As of 09:17 MDT

Weather in Altamont, WY

42°Current weather

Altamont, Tuesday, 20 October, 09:17

Overcast. Feels like 39°. High 58°, low 43°.

Pressure30.12 inHg
Wind4.5 mph S
Humidity80%
Visibility0.7 mi
Dew point38°

Monthly outlook for Altamont, WY: average high 51.2°, average low 35.6°. That is 1.7° above 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 21 October (60.1°), the coolest 27 October (28.3°).

51.2°/35.6°
Average high / low
+1.7°
Above normal
7 / 4
Wet days / normal
1.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October53.5°50.3°+1.8°
30 October – 8 November47.4°44.1°+1.8°
9 November – 18 Novemberat normal39.3°—

October records over 66 years

79°4 October 2024All-time high
-11.9°30 October 2019All-time low

Climate normals and records are computed from the nearest reference point — Evanston (10 mi).

Wed, 2160° / 39°0.07Light rain
60 °Light rain

Altamont, Wednesday, 21 October

Light rain. High 60°, low 39°.

Pressure30.09 inHg
Wind6.7 mph NE
Humidity47%
Visibility6.2 mi
Dew point37°
Thu, 2254° / 42°0.09Rain
54 °Rain

Altamont, Thursday, 22 October

Rain. High 54°, low 42°.

Pressure30.03 inHg
Wind8.7 mph E
Humidity66%
Visibility2.8 mi
Dew point42°
Fri, 2352° / 40°0.07Rain
52 °Rain

Altamont, Friday, 23 October

Rain. High 52°, low 40°.

Pressure29.85 inHg
Wind15.7 mph SW
Humidity46%
Visibility6.2 mi
Dew point30°
Sat, 2449° / 35°0.09Light rain
49 °Light rain

Altamont, Saturday, 24 October

Light rain. High 49°, low 35°.

Pressure30.27 inHg
Wind17.9 mph E
Humidity76%
Visibility—
Dew point33°
Sun, 2551° / 31°0Clear
51 °Clear

Altamont, Sunday, 25 October

Clear. High 51°, low 31°.

Pressure30.21 inHg
Wind8.1 mph E
Humidity64%
Visibility—
Dew point33°
Mon, 2650° / 32°0Clear
50 °Clear

Altamont, Monday, 26 October

Clear. High 50°, low 32°.

Pressure30.21 inHg
Wind8.1 mph NW
Humidity37%
Visibility—
Dew point20°
Tue, 2751° / 28°0Clear
51 °Clear

Altamont, Tuesday, 27 October

Clear. High 51°, low 28°.

Pressure30.33 inHg
Wind6.7 mph E
Humidity40%
Visibility—
Dew point20°
Wed, 2855° / 34°0Overcast
55 °Overcast

Altamont, Wednesday, 28 October

Overcast. High 55°, low 34°.

Pressure30.12 inHg
Wind8.1 mph W
Humidity25%
Visibility—
Dew point15°
Thu, 2955° / 36°0Overcast
55 °Overcast

Altamont, Thursday, 29 October

Overcast. High 55°, low 36°.

Pressure30.03 inHg
Wind7.6 mph NE
Humidity30%
Visibility—
Dew point19°
Fri, 3051° / 38°0.06Light rain
51 °Light rain

Altamont, Friday, 30 October

Light rain. High 51°, low 38°.

Pressure30.09 inHg
Wind12.6 mph W
Humidity67%
Visibility—
Dew point35°
Sat, 3154° / 38°0.03Light rain
54 °Light rain

Altamont, Saturday, 31 October

Light rain. High 54°, low 38°.

Pressure30.06 inHg
Wind12.3 mph W
Humidity48%
Visibility—
Dew point30°
Sun, 0154° / 36°0.01Light rain
54 °Light rain

Altamont, Sunday, 1 November

Light rain. High 54°, low 36°.

Pressure29.94 inHg
Wind17.1 mph SW
Humidity36%
Visibility—
Dew point24°
Mon, 0242° / 37°0.37Light rain
42 °Light rain

Altamont, Monday, 2 November

Light rain. High 42°, low 37°.

Pressure30.00 inHg
Wind11.2 mph W
Humidity86%
Visibility—
Dew point37°
Tue, 0341° / 31°0.2Snow
41 °Snow

Altamont, Tuesday, 3 November

Snow. High 41°, low 31°.

Pressure30.18 inHg
Wind13.3 mph W
Humidity92%
Visibility—
Dew point34°
Wed, 0443° / 29°0.02Snow
43 °Snow

Altamont, Wednesday, 4 November

Snow. High 43°, low 29°.

Pressure30.15 inHg
Wind12.3 mph W
Humidity58%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0545° / 26°0.04Climate normal
45 °Climate normal

Altamont, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high45°
Average low26°
Average precipitation0.04 in
Chance of precipitation28%
Record high63° (1980)
Record low-1° (1961)
Fri, 0644° / 26°0.03Climate normal
44 °Climate normal

Altamont, Friday, 6 November

Climate normal for this date — 60-year average.

Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation22%
Record high64° (1999)
Record low-5° (1996)
Sat, 0744° / 25°0.05Climate normal
44 °Climate normal

Altamont, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation20%
Record high64° (1999)
Record low-6° (2003)
Sun, 0842° / 24°0.07Climate normal
42 °Climate normal

Altamont, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high42°
Average low24°
Average precipitation0.07 in
Chance of precipitation35%
Record high59° (2006)
Record low2° (2000)
Mon, 0942° / 23°0.09Climate normal
42 °Climate normal

Altamont, Monday, 9 November

Climate normal for this date — 60-year average.

Average high42°
Average low23°
Average precipitation0.09 in
Chance of precipitation38%
Record high60° (2016)
Record low-3° (1966)
Tue, 1040° / 22°0.06Climate normal
40 °Climate normal

Altamont, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.06 in
Chance of precipitation37%
Record high59° (2005)
Record low3° (1985)
Wed, 1140° / 22°0.04Climate normal
40 °Climate normal

Altamont, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.04 in
Chance of precipitation20%
Record high60° (1999)
Record low-6° (2000)
Thu, 1240° / 21°0.07Climate normal
40 °Climate normal

Altamont, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high40°
Average low21°
Average precipitation0.07 in
Chance of precipitation25%
Record high63° (1999)
Record low-4° (2000)
Fri, 1340° / 22°0.04Climate normal
40 °Climate normal

Altamont, Friday, 13 November

Climate normal for this date — 60-year average.

Average high40°
Average low22°
Average precipitation0.04 in
Chance of precipitation32%
Record high61° (1999)
Record low-2° (1972)
Sat, 1439° / 21°0.07Climate normal
39 °Climate normal

Altamont, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high39°
Average low21°
Average precipitation0.07 in
Chance of precipitation25%
Record high61° (1999)
Record low-8° (1978)
Sun, 1539° / 19°0.02Climate normal
39 °Climate normal

Altamont, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high39°
Average low19°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (1999)
Record low-11° (1978)
Mon, 1639° / 20°0.04Climate normal
39 °Climate normal

Altamont, Monday, 16 November

Climate normal for this date — 60-year average.

Average high39°
Average low20°
Average precipitation0.04 in
Chance of precipitation23%
Record high61° (1999)
Record low-5° (2014)
Tue, 1738° / 19°0.06Climate normal
38 °Climate normal

Altamont, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high38°
Average low19°
Average precipitation0.06 in
Chance of precipitation35%
Record high57° (1999)
Record low-5° (2000)
Wed, 1837° / 19°0.06Climate normal
37 °Climate normal

Altamont, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high37°
Average low19°
Average precipitation0.06 in
Chance of precipitation30%
Record high57° (2008)
Record low-9° (2000)

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.