Monthly outlook for Casper Mountain, WY: average high 48.9°, average low 33°. That is 5.8° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 30 October (63.6°), the coolest 4 November (26.7°).
48.9°/33°
Average high / low
+5.8°
Above normal
4 / 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
49.8°
39.4°
+5.8°
7 November – 16 November
47.4°
36.1°
+6.2°
17 November – 26 November
at normal
31.4°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Thu, 2957° / 35°0
57 °
Casper Mountain, Thursday, 29 October
Clear. High 57°, low 35°.
Pressure30.03 inHg
Wind11.3 mph SW
Humidity40%
Visibility6.2 mi
Dew point30°
Fri, 3064° / 37°0
64 °
Casper Mountain, Friday, 30 October
Overcast. High 64°, low 37°.
Pressure29.94 inHg
Wind5.8 mph SW
Humidity35%
Visibility6.2 mi
Dew point33°
Sat, 3156° / 43°0.11
56 °
Casper Mountain, Saturday, 31 October
Rain. High 56°, low 43°.
Pressure30.00 inHg
Wind8.1 mph SW
Humidity87%
Visibility5.7 mi
Dew point44°
Sun, 0153° / 43°0.23
53 °
Casper Mountain, Sunday, 1 November
Light rain. High 53°, low 43°.
Pressure29.85 inHg
Wind1.7 mph NW
Humidity61%
Visibility6.2 mi
Dew point39°
Mon, 0243° / 28°0.76
43 °
Casper Mountain, Monday, 2 November
Snow. High 43°, low 28°.
Pressure30.30 inHg
Wind9.3 mph N
Humidity99%
Visibility—
Dew point37°
Tue, 0343° / 28°0
43 °
Casper Mountain, Tuesday, 3 November
Partly cloudy. High 43°, low 28°.
Pressure30.27 inHg
Wind10.3 mph SW
Humidity62%
Visibility—
Dew point29°
Wed, 0440° / 27°0
40 °
Casper Mountain, Wednesday, 4 November
Partly cloudy. High 40°, low 27°.
Pressure30.09 inHg
Wind8.5 mph S
Humidity67%
Visibility—
Dew point26°
Thu, 0546° / 30°0
46 °
Casper Mountain, Thursday, 5 November
Partly cloudy. High 46°, low 30°.
Pressure29.88 inHg
Wind21.5 mph SW
Humidity55%
Visibility—
Dew point25°
Fri, 0647° / 31°0
47 °
Casper Mountain, Friday, 6 November
Overcast. High 47°, low 31°.
Pressure30.00 inHg
Wind9.8 mph SW
Humidity45%
Visibility—
Dew point22°
Sat, 0747° / 34°0
47 °
Casper Mountain, Saturday, 7 November
Partly cloudy. High 47°, low 34°.
Pressure29.97 inHg
Wind23.4 mph W
Humidity43%
Visibility—
Dew point22°
Sun, 0848° / 33°0
48 °
Casper Mountain, Sunday, 8 November
Overcast. High 48°, low 33°.
Pressure30.06 inHg
Wind22 mph W
Humidity45%
Visibility—
Dew point22°
Mon, 0942° / 29°0
42 °
Casper Mountain, Monday, 9 November
Mostly clear. High 42°, low 29°.
Pressure30.30 inHg
Wind17 mph W
Humidity22%
Visibility—
Dew point1°
Tue, 1046° / 32°0
46 °
Casper Mountain, Tuesday, 10 November
Overcast. High 46°, low 32°.
Pressure29.97 inHg
Wind17.9 mph W
Humidity24%
Visibility—
Dew point6°
Wed, 1149° / 34°0
49 °
Casper Mountain, Wednesday, 11 November
Overcast. High 49°, low 34°.
Pressure29.88 inHg
Wind16 mph NW
Humidity34%
Visibility—
Dew point16°
Thu, 1251° / 33°0
51 °
Casper Mountain, Thursday, 12 November
Clear. High 51°, low 33°.
Pressure29.77 inHg
Wind11.9 mph S
Humidity26%
Visibility—
Dew point13°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 2627° / 13°0.1
27 °
Casper Mountain, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high27°
Average low13°
Average precipitation0.1 in
Chance of precipitation42%
Record high50° (2017)
Record low-10° (2002)
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.