Monthly outlook for Casper Mountain, WY: average high 51.5°, average low 33.3°. That is 4.6° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 21 October (68.7°), the coolest 28 October (10.2°).
51.5°/33.3°
Average high / low
+4.6°
Above normal
3 / 3
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
54.1°
46°
+4.5°
29 October – 7 November
47.3°
39.1°
+4.6°
8 November – 17 November
at normal
35.5°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Tue, 2065° / 40°0
65 °
Casper Mountain, Tuesday, 20 October
Clear. High 65°, low 40°.
Pressure30.06 inHg
Wind10.6 mph SW
Humidity44%
Visibility6.2 mi
Dew point41°
Wed, 2169° / 44°0
69 °
Casper Mountain, Wednesday, 21 October
Partly cloudy. High 69°, low 44°.
Pressure30.12 inHg
Wind0.2 mph SE
Humidity42%
Visibility6.2 mi
Dew point40°
Thu, 2268° / 48°0
68 °
Casper Mountain, Thursday, 22 October
Overcast. High 68°, low 48°.
Pressure29.97 inHg
Wind18.1 mph SW
Humidity48%
Visibility6.2 mi
Dew point45°
Fri, 2363° / 51°0
63 °
Casper Mountain, Friday, 23 October
Partly cloudy. High 63°, low 51°.
Pressure29.68 inHg
Wind20.6 mph SW
Humidity40%
Visibility—
Dew point37°
Sat, 2452° / 39°0
52 °
Casper Mountain, Saturday, 24 October
Overcast. High 52°, low 39°.
Pressure30.06 inHg
Wind16.7 mph SW
Humidity48%
Visibility—
Dew point32°
Sun, 2554° / 28°0
54 °
Casper Mountain, Sunday, 25 October
Clear. High 54°, low 28°.
Pressure30.18 inHg
Wind17.6 mph SW
Humidity20%
Visibility—
Dew point6°
Mon, 2644° / 31°0
44 °
Casper Mountain, Monday, 26 October
Clear. High 44°, low 31°.
Pressure30.15 inHg
Wind12.7 mph NE
Humidity42%
Visibility—
Dew point16°
Tue, 2729° / 19°0.23
29 °
Casper Mountain, Tuesday, 27 October
Snow. High 29°, low 19°.
Pressure30.47 inHg
Wind12.8 mph NE
Humidity85%
Visibility—
Dew point20°
Wed, 2834° / 10°0.01
34 °
Casper Mountain, Wednesday, 28 October
Light snow. High 34°, low 10°.
Pressure30.33 inHg
Wind7.7 mph S
Humidity70%
Visibility—
Dew point17°
Thu, 2951° / 27°0
51 °
Casper Mountain, Thursday, 29 October
Clear. High 51°, low 27°.
Pressure29.91 inHg
Wind18.4 mph SW
Humidity43%
Visibility—
Dew point22°
Fri, 3055° / 39°0
55 °
Casper Mountain, Friday, 30 October
Overcast. High 55°, low 39°.
Pressure29.80 inHg
Wind22 mph SW
Humidity38%
Visibility—
Dew point26°
Sat, 3149° / 37°0
49 °
Casper Mountain, Saturday, 31 October
Overcast. High 49°, low 37°.
Pressure29.91 inHg
Wind24.8 mph SW
Humidity49%
Visibility—
Dew point27°
Sun, 0146° / 35°0.07
46 °
Casper Mountain, Sunday, 1 November
Light rain. High 46°, low 35°.
Pressure29.77 inHg
Wind18.4 mph W
Humidity63%
Visibility—
Dew point32°
Mon, 0235° / 29°0.26
35 °
Casper Mountain, Monday, 2 November
Snow. High 35°, low 29°.
Pressure30.18 inHg
Wind6.7 mph NW
Humidity95%
Visibility—
Dew point29°
Tue, 0348° / 30°0
48 °
Casper Mountain, Tuesday, 3 November
Partly cloudy. High 48°, low 30°.
Pressure30.15 inHg
Wind21.9 mph SW
Humidity53%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0439° / 21°0.02
39 °
Casper Mountain, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high39°
Average low21°
Average precipitation0.02 in
Chance of precipitation13%
Record high60° (1983)
Record low-5° (1967)
Thu, 0539° / 22°0.03
39 °
Casper Mountain, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.03 in
Chance of precipitation20%
Record high59° (1999)
Record low-6° (1961)
Fri, 0639° / 23°0.04
39 °
Casper Mountain, Friday, 6 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (1999)
Record low-11° (1971)
Sat, 0740° / 22°0.03
40 °
Casper Mountain, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high40°
Average low22°
Average precipitation0.03 in
Chance of precipitation17%
Record high60° (1999)
Record low-9° (1990)
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)
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.