Monthly outlook for Altamont, WY: average high 51.2°, average low 33.3°. That is 2.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 8 November (62.9°), the coolest 25 October (28°).
51.2°/33.3°
Average high / low
+2.9°
Above normal
3 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
48°
47.1°
+0.5°
3 November – 12 November
56.7°
42.7°
+7.8°
13 November – 22 November
at normal
37.5°
—
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).
Sun, 2544° / 28°0
44 °
Altamont, Sunday, 25 October
Overcast. High 44°, low 28°.
Pressure30.21 inHg
Wind7.4 mph NE
Humidity75%
Visibility6.2 mi
Dew point33°
Mon, 2649° / 29°0
49 °
Altamont, Monday, 26 October
Partly cloudy. High 49°, low 29°.
Pressure30.09 inHg
Wind5.2 mph NE
Humidity70%
Visibility6.2 mi
Dew point36°
Tue, 2744° / 31°0.15
44 °
Altamont, Tuesday, 27 October
Snow. High 44°, low 31°.
Pressure30.12 inHg
Wind16.9 mph W
Humidity74%
Visibility6.2 mi
Dew point28°
Wed, 2852° / 32°0.02
52 °
Altamont, Wednesday, 28 October
Snow. High 52°, low 32°.
Pressure30.03 inHg
Wind7.6 mph W
Humidity66%
Visibility6.2 mi
Dew point35°
Thu, 2955° / 35°0
55 °
Altamont, Thursday, 29 October
Overcast. High 55°, low 35°.
Pressure29.91 inHg
Wind17.7 mph SW
Humidity43%
Visibility—
Dew point29°
Fri, 3053° / 36°0
53 °
Altamont, Friday, 30 October
Overcast. High 53°, low 36°.
Pressure29.83 inHg
Wind14.7 mph SW
Humidity41%
Visibility—
Dew point27°
Sat, 3148° / 35°0.08
48 °
Altamont, Saturday, 31 October
Snow. High 48°, low 35°.
Pressure29.83 inHg
Wind16.9 mph SW
Humidity46%
Visibility—
Dew point25°
Sun, 0145° / 32°0.05
45 °
Altamont, Sunday, 1 November
Light rain. High 45°, low 32°.
Pressure30.12 inHg
Wind13.9 mph W
Humidity57%
Visibility—
Dew point28°
Mon, 0245° / 31°0
45 °
Altamont, Monday, 2 November
Overcast. High 45°, low 31°.
Pressure30.18 inHg
Wind6.6 mph NE
Humidity58%
Visibility—
Dew point25°
Tue, 0350° / 29°0
50 °
Altamont, Tuesday, 3 November
Overcast. High 50°, low 29°.
Pressure30.03 inHg
Wind16.6 mph W
Humidity36%
Visibility—
Dew point18°
Wed, 0449° / 30°0
49 °
Altamont, Wednesday, 4 November
Overcast. High 49°, low 30°.
Pressure30.00 inHg
Wind17.3 mph W
Humidity39%
Visibility—
Dew point20°
Thu, 0560° / 35°0
60 °
Altamont, Thursday, 5 November
Overcast. High 60°, low 35°.
Pressure29.91 inHg
Wind19.7 mph SW
Humidity28%
Visibility—
Dew point19°
Fri, 0658° / 38°0
58 °
Altamont, Friday, 6 November
Overcast. High 58°, low 38°.
Pressure29.91 inHg
Wind24.5 mph W
Humidity25%
Visibility—
Dew point18°
Sat, 0760° / 42°0
60 °
Altamont, Saturday, 7 November
Clear. High 60°, low 42°.
Pressure30.03 inHg
Wind18.8 mph W
Humidity28%
Visibility—
Dew point23°
Sun, 0863° / 39°0
63 °
Altamont, Sunday, 8 November
Clear. High 63°, low 39°.
Pressure30.15 inHg
Wind5.2 mph NW
Humidity21%
Visibility—
Dew point16°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0942° / 23°0.09
42 °
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°0.06
40 °
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°0.04
40 °
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°0.07
40 °
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°0.04
40 °
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°0.07
39 °
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°0.02
39 °
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°0.04
39 °
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°0.06
38 °
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°0.06
37 °
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)
Thu, 1937° / 18°0.04
37 °
Altamont, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high37°
Average low18°
Average precipitation0.04 in
Chance of precipitation22%
Record high56° (2007)
Record low-9° (2022)
Fri, 2037° / 18°0.06
37 °
Altamont, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low18°
Average precipitation0.06 in
Chance of precipitation20%
Record high56° (1989)
Record low-4° (1994)
Sat, 2136° / 18°0.05
36 °
Altamont, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high36°
Average low18°
Average precipitation0.05 in
Chance of precipitation32%
Record high53° (1995)
Record low-1° (2015)
Sun, 2235° / 17°0.06
35 °
Altamont, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high35°
Average low17°
Average precipitation0.06 in
Chance of precipitation35%
Record high51° (2017)
Record low-9° (1979)
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.