Monthly outlook for West Harrison, IN: average high 65.2°, average low 44.6°. That is 2.6° above the climate normal for October. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 21 October (72.8°), the coolest 30 October (38.6°).
65.2°/44.6°
Average high / low
+2.6°
Above normal
2 / 5
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
66.4°
61.2°
+2.9°
30 October – 8 November
63.2°
57.9°
+3°
9 November – 18 November
at normal
52.4°
—
October records over 66 years
91.4°2 October 2019All-time high
25.5°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Northbrook (13 mi).
Wed, 2173° / 42°0
73 °
West Harrison, Wednesday, 21 October
Clear. High 73°, low 42°.
Pressure30.27 inHg
Wind0.9 mph E
Humidity49%
Visibility6.2 mi
Dew point45°
Thu, 2272° / 43°0
72 °
West Harrison, Thursday, 22 October
Clear. High 72°, low 43°.
Pressure30.24 inHg
Wind4.9 mph NE
Humidity50%
Visibility6.2 mi
Dew point46°
Fri, 2369° / 48°0
69 °
West Harrison, Friday, 23 October
Partly cloudy. High 69°, low 48°.
Pressure30.36 inHg
Wind5.2 mph E
Humidity62%
Visibility6.2 mi
Dew point50°
Sat, 2467° / 46°0
67 °
West Harrison, Saturday, 24 October
Clear. High 67°, low 46°.
Pressure30.45 inHg
Wind3.5 mph E
Humidity56%
Visibility6.2 mi
Dew point44°
Sun, 2571° / 45°0
71 °
West Harrison, Sunday, 25 October
Overcast. High 71°, low 45°.
Pressure30.42 inHg
Wind4.8 mph E
Humidity45%
Visibility—
Dew point45°
Mon, 2672° / 48°0
72 °
West Harrison, Monday, 26 October
Overcast. High 72°, low 48°.
Pressure30.27 inHg
Wind6.2 mph SW
Humidity39%
Visibility—
Dew point43°
Tue, 2761° / 45°0
61 °
West Harrison, Tuesday, 27 October
Overcast. High 61°, low 45°.
Pressure30.18 inHg
Wind13.2 mph N
Humidity58%
Visibility—
Dew point45°
Wed, 2850° / 45°0.03
50 °
West Harrison, Wednesday, 28 October
Light rain. High 50°, low 45°.
Pressure30.27 inHg
Wind9.5 mph NE
Humidity60%
Visibility—
Dew point35°
Thu, 2957° / 39°0
57 °
West Harrison, Thursday, 29 October
Clear. High 57°, low 39°.
Pressure30.21 inHg
Wind7.2 mph NW
Humidity35%
Visibility—
Dew point26°
Fri, 3058° / 39°0
58 °
West Harrison, Friday, 30 October
Clear. High 58°, low 39°.
Pressure30.24 inHg
Wind5.7 mph E
Humidity35%
Visibility—
Dew point28°
Sat, 3170° / 41°0.01
70 °
West Harrison, Saturday, 31 October
Light rain. High 70°, low 41°.
Pressure30.09 inHg
Wind10.7 mph S
Humidity44%
Visibility—
Dew point40°
Sun, 0166° / 55°0.24
66 °
West Harrison, Sunday, 1 November
Light rain. High 66°, low 55°.
Pressure30.09 inHg
Wind9.5 mph S
Humidity54%
Visibility—
Dew point47°
Mon, 0270° / 51°0.23
70 °
West Harrison, Monday, 2 November
Rain. High 70°, low 51°.
Pressure30.06 inHg
Wind10.7 mph NW
Humidity55%
Visibility—
Dew point51°
Tue, 0357° / 43°0
57 °
West Harrison, Tuesday, 3 November
Clear. High 57°, low 43°.
Pressure30.24 inHg
Wind6.9 mph N
Humidity39%
Visibility—
Dew point31°
Wed, 0458° / 44°0
58 °
West Harrison, Wednesday, 4 November
Overcast. High 58°, low 44°.
Pressure30.15 inHg
Wind5.8 mph NE
Humidity31%
Visibility—
Dew point25°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0556° / 43°0.08
56 °
West Harrison, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.08 in
Chance of precipitation30%
Record high76° (2024)
Record low21° (1991)
Fri, 0656° / 41°0.09
56 °
West Harrison, Friday, 6 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.09 in
Chance of precipitation33%
Record high75° (1975)
Record low27° (1995)
Sat, 0755° / 40°0.11
55 °
West Harrison, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.11 in
Chance of precipitation32%
Record high70° (2020)
Record low24° (1971)
Sun, 0855° / 40°0.04
55 °
West Harrison, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.04 in
Chance of precipitation18%
Record high77° (2023)
Record low21° (1991)
Mon, 0956° / 41°0.11
56 °
West Harrison, Monday, 9 November
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.11 in
Chance of precipitation33%
Record high75° (2020)
Record low21° (1991)
Tue, 1055° / 40°0.16
55 °
West Harrison, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.16 in
Chance of precipitation37%
Record high76° (2020)
Record low21° (2018)
Wed, 1153° / 38°0.13
53 °
West Harrison, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.13 in
Chance of precipitation28%
Record high69° (1964)
Record low22° (2025)
Thu, 1251° / 37°0.11
51 °
West Harrison, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation30%
Record high69° (1985)
Record low8° (2019)
Fri, 1351° / 37°0.07
51 °
West Harrison, Friday, 13 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.07 in
Chance of precipitation25%
Record high71° (2010)
Record low6° (2019)
Sat, 1452° / 37°0.07
52 °
West Harrison, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (2011)
Record low19° (1986)
Sun, 1551° / 38°0.16
51 °
West Harrison, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.16 in
Chance of precipitation35%
Record high71° (1971)
Record low22° (1969)
Mon, 1651° / 37°0.09
51 °
West Harrison, Monday, 16 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (1987)
Record low25° (1967)
Tue, 1751° / 37°0.13
51 °
West Harrison, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation27%
Record high70° (1971)
Record low18° (2014)
Wed, 1852° / 38°0.1
52 °
West Harrison, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation27%
Record high73° (2016)
Record low10° (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 West Harrison, IN 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 West Harrison, IN 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.