Monthly outlook for Casper Mountain, WY: average high 49.5°, average low 35.1°. That is 4.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 23 October (59.7°), the coolest 29 October (25.1°).
49.5°/35.1°
Average high / low
+4.6°
Above normal
2 / 3
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
49.9°
42.6°
+4°
2 November – 11 November
48.8°
37.8°
+6.1°
12 November – 21 November
at normal
34°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Sat, 2444° / 33°0
44 °
Casper Mountain, Saturday, 24 October
Overcast. High 44°, low 33°.
Pressure30.42 inHg
Wind8.4 mph E
Humidity70%
Visibility6.2 mi
Dew point27°
Sun, 2550° / 33°0
50 °
Casper Mountain, Sunday, 25 October
Overcast. High 50°, low 33°.
Pressure30.27 inHg
Wind4.6 mph NW
Humidity58%
Visibility6.2 mi
Dew point29°
Mon, 2650° / 34°0
50 °
Casper Mountain, Monday, 26 October
Overcast. High 50°, low 34°.
Pressure30.24 inHg
Wind1.1 mph N
Humidity74%
Visibility6.2 mi
Dew point36°
Tue, 2756° / 38°0
56 °
Casper Mountain, Tuesday, 27 October
Partly cloudy. High 56°, low 38°.
Pressure29.80 inHg
Wind22.4 mph SW
Humidity42%
Visibility—
Dew point31°
Wed, 2856° / 35°0
56 °
Casper Mountain, Wednesday, 28 October
Partly cloudy. High 56°, low 35°.
Pressure30.03 inHg
Wind15.1 mph SW
Humidity48%
Visibility—
Dew point29°
Thu, 2941° / 25°0
41 °
Casper Mountain, Thursday, 29 October
Mostly clear. High 41°, low 25°.
Pressure30.21 inHg
Wind8.7 mph SW
Humidity52%
Visibility—
Dew point16°
Fri, 3047° / 30°0
47 °
Casper Mountain, Friday, 30 October
Overcast. High 47°, low 30°.
Pressure29.88 inHg
Wind9.2 mph SW
Humidity34%
Visibility—
Dew point19°
Sat, 3148° / 35°0
48 °
Casper Mountain, Saturday, 31 October
Mostly clear. High 48°, low 35°.
Pressure29.88 inHg
Wind17.7 mph W
Humidity45%
Visibility—
Dew point23°
Sun, 0148° / 35°0.1
48 °
Casper Mountain, Sunday, 1 November
Light rain. High 48°, low 35°.
Pressure29.83 inHg
Wind20.2 mph SW
Humidity48%
Visibility—
Dew point28°
Mon, 0251° / 40°0
51 °
Casper Mountain, Monday, 2 November
Light rain. High 51°, low 40°.
Pressure29.71 inHg
Wind24.4 mph W
Humidity51%
Visibility—
Dew point30°
Tue, 0345° / 39°0.07
45 °
Casper Mountain, Tuesday, 3 November
Light rain. High 45°, low 39°.
Pressure29.71 inHg
Wind19.1 mph SW
Humidity69%
Visibility—
Dew point33°
Wed, 0445° / 34°0
45 °
Casper Mountain, Wednesday, 4 November
Overcast. High 45°, low 34°.
Pressure29.74 inHg
Wind18.9 mph SW
Humidity55%
Visibility—
Dew point25°
Thu, 0544° / 30°0
44 °
Casper Mountain, Thursday, 5 November
Partly cloudy. High 44°, low 30°.
Pressure29.88 inHg
Wind35.4 mph SW
Humidity40%
Visibility—
Dew point17°
Fri, 0651° / 39°0
51 °
Casper Mountain, Friday, 6 November
Overcast. High 51°, low 39°.
Pressure29.97 inHg
Wind36.1 mph SW
Humidity41%
Visibility—
Dew point24°
Sat, 0757° / 39°0
57 °
Casper Mountain, Saturday, 7 November
Clear. High 57°, low 39°.
Pressure30.03 inHg
Wind17.2 mph SW
Humidity34%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0838° / 22°0.06
38 °
Casper Mountain, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.06 in
Chance of precipitation25%
Record high58° (1999)
Record low-1° (2011)
Mon, 0937° / 20°0.04
37 °
Casper Mountain, Monday, 9 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.04 in
Chance of precipitation28%
Record high58° (2016)
Record low-6° (1966)
Tue, 1036° / 19°0.05
36 °
Casper Mountain, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high36°
Average low19°
Average precipitation0.05 in
Chance of precipitation23%
Record high58° (2005)
Record low-18° (1986)
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)
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.