Weather in Altamont, WY
Altamont, Thursday, 22 October, 16:21
Overcast. Feels like 44°. High 51°, low 42°.
Monthly outlook for Altamont, WY: average high 45.8°, average low 32.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 5 days (about 0.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 28 October (55.5°), the coolest 1 November (25.6°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 22 October – 31 October | 46.6° | 48.5° | -1.1° |
| 1 November – 10 November | 44.4° | 43.5° | +0.5° |
| 11 November – 20 November | at normal | 38.5° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Evanston (10 mi).
0.17
Altamont, Friday, 23 October
Rain. High 46°, low 37°.
0
Altamont, Saturday, 24 October
Mostly clear. High 46°, low 31°.
0.05Altamont, Sunday, 25 October
Light rain. High 42°, low 32°.
0
Altamont, Monday, 26 October
Clear. High 51°, low 29°.
0.16
Altamont, Tuesday, 27 October
Snow. High 43°, low 30°.
0Altamont, Wednesday, 28 October
Overcast. High 56°, low 28°.
0.02Altamont, Thursday, 29 October
Light rain. High 53°, low 40°.
0.29Altamont, Friday, 30 October
Snow. High 37°, low 34°.
0.02Altamont, Saturday, 31 October
Snow. High 42°, low 28°.
0Altamont, Sunday, 1 November
Overcast. High 44°, low 26°.
0Altamont, Monday, 2 November
Overcast. High 45°, low 32°.
0Altamont, Tuesday, 3 November
Overcast. High 44°, low 36°.
0.01Altamont, Wednesday, 4 November
Light snow. High 36°, low 34°.
0Altamont, Thursday, 5 November
Light rain. High 48°, low 35°.
0Altamont, Friday, 6 November
Clear. High 49°, low 33°.
0.05
Altamont, Saturday, 7 November
Climate normal for this date — 60-year average.
0.07
Altamont, Sunday, 8 November
Climate normal for this date — 60-year average.
0.09Altamont, Monday, 9 November
Climate normal for this date — 60-year average.
0.06Altamont, Tuesday, 10 November
Climate normal for this date — 60-year average.
0.04Altamont, Wednesday, 11 November
Climate normal for this date — 60-year average.
0.07Altamont, Thursday, 12 November
Climate normal for this date — 60-year average.
0.04Altamont, Friday, 13 November
Climate normal for this date — 60-year average.
0.07Altamont, Saturday, 14 November
Climate normal for this date — 60-year average.
0.02Altamont, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04Altamont, Monday, 16 November
Climate normal for this date — 60-year average.
0.06Altamont, Tuesday, 17 November
Climate normal for this date — 60-year average.
0.06Altamont, Wednesday, 18 November
Climate normal for this date — 60-year average.
0.04Altamont, Thursday, 19 November
Climate normal for this date — 60-year average.
0.06Altamont, Friday, 20 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 Altamont, WY 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 Altamont, WY 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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