Weather in Altamont, WY
Altamont, Friday, 30 October, 03:20
Overcast. Feels like 40°. High 51°, low 35°.
Monthly outlook for Altamont, WY: average high 41°, average low 27.5°. That is 0.9° below the climate normal for October. Precipitation is expected on 7 days (about 1.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 30 October (50.8°), the coolest 12 November (13.2°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 30 October – 8 November | 47.4° | 44.1° | +1.8° |
| 9 November – 18 November | 30.3° | 39.3° | -5° |
| 19 November – 28 November | at normal | 33.8° | — |
October records over 66 years
Climate normals and records are computed from the nearest reference point — Evanston (10 mi).
0.02
Altamont, Saturday, 31 October
Light rain. High 49°, low 37°.
0.25Altamont, Sunday, 1 November
Light rain. High 45°, low 37°.
0.01Altamont, Monday, 2 November
Light rain. High 44°, low 32°.
0Altamont, Tuesday, 3 November
Overcast. High 47°, low 26°.
0Altamont, Wednesday, 4 November
Overcast. High 47°, low 29°.
0.1
Altamont, Thursday, 5 November
Snow. High 45°, low 33°.
0Altamont, Friday, 6 November
Overcast. High 46°, low 32°.
0
Altamont, Saturday, 7 November
Clear. High 49°, low 29°.
0Altamont, Sunday, 8 November
Clear. High 51°, low 30°.
0Altamont, Monday, 9 November
Overcast. High 48°, low 33°.
0.09Altamont, Tuesday, 10 November
Snow. High 35°, low 21°.
0.11Altamont, Wednesday, 11 November
Light snow. High 26°, low 17°.
0.01Altamont, Thursday, 12 November
Light snow. High 25°, low 13°.
0.23Altamont, Friday, 13 November
Light snow. High 23°, low 16°.
0.14Altamont, Saturday, 14 November
Light snow. High 25°, low 18°.
0.02
Altamont, Sunday, 15 November
Climate normal for this date — 60-year average.
0.04
Altamont, Monday, 16 November
Climate normal for this date — 60-year average.
0.06
Altamont, 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.
0.05Altamont, Saturday, 21 November
Climate normal for this date — 60-year average.
0.06Altamont, Sunday, 22 November
Climate normal for this date — 60-year average.
0.04Altamont, Monday, 23 November
Climate normal for this date — 60-year average.
0.06Altamont, Tuesday, 24 November
Climate normal for this date — 60-year average.
0.09Altamont, Wednesday, 25 November
Climate normal for this date — 60-year average.
0.09Altamont, Thursday, 26 November
Climate normal for this date — 60-year average.
0.05Altamont, Friday, 27 November
Climate normal for this date — 60-year average.
0.06Altamont, 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 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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