Monthly outlook for Barnum, WY: average high 55.4°, average low 37.7°. That is 0.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 17 October (74.2°), the coolest 31 October (21.8°).
55.4°/37.7°
Average high / low
+0.6°
Above normal
2 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
61°
56.6°
+2.5°
27 October – 5 November
46°
49.7°
-2.1°
6 November – 15 November
at normal
45.6°
—
October records over 66 years
86.5°1 October 2011All-time high
-9.4°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Kaycee (14 mi).
Sun, 1858° / 42°0
58 °
Barnum, Sunday, 18 October
Clear. High 58°, low 42°.
Pressure30.12 inHg
Wind6.9 mph E
Humidity39%
Visibility6.2 mi
Dew point32°
Mon, 1964° / 41°0
64 °
Barnum, Monday, 19 October
Clear. High 64°, low 41°.
Pressure29.97 inHg
Wind6.7 mph SE
Humidity38%
Visibility6.2 mi
Dew point35°
Tue, 2063° / 40°0
63 °
Barnum, Tuesday, 20 October
Clear. High 63°, low 40°.
Pressure29.97 inHg
Wind2.2 mph SE
Humidity39%
Visibility6.2 mi
Dew point37°
Wed, 2163° / 43°0
63 °
Barnum, Wednesday, 21 October
Clear. High 63°, low 43°.
Pressure30.12 inHg
Wind6.5 mph S
Humidity48%
Visibility—
Dew point36°
Thu, 2267° / 45°0
67 °
Barnum, Thursday, 22 October
Overcast. High 67°, low 45°.
Pressure29.88 inHg
Wind7.9 mph W
Humidity42%
Visibility—
Dew point40°
Fri, 2360° / 48°0
60 °
Barnum, Friday, 23 October
Overcast. High 60°, low 48°.
Pressure29.62 inHg
Wind20.3 mph SW
Humidity42%
Visibility—
Dew point36°
Sat, 2448° / 38°0.05
48 °
Barnum, Saturday, 24 October
Snow. High 48°, low 38°.
Pressure30.09 inHg
Wind16.6 mph NW
Humidity77%
Visibility—
Dew point34°
Sun, 2561° / 38°0
61 °
Barnum, Sunday, 25 October
Overcast. High 61°, low 38°.
Pressure29.80 inHg
Wind16.7 mph SW
Humidity35%
Visibility—
Dew point27°
Mon, 2653° / 44°0
53 °
Barnum, Monday, 26 October
Overcast. High 53°, low 44°.
Pressure29.71 inHg
Wind35 mph W
Humidity23%
Visibility—
Dew point11°
Tue, 2759° / 38°0
59 °
Barnum, Tuesday, 27 October
Partly cloudy. High 59°, low 38°.
Pressure29.59 inHg
Wind26.8 mph W
Humidity33%
Visibility—
Dew point24°
Wed, 2847° / 36°0.01
47 °
Barnum, Wednesday, 28 October
Light rain. High 47°, low 36°.
Pressure30.00 inHg
Wind24.4 mph W
Humidity22%
Visibility—
Dew point6°
Thu, 2952° / 38°0
52 °
Barnum, Thursday, 29 October
Overcast. High 52°, low 38°.
Pressure29.62 inHg
Wind19.2 mph W
Humidity31%
Visibility—
Dew point20°
Fri, 3042° / 26°0.39
42 °
Barnum, Friday, 30 October
Snow. High 42°, low 26°.
Pressure29.53 inHg
Wind14.9 mph N
Humidity86%
Visibility—
Dew point31°
Sat, 3134° / 22°0.01
34 °
Barnum, Saturday, 31 October
Light snow. High 34°, low 22°.
Pressure29.83 inHg
Wind10.4 mph W
Humidity58%
Visibility—
Dew point19°
Sun, 0142° / 25°0
42 °
Barnum, Sunday, 1 November
Overcast. High 42°, low 25°.
Pressure29.83 inHg
Wind10.3 mph W
Humidity61%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0248° / 26°0.05
48 °
Barnum, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.05 in
Chance of precipitation18%
Record high69° (2020)
Record low-15° (1991)
Tue, 0348° / 26°0.03
48 °
Barnum, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low26°
Average precipitation0.03 in
Chance of precipitation20%
Record high70° (2020)
Record low-16° (1991)
Wed, 0450° / 27°0.02
50 °
Barnum, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high69° (2001)
Record low-1° (1973)
Thu, 0549° / 27°0.04
49 °
Barnum, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high71° (2020)
Record low-8° (1973)
Fri, 0649° / 27°0.04
49 °
Barnum, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation17%
Record high73° (2010)
Record low-14° (2003)
Sat, 0749° / 27°0.04
49 °
Barnum, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high49°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high70° (1999)
Record low-10° (2003)
Sun, 0847° / 26°0.06
47 °
Barnum, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high47°
Average low26°
Average precipitation0.06 in
Chance of precipitation22%
Record high71° (1999)
Record low-8° (2003)
Mon, 0945° / 25°0.04
45 °
Barnum, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.04 in
Chance of precipitation28%
Record high71° (2016)
Record low-9° (1960)
Tue, 1044° / 24°0.06
44 °
Barnum, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.06 in
Chance of precipitation25%
Record high67° (2005)
Record low-11° (1986)
Wed, 1143° / 23°0.02
43 °
Barnum, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high43°
Average low23°
Average precipitation0.02 in
Chance of precipitation22%
Record high67° (2005)
Record low-11° (1986)
Thu, 1245° / 23°0.04
45 °
Barnum, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low23°
Average precipitation0.04 in
Chance of precipitation22%
Record high71° (1999)
Record low-24° (2014)
Fri, 1345° / 24°0.06
45 °
Barnum, Friday, 13 November
Climate normal for this date — 60-year average.
Average high45°
Average low24°
Average precipitation0.06 in
Chance of precipitation27%
Record high70° (1999)
Record low-26° (2014)
Sat, 1444° / 24°0.03
44 °
Barnum, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high44°
Average low24°
Average precipitation0.03 in
Chance of precipitation15%
Record high69° (1999)
Record low-13° (2000)
Sun, 1544° / 22°0.03
44 °
Barnum, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high44°
Average low22°
Average precipitation0.03 in
Chance of precipitation17%
Record high69° (1999)
Record low-14° (2014)
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 Barnum, 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 Barnum, 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.