Monthly outlook for Altamont, WY: average high 47.9°, average low 31.4°. That is 2.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 29 October (55.5°), the coolest 3 November (26.2°).
47.9°/31.4°
Average high / low
+2.4°
Above normal
5 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
48.2°
45°
+1.8°
7 November – 16 November
47.3°
40.5°
+3.8°
17 November – 26 November
at normal
35.2°
—
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).
Thu, 2956° / 33°0
56 °
Altamont, Thursday, 29 October
Overcast. High 56°, low 33°.
Pressure30.03 inHg
Wind3.6 mph NW
Humidity52%
Visibility6.2 mi
Dew point31°
Fri, 3053° / 35°0.06
53 °
Altamont, Friday, 30 October
Rain. High 53°, low 35°.
Pressure29.91 inHg
Wind2.6 mph NE
Humidity51%
Visibility6.2 mi
Dew point36°
Sat, 3154° / 36°0
54 °
Altamont, Saturday, 31 October
Mostly clear. High 54°, low 36°.
Pressure30.03 inHg
Wind11.4 mph SW
Humidity59%
Visibility6.2 mi
Dew point37°
Sun, 0143° / 32°0.64
43 °
Altamont, Sunday, 1 November
Snow. High 43°, low 32°.
Pressure29.77 inHg
Wind14.4 mph W
Humidity88%
Visibility—
Dew point39°
Mon, 0234° / 29°0.14
34 °
Altamont, Monday, 2 November
Light snow. High 34°, low 29°.
Pressure30.21 inHg
Wind14.7 mph NW
Humidity92%
Visibility—
Dew point31°
Tue, 0346° / 26°0
46 °
Altamont, Tuesday, 3 November
Clear. High 46°, low 26°.
Pressure30.27 inHg
Wind3.6 mph NE
Humidity46%
Visibility—
Dew point20°
Wed, 0449° / 30°0
49 °
Altamont, Wednesday, 4 November
Overcast. High 49°, low 30°.
Pressure30.03 inHg
Wind6.8 mph NE
Humidity32%
Visibility—
Dew point16°
Thu, 0549° / 32°0
49 °
Altamont, Thursday, 5 November
Overcast. High 49°, low 32°.
Pressure29.85 inHg
Wind21 mph W
Humidity31%
Visibility—
Dew point18°
Fri, 0649° / 32°0
49 °
Altamont, Friday, 6 November
Mostly clear. High 49°, low 32°.
Pressure29.97 inHg
Wind11.5 mph W
Humidity30%
Visibility—
Dew point15°
Sat, 0752° / 36°0
52 °
Altamont, Saturday, 7 November
Partly cloudy. High 52°, low 36°.
Pressure29.94 inHg
Wind10.6 mph W
Humidity30%
Visibility—
Dew point18°
Sun, 0839° / 29°0.15
39 °
Altamont, Sunday, 8 November
Snow. High 39°, low 29°.
Pressure30.09 inHg
Wind18.8 mph SW
Humidity65%
Visibility—
Dew point26°
Mon, 0941° / 26°0
41 °
Altamont, Monday, 9 November
Mostly clear. High 41°, low 26°.
Pressure30.27 inHg
Wind9.2 mph SW
Humidity59%
Visibility—
Dew point22°
Tue, 1049° / 27°0
49 °
Altamont, Tuesday, 10 November
Overcast. High 49°, low 27°.
Pressure30.12 inHg
Wind6.7 mph W
Humidity28%
Visibility—
Dew point11°
Wed, 1149° / 35°0
49 °
Altamont, Wednesday, 11 November
Overcast. High 49°, low 35°.
Pressure30.03 inHg
Wind13.3 mph W
Humidity34%
Visibility—
Dew point18°
Thu, 1253° / 32°0
53 °
Altamont, Thursday, 12 November
Overcast. High 53°, low 32°.
Pressure29.85 inHg
Wind6.1 mph SW
Humidity28%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
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)
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)
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.