Monthly outlook for Allendale, WY: average high 61.5°, average low 45°. That is 7.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.3 inches), against a normal of 3 days and 0.9 inches. The warmest day looks like 20 October (70.8°), the coolest 16 October (31.2°).
61.5°/45°
Average high / low
+7.9°
Above normal
4 / 3
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
61.3°
48.5°
+7.1°
22 October – 31 October
61.8°
43.4°
+10.2°
1 November – 10 November
at normal
38.2°
—
October records over 66 years
73.4°1 October 2011All-time high
-20.6°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Casper Mountain (5 mi).
Tue, 1361° / 42°0.3
61 °
Allendale, Tuesday, 13 October
Rain. High 61°, low 42°.
Pressure29.91 inHg
Wind2.9 mph NW
Humidity64%
Visibility6.2 mi
Dew point43°
Wed, 1455° / 46°0.3
55 °
Allendale, Wednesday, 14 October
Rain. High 55°, low 46°.
Pressure30.06 inHg
Wind14.1 mph E
Humidity71%
Visibility6.2 mi
Dew point43°
Thu, 1553° / 42°0.19
53 °
Allendale, Thursday, 15 October
Rain. High 53°, low 42°.
Pressure30.47 inHg
Wind18.4 mph NE
Humidity56%
Visibility6.2 mi
Dew point34°
Fri, 1655° / 31°0
55 °
Allendale, Friday, 16 October
Clear. High 55°, low 31°.
Pressure30.59 inHg
Wind4.7 mph NE
Humidity55%
Visibility—
Dew point30°
Sat, 1767° / 43°0
67 °
Allendale, Saturday, 17 October
Partly cloudy. High 67°, low 43°.
Pressure30.03 inHg
Wind20.6 mph SW
Humidity41%
Visibility—
Dew point37°
Sun, 1867° / 49°0
67 °
Allendale, Sunday, 18 October
Clear. High 67°, low 49°.
Pressure29.88 inHg
Wind17.7 mph SW
Humidity29%
Visibility—
Dew point28°
Mon, 1968° / 49°0
68 °
Allendale, Monday, 19 October
Clear. High 68°, low 49°.
Pressure29.97 inHg
Wind15.9 mph SW
Humidity26%
Visibility—
Dew point27°
Tue, 2071° / 53°0
71 °
Allendale, Tuesday, 20 October
Clear. High 71°, low 53°.
Pressure29.74 inHg
Wind25 mph SW
Humidity30%
Visibility—
Dew point33°
Wed, 2158° / 50°0
58 °
Allendale, Wednesday, 21 October
Overcast. High 58°, low 50°.
Pressure29.88 inHg
Wind8.6 mph SE
Humidity47%
Visibility—
Dew point36°
Thu, 2264° / 44°0
64 °
Allendale, Thursday, 22 October
Mostly clear. High 64°, low 44°.
Pressure30.06 inHg
Wind8.5 mph NE
Humidity44%
Visibility—
Dew point35°
Fri, 2366° / 45°0
66 °
Allendale, Friday, 23 October
Clear. High 66°, low 45°.
Pressure30.12 inHg
Wind19.3 mph S
Humidity48%
Visibility—
Dew point41°
Sat, 2455° / 45°0.51
55 °
Allendale, Saturday, 24 October
Rain. High 55°, low 45°.
Pressure29.91 inHg
Wind17.8 mph W
Humidity42%
Visibility—
Dew point32°
Sun, 2559° / 43°0
59 °
Allendale, Sunday, 25 October
Clear. High 59°, low 43°.
Pressure30.24 inHg
Wind8.9 mph SW
Humidity53%
Visibility—
Dew point37°
Mon, 2663° / 46°0
63 °
Allendale, Monday, 26 October
Clear. High 63°, low 46°.
Pressure30.06 inHg
Wind15.5 mph SW
Humidity37%
Visibility—
Dew point32°
Tue, 2763° / 47°0
63 °
Allendale, Tuesday, 27 October
Overcast. High 63°, low 47°.
Pressure29.88 inHg
Wind21.3 mph SW
Humidity30%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2843° / 25°0.06
43 °
Allendale, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high43°
Average low25°
Average precipitation0.06 in
Chance of precipitation20%
Record high62° (1990)
Record low-11° (2019)
Thu, 2942° / 25°0.08
42 °
Allendale, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.08 in
Chance of precipitation30%
Record high63° (1968)
Record low-11° (2019)
Fri, 3039° / 22°0.05
39 °
Allendale, Friday, 30 October
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.05 in
Chance of precipitation28%
Record high60° (2016)
Record low-17° (2019)
Sat, 3139° / 22°0.06
39 °
Allendale, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.06 in
Chance of precipitation25%
Record high59° (2014)
Record low-13° (1972)
Sun, 0138° / 22°0.06
38 °
Allendale, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high38°
Average low22°
Average precipitation0.06 in
Chance of precipitation25%
Record high58° (2014)
Record low-10° (2002)
Mon, 0238° / 21°0.04
38 °
Allendale, Monday, 2 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.04 in
Chance of precipitation18%
Record high59° (2008)
Record low-26° (1991)
Tue, 0338° / 21°0.05
38 °
Allendale, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.05 in
Chance of precipitation18%
Record high58° (2015)
Record low-12° (1991)
Wed, 0439° / 21°0.02
39 °
Allendale, 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 °
Allendale, 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 °
Allendale, 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 °
Allendale, 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 °
Allendale, 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 °
Allendale, 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 °
Allendale, 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)
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 Allendale, 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 Allendale, 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.