Monthly outlook for Altamont, WY: average high 33.4°, average low 19.7°. That is 0.6° below the climate normal for November. Precipitation is expected on 5 days (about 1.0 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 16 November (45.3°), the coolest 29 November (9.3°).
33.4°/19.7°
Average high / low
−0.6°
Below normal
5 / 5
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
37.4°
36.5°
+0.5°
25 November – 4 December
26.6°
31.5°
-2.7°
5 December – 14 December
at normal
28.7°
—
November records over 66 years
64.2°7 November 1999All-time high
-16.2°29 November 1979All-time low
Climate normals and records are computed from the nearest reference point — Evanston (10 mi).
Mon, 1645° / 30°0
45 °
Altamont, Monday, 16 November
Overcast. High 45°, low 30°.
Pressure30.06 inHg
Wind6.2 mph NE
Humidity63%
Visibility6.2 mi
Dew point30°
Tue, 1744° / 30°0.36
44 °
Altamont, Tuesday, 17 November
Snow. High 44°, low 30°.
Pressure29.71 inHg
Wind9.5 mph NE
Humidity68%
Visibility6.2 mi
Dew point33°
Wed, 1834° / 23°0.02
34 °
Altamont, Wednesday, 18 November
Light snow. High 34°, low 23°.
Pressure30.15 inHg
Wind13.9 mph SW
Humidity90%
Visibility1.5 mi
Dew point21°
Thu, 1931° / 23°0.16
31 °
Altamont, Thursday, 19 November
Light snow. High 31°, low 23°.
Pressure30.06 inHg
Wind8.2 mph NE
Humidity94%
Visibility6.2 mi
Dew point23°
Fri, 2031° / 21°0.03
31 °
Altamont, Friday, 20 November
Light snow. High 31°, low 21°.
Pressure29.80 inHg
Wind23.4 mph SW
Humidity95%
Visibility—
Dew point28°
Sat, 2139° / 18°0
39 °
Altamont, Saturday, 21 November
Partly cloudy. High 39°, low 18°.
Pressure29.97 inHg
Wind9 mph SW
Humidity40%
Visibility—
Dew point9°
Sun, 2237° / 24°0.04
37 °
Altamont, Sunday, 22 November
Light snow. High 37°, low 24°.
Pressure29.88 inHg
Wind9.9 mph W
Humidity41%
Visibility—
Dew point12°
Mon, 2331° / 20°0.04
31 °
Altamont, Monday, 23 November
Light snow. High 31°, low 20°.
Pressure30.21 inHg
Wind13.4 mph SW
Humidity55%
Visibility—
Dew point13°
Tue, 2439° / 20°0.01
39 °
Altamont, Tuesday, 24 November
Light snow. High 39°, low 20°.
Pressure30.00 inHg
Wind13.3 mph SW
Humidity45%
Visibility—
Dew point15°
Wed, 2529° / 19°0.21
29 °
Altamont, Wednesday, 25 November
Snow. High 29°, low 19°.
Pressure30.03 inHg
Wind16.4 mph W
Humidity82%
Visibility—
Dew point23°
Thu, 2626° / 17°0.02
26 °
Altamont, Thursday, 26 November
Light snow. High 26°, low 17°.
Pressure30.27 inHg
Wind20.6 mph SW
Humidity77%
Visibility—
Dew point19°
Fri, 2727° / 15°0.06
27 °
Altamont, Friday, 27 November
Light snow. High 27°, low 15°.
Pressure30.09 inHg
Wind10.5 mph W
Humidity58%
Visibility—
Dew point12°
Sat, 2826° / 11°0.04
26 °
Altamont, Saturday, 28 November
Light snow. High 26°, low 11°.
Pressure30.06 inHg
Wind19.5 mph SW
Humidity90%
Visibility—
Dew point20°
Sun, 2921° / 9°0
21 °
Altamont, Sunday, 29 November
Overcast. High 21°, low 9°.
Pressure30.53 inHg
Wind8.8 mph SW
Humidity85%
Visibility—
Dew point14°
Mon, 3030° / 10°0
30 °
Altamont, Monday, 30 November
Overcast. High 30°, low 10°.
Pressure30.33 inHg
Wind6.5 mph S
Humidity63%
Visibility—
Dew point14°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0132° / 14°0.06
32 °
Altamont, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high32°
Average low14°
Average precipitation0.06 in
Chance of precipitation30%
Record high53° (1995)
Record low-8° (1991)
Wed, 0232° / 15°0.06
32 °
Altamont, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high32°
Average low15°
Average precipitation0.06 in
Chance of precipitation37%
Record high51° (2021)
Record low-8° (1971)
Thu, 0332° / 14°0.06
32 °
Altamont, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high32°
Average low14°
Average precipitation0.06 in
Chance of precipitation28%
Record high50° (1998)
Record low-10° (2020)
Fri, 0431° / 14°0.06
31 °
Altamont, Friday, 4 December
Climate normal for this date — 60-year average.
Average high31°
Average low14°
Average precipitation0.06 in
Chance of precipitation33%
Record high47° (2021)
Record low-8° (1984)
Sat, 0530° / 12°0.06
30 °
Altamont, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high30°
Average low12°
Average precipitation0.06 in
Chance of precipitation32%
Record high45° (1986)
Record low-16° (2013)
Sun, 0629° / 12°0.05
29 °
Altamont, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high29°
Average low12°
Average precipitation0.05 in
Chance of precipitation28%
Record high47° (1987)
Record low-13° (1972)
Mon, 0729° / 12°0.06
29 °
Altamont, Monday, 7 December
Climate normal for this date — 60-year average.
Average high29°
Average low12°
Average precipitation0.06 in
Chance of precipitation33%
Record high46° (1965)
Record low-18° (2013)
Tue, 0828° / 11°0.06
28 °
Altamont, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high28°
Average low11°
Average precipitation0.06 in
Chance of precipitation32%
Record high46° (1981)
Record low-27° (1978)
Wed, 0929° / 11°0.05
29 °
Altamont, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high29°
Average low11°
Average precipitation0.05 in
Chance of precipitation27%
Record high51° (1981)
Record low-21° (2009)
Thu, 1029° / 11°0.04
29 °
Altamont, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high29°
Average low11°
Average precipitation0.04 in
Chance of precipitation20%
Record high48° (1981)
Record low-23° (1972)
Fri, 1129° / 11°0.03
29 °
Altamont, Friday, 11 December
Climate normal for this date — 60-year average.
Average high29°
Average low11°
Average precipitation0.03 in
Chance of precipitation15%
Record high49° (2014)
Record low-21° (1961)
Sat, 1229° / 12°0.05
29 °
Altamont, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high29°
Average low12°
Average precipitation0.05 in
Chance of precipitation27%
Record high48° (2014)
Record low-18° (1972)
Sun, 1328° / 11°0.07
28 °
Altamont, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high28°
Average low11°
Average precipitation0.07 in
Chance of precipitation33%
Record high48° (1998)
Record low-12° (1967)
Mon, 1428° / 11°0.04
28 °
Altamont, Monday, 14 December
Climate normal for this date — 60-year average.
Average high28°
Average low11°
Average precipitation0.04 in
Chance of precipitation30%
Record high49° (1969)
Record low-14° (1972)
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.