Monthly outlook for Altamont, WY: average high 45.5°, average low 29.1°. That is 3° above the climate normal for November. Precipitation is expected on 4 days (about 0.8 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 November (54.9°), the coolest 20 November (11.8°).
45.5°/29.1°
Average high / low
+3°
Above normal
4 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
5 November – 14 November
48.8°
41.6°
+4°
15 November – 24 November
39.9°
36.5°
+1.9°
25 November – 4 December
at normal
31.5°
—
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).
Fri, 0646° / 30°0
46 °
Altamont, Friday, 6 November
Mostly clear. High 46°, low 30°.
Pressure30.30 inHg
Wind6.4 mph W
Humidity70%
Visibility1.7 mi
Dew point33°
Sat, 0749° / 28°0
49 °
Altamont, Saturday, 7 November
Partly cloudy. High 49°, low 28°.
Pressure30.27 inHg
Wind6.1 mph W
Humidity58%
Visibility6.2 mi
Dew point29°
Sun, 0855° / 29°0
55 °
Altamont, Sunday, 8 November
Partly cloudy. High 55°, low 29°.
Pressure30.21 inHg
Wind10.3 mph SW
Humidity46%
Visibility6.2 mi
Dew point32°
Mon, 0955° / 33°0
55 °
Altamont, Monday, 9 November
Overcast. High 55°, low 33°.
Pressure30.21 inHg
Wind9.4 mph W
Humidity49%
Visibility—
Dew point29°
Tue, 1053° / 33°0
53 °
Altamont, Tuesday, 10 November
Clear. High 53°, low 33°.
Pressure30.21 inHg
Wind12.8 mph W
Humidity48%
Visibility—
Dew point29°
Wed, 1151° / 33°0
51 °
Altamont, Wednesday, 11 November
Overcast. High 51°, low 33°.
Pressure30.06 inHg
Wind7.4 mph E
Humidity28%
Visibility—
Dew point14°
Thu, 1248° / 30°0
48 °
Altamont, Thursday, 12 November
Partly cloudy. High 48°, low 30°.
Pressure30.00 inHg
Wind7.3 mph NE
Humidity43%
Visibility—
Dew point21°
Fri, 1352° / 34°0
52 °
Altamont, Friday, 13 November
Overcast. High 52°, low 34°.
Pressure29.83 inHg
Wind5.4 mph SW
Humidity45%
Visibility—
Dew point25°
Sat, 1437° / 28°0.22
37 °
Altamont, Saturday, 14 November
Snow. High 37°, low 28°.
Pressure29.94 inHg
Wind14.9 mph SW
Humidity99%
Visibility—
Dew point35°
Sun, 1543° / 26°0
43 °
Altamont, Sunday, 15 November
Clear. High 43°, low 26°.
Pressure30.18 inHg
Wind9.2 mph W
Humidity56%
Visibility—
Dew point23°
Mon, 1648° / 33°0
48 °
Altamont, Monday, 16 November
Overcast. High 48°, low 33°.
Pressure29.94 inHg
Wind4.1 mph S
Humidity44%
Visibility—
Dew point22°
Tue, 1749° / 33°0
49 °
Altamont, Tuesday, 17 November
Overcast. High 49°, low 33°.
Pressure29.85 inHg
Wind5.5 mph S
Humidity36%
Visibility—
Dew point19°
Wed, 1843° / 31°0.1
43 °
Altamont, Wednesday, 18 November
Snow. High 43°, low 31°.
Pressure29.80 inHg
Wind17.5 mph W
Humidity63%
Visibility—
Dew point29°
Thu, 1930° / 22°0.33
30 °
Altamont, Thursday, 19 November
Snow. High 30°, low 22°.
Pressure30.09 inHg
Wind13.5 mph SW
Humidity96%
Visibility—
Dew point27°
Fri, 2027° / 12°0.17
27 °
Altamont, Friday, 20 November
Snow. High 27°, low 12°.
Pressure30.42 inHg
Wind13 mph W
Humidity90%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2334° / 16°0.04
34 °
Altamont, Monday, 23 November
Climate normal for this date — 60-year average.
Average high34°
Average low16°
Average precipitation0.04 in
Chance of precipitation35%
Record high53° (2017)
Record low-8° (2003)
Tue, 2434° / 15°0.06
34 °
Altamont, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high34°
Average low15°
Average precipitation0.06 in
Chance of precipitation30%
Record high53° (1995)
Record low-9° (1993)
Wed, 2533° / 15°0.09
33 °
Altamont, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high33°
Average low15°
Average precipitation0.09 in
Chance of precipitation33%
Record high56° (1995)
Record low-12° (2010)
Thu, 2631° / 15°0.09
31 °
Altamont, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.09 in
Chance of precipitation40%
Record high58° (2017)
Record low-11° (1993)
Fri, 2730° / 13°0.05
30 °
Altamont, Friday, 27 November
Climate normal for this date — 60-year average.
Average high30°
Average low13°
Average precipitation0.05 in
Chance of precipitation32%
Record high52° (1998)
Record low-5° (1967)
Sat, 2831° / 14°0.06
31 °
Altamont, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high31°
Average low14°
Average precipitation0.06 in
Chance of precipitation35%
Record high50° (1986)
Record low-12° (2001)
Sun, 2931° / 14°0.05
31 °
Altamont, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high31°
Average low14°
Average precipitation0.05 in
Chance of precipitation28%
Record high53° (1999)
Record low-16° (1979)
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)
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.