Monthly outlook for Casper Mountain, WY: average high 50.4°, average low 33.2°. That is 6.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 30 October (64.1°), the coolest 3 November (21.8°).
50.4°/33.2°
Average high / low
+6.4°
Above normal
3 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
27 October – 5 November
50.5°
39.9°
+5.9°
6 November – 15 November
50.1°
36.5°
+7.6°
16 November – 25 November
at normal
32.2°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Wed, 2853° / 37°0.05
53 °
Casper Mountain, Wednesday, 28 October
Light rain. High 53°, low 37°.
Pressure29.97 inHg
Wind14 mph W
Humidity47%
Visibility6.2 mi
Dew point27°
Thu, 2960° / 41°0
60 °
Casper Mountain, Thursday, 29 October
Overcast. High 60°, low 41°.
Pressure30.00 inHg
Wind11.6 mph SW
Humidity40%
Visibility6.2 mi
Dew point32°
Fri, 3064° / 39°0
64 °
Casper Mountain, Friday, 30 October
Overcast. High 64°, low 39°.
Pressure29.97 inHg
Wind4.4 mph SW
Humidity35%
Visibility6.2 mi
Dew point32°
Sat, 3160° / 42°0
60 °
Casper Mountain, Saturday, 31 October
Overcast. High 60°, low 42°.
Pressure29.91 inHg
Wind13.7 mph SW
Humidity50%
Visibility—
Dew point36°
Sun, 0158° / 44°0.09
58 °
Casper Mountain, Sunday, 1 November
Light rain. High 58°, low 44°.
Pressure29.80 inHg
Wind6.8 mph S
Humidity50%
Visibility—
Dew point36°
Mon, 0242° / 22°0.23
42 °
Casper Mountain, Monday, 2 November
Snow. High 42°, low 22°.
Pressure30.03 inHg
Wind19.3 mph NE
Humidity85%
Visibility—
Dew point25°
Tue, 0332° / 22°0
32 °
Casper Mountain, Tuesday, 3 November
Overcast. High 32°, low 22°.
Pressure30.36 inHg
Wind6.9 mph SW
Humidity62%
Visibility—
Dew point17°
Wed, 0441° / 23°0
41 °
Casper Mountain, Wednesday, 4 November
Overcast. High 41°, low 23°.
Pressure30.12 inHg
Wind6.7 mph S
Humidity44%
Visibility—
Dew point15°
Thu, 0542° / 28°0
42 °
Casper Mountain, Thursday, 5 November
Overcast. High 42°, low 28°.
Pressure30.00 inHg
Wind10.9 mph W
Humidity49%
Visibility—
Dew point20°
Fri, 0648° / 31°0
48 °
Casper Mountain, Friday, 6 November
Overcast. High 48°, low 31°.
Pressure29.97 inHg
Wind19.6 mph SW
Humidity38%
Visibility—
Dew point19°
Sat, 0756° / 37°0
56 °
Casper Mountain, Saturday, 7 November
Mostly clear. High 56°, low 37°.
Pressure29.85 inHg
Wind16.7 mph SW
Humidity29%
Visibility—
Dew point19°
Sun, 0846° / 33°0.04
46 °
Casper Mountain, Sunday, 8 November
Light rain. High 46°, low 33°.
Pressure29.83 inHg
Wind17 mph W
Humidity42%
Visibility—
Dew point24°
Mon, 0945° / 30°0
45 °
Casper Mountain, Monday, 9 November
Clear. High 45°, low 30°.
Pressure30.24 inHg
Wind11.8 mph SW
Humidity40%
Visibility—
Dew point17°
Tue, 1052° / 33°0
52 °
Casper Mountain, Tuesday, 10 November
Overcast. High 52°, low 33°.
Pressure30.03 inHg
Wind16.8 mph SW
Humidity23%
Visibility—
Dew point11°
Wed, 1153° / 34°0
53 °
Casper Mountain, Wednesday, 11 November
Clear. High 53°, low 34°.
Pressure29.83 inHg
Wind19 mph SW
Humidity27%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Wed, 2530° / 16°0.05
30 °
Casper Mountain, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high30°
Average low16°
Average precipitation0.05 in
Chance of precipitation27%
Record high52° (1990)
Record low-24° (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.