Monthly outlook for Altamont, WY: average high 38.3°, average low 24.9°. That is 1.9° above the climate normal for November. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 17 November (48.2°), the coolest 27 November (9.7°).
38.3°/24.9°
Average high / low
+1.9°
Above normal
6 / 5
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
42.9°
36.9°
+3.3°
24 November – 3 December
30.8°
31.7°
-0.5°
4 December – 13 December
at normal
29°
—
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).
Sun, 1548° / 27°0
48 °
Altamont, Sunday, 15 November
Clear. High 48°, low 27°.
Pressure30.12 inHg
Wind4.3 mph W
Humidity64%
Visibility6.2 mi
Dew point24°
Mon, 1645° / 28°0
45 °
Altamont, Monday, 16 November
Overcast. High 45°, low 28°.
Pressure30.09 inHg
Wind5.7 mph NE
Humidity61%
Visibility6.2 mi
Dew point29°
Tue, 1748° / 32°0.09
48 °
Altamont, Tuesday, 17 November
Light rain. High 48°, low 32°.
Pressure29.80 inHg
Wind9.2 mph S
Humidity57%
Visibility6.2 mi
Dew point33°
Wed, 1842° / 29°0.07
42 °
Altamont, Wednesday, 18 November
Snow. High 42°, low 29°.
Pressure30.06 inHg
Wind11.8 mph SW
Humidity75%
Visibility6.2 mi
Dew point30°
Thu, 1940° / 29°0.02
40 °
Altamont, Thursday, 19 November
Snow. High 40°, low 29°.
Pressure30.00 inHg
Wind4.9 mph NE
Humidity69%
Visibility—
Dew point29°
Fri, 2037° / 28°0
37 °
Altamont, Friday, 20 November
Overcast. High 37°, low 28°.
Pressure29.91 inHg
Wind18.7 mph W
Humidity70%
Visibility—
Dew point27°
Sat, 2140° / 26°0
40 °
Altamont, Saturday, 21 November
Partly cloudy. High 40°, low 26°.
Pressure30.12 inHg
Wind8.9 mph SW
Humidity38%
Visibility—
Dew point13°
Sun, 2244° / 26°0
44 °
Altamont, Sunday, 22 November
Overcast. High 44°, low 26°.
Pressure30.06 inHg
Wind4.9 mph S
Humidity24%
Visibility—
Dew point5°
Mon, 2345° / 29°0
45 °
Altamont, Monday, 23 November
Overcast. High 45°, low 29°.
Pressure30.06 inHg
Wind12 mph W
Humidity35%
Visibility—
Dew point15°
Tue, 2443° / 29°0
43 °
Altamont, Tuesday, 24 November
Overcast. High 43°, low 29°.
Pressure29.77 inHg
Wind7.5 mph SW
Humidity39%
Visibility—
Dew point16°
Wed, 2531° / 26°0.41
31 °
Altamont, Wednesday, 25 November
Snow. High 31°, low 26°.
Pressure29.80 inHg
Wind14.7 mph W
Humidity87%
Visibility—
Dew point28°
Thu, 2628° / 11°0.33
28 °
Altamont, Thursday, 26 November
Snow. High 28°, low 11°.
Pressure30.18 inHg
Wind17 mph E
Humidity93%
Visibility—
Dew point26°
Fri, 2726° / 10°0
26 °
Altamont, Friday, 27 November
Overcast. High 26°, low 10°.
Pressure30.06 inHg
Wind4.7 mph S
Humidity83%
Visibility—
Dew point18°
Sat, 2828° / 18°0.03
28 °
Altamont, Saturday, 28 November
Light snow. High 28°, low 18°.
Pressure29.97 inHg
Wind11.9 mph W
Humidity91%
Visibility—
Dew point23°
Sun, 2927° / 19°0.1
27 °
Altamont, Sunday, 29 November
Light snow. High 27°, low 19°.
Pressure30.09 inHg
Wind13.4 mph SW
Humidity90%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 3032° / 14°0.05
32 °
Altamont, Monday, 30 November
Climate normal for this date — 60-year average.
Average high32°
Average low14°
Average precipitation0.05 in
Chance of precipitation32%
Record high52° (1999)
Record low-15° (2006)
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)
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.