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