Monthly outlook for Casper Mountain, WY: average high 42.7°, average low 29.7°. That is 1.8° above the climate normal for October. Precipitation is expected on 2 days (about 2.0 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 30 October (61.7°), the coolest 4 November (17.3°).
42.7°/29.7°
Average high / low
+1.8°
Above normal
2 / 4
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
46.7°
40.4°
+3.5°
5 November – 14 November
36.2°
37°
-0.4°
15 November – 24 November
at normal
32.6°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Tue, 2754° / 38°0
54 °
Casper Mountain, Tuesday, 27 October
Clear. High 54°, low 38°.
Pressure29.88 inHg
Wind20.2 mph SW
Humidity43%
Visibility6.2 mi
Dew point25°
Wed, 2854° / 39°0.04
54 °
Casper Mountain, Wednesday, 28 October
Light rain. High 54°, low 39°.
Pressure29.97 inHg
Wind13.6 mph W
Humidity49%
Visibility6.2 mi
Dew point29°
Thu, 2960° / 41°0
60 °
Casper Mountain, Thursday, 29 October
Overcast. High 60°, low 41°.
Pressure30.03 inHg
Wind12 mph SW
Humidity41%
Visibility6.2 mi
Dew point32°
Fri, 3062° / 39°0
62 °
Casper Mountain, Friday, 30 October
Overcast. High 62°, low 39°.
Pressure29.91 inHg
Wind8.7 mph SW
Humidity35%
Visibility6.2 mi
Dew point32°
Sat, 3159° / 45°0
59 °
Casper Mountain, Saturday, 31 October
Partly cloudy. High 59°, low 45°.
Pressure29.88 inHg
Wind15.7 mph SW
Humidity49%
Visibility—
Dew point37°
Sun, 0152° / 26°0.02
52 °
Casper Mountain, Sunday, 1 November
Light snow. High 52°, low 26°.
Pressure29.80 inHg
Wind18.9 mph SW
Humidity55%
Visibility—
Dew point35°
Mon, 0226° / 21°1.11
26 °
Casper Mountain, Monday, 2 November
Snow. High 26°, low 21°.
Pressure30.15 inHg
Wind14.3 mph NW
Humidity97%
Visibility—
Dew point22°
Tue, 0327° / 25°0.83
27 °
Casper Mountain, Tuesday, 3 November
Snow. High 27°, low 25°.
Pressure30.33 inHg
Wind16.9 mph N
Humidity100%
Visibility—
Dew point27°
Wed, 0427° / 17°0
27 °
Casper Mountain, Wednesday, 4 November
Overcast. High 27°, low 17°.
Pressure30.36 inHg
Wind7.7 mph S
Humidity100%
Visibility—
Dew point26°
Thu, 0529° / 19°0
29 °
Casper Mountain, Thursday, 5 November
Partly cloudy. High 29°, low 19°.
Pressure30.15 inHg
Wind8.7 mph S
Humidity98%
Visibility—
Dew point27°
Fri, 0631° / 25°0
31 °
Casper Mountain, Friday, 6 November
Overcast. High 31°, low 25°.
Pressure30.03 inHg
Wind10 mph S
Humidity97%
Visibility—
Dew point29°
Sat, 0737° / 31°0
37 °
Casper Mountain, Saturday, 7 November
Overcast. High 37°, low 31°.
Pressure29.83 inHg
Wind16.8 mph S
Humidity90%
Visibility—
Dew point32°
Sun, 0841° / 29°0
41 °
Casper Mountain, Sunday, 8 November
Overcast. High 41°, low 29°.
Pressure29.74 inHg
Wind21.8 mph SW
Humidity82%
Visibility—
Dew point32°
Mon, 0939° / 26°0
39 °
Casper Mountain, Monday, 9 November
Clear. High 39°, low 26°.
Pressure30.00 inHg
Wind14.6 mph W
Humidity65%
Visibility—
Dew point23°
Tue, 1040° / 27°0.02
40 °
Casper Mountain, Tuesday, 10 November
Light snow. High 40°, low 27°.
Pressure30.12 inHg
Wind18.3 mph NW
Humidity56%
Visibility—
Dew point22°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1134° / 19°0.04
34 °
Casper Mountain, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.04 in
Chance of precipitation18%
Record high56° (1999)
Record low-10° (2019)
Thu, 1236° / 20°0.04
36 °
Casper Mountain, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.04 in
Chance of precipitation23%
Record high59° (1999)
Record low-14° (2014)
Fri, 1336° / 20°0.05
36 °
Casper Mountain, Friday, 13 November
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.05 in
Chance of precipitation27%
Record high58° (1999)
Record low-25° (2014)
Sat, 1435° / 20°0.04
35 °
Casper Mountain, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.04 in
Chance of precipitation27%
Record high58° (1999)
Record low-3° (1978)
Sun, 1534° / 19°0.04
34 °
Casper Mountain, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.04 in
Chance of precipitation13%
Record high59° (1999)
Record low-12° (2014)
Mon, 1635° / 20°0.03
35 °
Casper Mountain, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.03 in
Chance of precipitation23%
Record high55° (1999)
Record low-17° (2014)
Tue, 1734° / 19°0.04
34 °
Casper Mountain, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.04 in
Chance of precipitation20%
Record high59° (1999)
Record low-8° (2022)
Wed, 1833° / 18°0.05
33 °
Casper Mountain, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.05 in
Chance of precipitation27%
Record high53° (2008)
Record low-17° (2022)
Thu, 1932° / 17°0.03
32 °
Casper Mountain, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.03 in
Chance of precipitation15%
Record high55° (2007)
Record low-6° (1985)
Fri, 2033° / 17°0.04
33 °
Casper Mountain, Friday, 20 November
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.04 in
Chance of precipitation12%
Record high50° (1989)
Record low-14° (1977)
Sat, 2132° / 18°0.04
32 °
Casper Mountain, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high32°
Average low18°
Average precipitation0.04 in
Chance of precipitation18%
Record high50° (2012)
Record low-15° (1977)
Sun, 2231° / 17°0.03
31 °
Casper Mountain, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.03 in
Chance of precipitation20%
Record high46° (2002)
Record low-13° (1985)
Mon, 2330° / 15°0.03
30 °
Casper Mountain, Monday, 23 November
Climate normal for this date — 60-year average.
Average high30°
Average low15°
Average precipitation0.03 in
Chance of precipitation18%
Record high48° (2017)
Record low-19° (2003)
Tue, 2431° / 16°0.05
31 °
Casper Mountain, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.05 in
Chance of precipitation27%
Record high49° (1990)
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 Casper Mountain, 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 Casper Mountain, 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.