Monthly outlook for Casper Mountain, WY: average high 51.1°, average low 35°. That is 6.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 30 October (63.4°), the coolest 9 November (22.1°).
51.1°/35°
Average high / low
+6.4°
Above normal
4 / 4
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
26 October – 4 November
51.7°
40.4°
+6.3°
5 November – 14 November
50.3°
37°
+7.4°
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, 2753° / 39°0
53 °
Casper Mountain, Tuesday, 27 October
Clear. High 53°, low 39°.
Pressure29.88 inHg
Wind20.4 mph SW
Humidity43%
Visibility6.2 mi
Dew point25°
Wed, 2854° / 41°0.05
54 °
Casper Mountain, Wednesday, 28 October
Light rain. High 54°, low 41°.
Pressure29.94 inHg
Wind14.9 mph SW
Humidity50%
Visibility6.2 mi
Dew point32°
Thu, 2960° / 42°0
60 °
Casper Mountain, Thursday, 29 October
Overcast. High 60°, low 42°.
Pressure29.97 inHg
Wind10.9 mph SW
Humidity40%
Visibility6.2 mi
Dew point32°
Fri, 3063° / 40°0
63 °
Casper Mountain, Friday, 30 October
Overcast. High 63°, low 40°.
Pressure29.88 inHg
Wind10 mph SW
Humidity34%
Visibility—
Dew point30°
Sat, 3154° / 43°0.05
54 °
Casper Mountain, Saturday, 31 October
Light rain. High 54°, low 43°.
Pressure29.88 inHg
Wind11.9 mph SW
Humidity83%
Visibility—
Dew point43°
Sun, 0147° / 36°0.35
47 °
Casper Mountain, Sunday, 1 November
Rain. High 47°, low 36°.
Pressure29.94 inHg
Wind12.7 mph SW
Humidity50%
Visibility—
Dew point26°
Mon, 0237° / 27°0
37 °
Casper Mountain, Monday, 2 November
Overcast. High 37°, low 27°.
Pressure30.18 inHg
Wind24.3 mph NW
Humidity44%
Visibility—
Dew point15°
Tue, 0346° / 25°0
46 °
Casper Mountain, Tuesday, 3 November
Overcast. High 46°, low 25°.
Pressure30.12 inHg
Wind15 mph SW
Humidity19%
Visibility—
Dew point1°
Wed, 0450° / 40°0
50 °
Casper Mountain, Wednesday, 4 November
Clear. High 50°, low 40°.
Pressure29.91 inHg
Wind27.6 mph W
Humidity46%
Visibility—
Dew point27°
Thu, 0554° / 36°0
54 °
Casper Mountain, Thursday, 5 November
Partly cloudy. High 54°, low 36°.
Pressure30.00 inHg
Wind19.7 mph W
Humidity43%
Visibility—
Dew point25°
Fri, 0659° / 41°0
59 °
Casper Mountain, Friday, 6 November
Overcast. High 59°, low 41°.
Pressure29.85 inHg
Wind15.5 mph SW
Humidity38%
Visibility—
Dew point28°
Sat, 0760° / 45°0
60 °
Casper Mountain, Saturday, 7 November
Overcast. High 60°, low 45°.
Pressure29.44 inHg
Wind30.3 mph SW
Humidity25%
Visibility—
Dew point22°
Sun, 0839° / 26°0.23
39 °
Casper Mountain, Sunday, 8 November
Snow. High 39°, low 26°.
Pressure29.83 inHg
Wind15.3 mph NW
Humidity74%
Visibility—
Dew point23°
Mon, 0943° / 22°0
43 °
Casper Mountain, Monday, 9 November
Clear. High 43°, low 22°.
Pressure30.15 inHg
Wind15.3 mph W
Humidity44%
Visibility—
Dew point15°
Tue, 1046° / 29°0
46 °
Casper Mountain, Tuesday, 10 November
Clear. High 46°, low 29°.
Pressure30.18 inHg
Wind8.7 mph S
Humidity47%
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.