Monthly outlook for West Harrison, IN: average high 66.4°, average low 49°. That is 3.5° above the climate normal for October. Precipitation is expected on 5 days (about 1.4 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 26 October (74.4°), the coolest 30 October (36.9°).
66.4°/49°
Average high / low
+3.5°
Above normal
5 / 5
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
21 October – 30 October
69.3°
61.1°
+4.6°
31 October – 9 November
61.7°
57.5°
+2.4°
10 November – 19 November
at normal
52°
—
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).
Thu, 2272° / 43°0
72 °
West Harrison, Thursday, 22 October
Clear. High 72°, low 43°.
Pressure30.24 inHg
Wind4.8 mph NE
Humidity49%
Visibility6.2 mi
Dew point46°
Fri, 2369° / 48°0
69 °
West Harrison, Friday, 23 October
Clear. High 69°, low 48°.
Pressure30.36 inHg
Wind4.9 mph E
Humidity54%
Visibility6.2 mi
Dew point47°
Sat, 2468° / 47°0
68 °
West Harrison, Saturday, 24 October
Clear. High 68°, low 47°.
Pressure30.45 inHg
Wind4.7 mph E
Humidity53%
Visibility6.2 mi
Dew point46°
Sun, 2572° / 47°0
72 °
West Harrison, Sunday, 25 October
Mostly clear. High 72°, low 47°.
Pressure30.42 inHg
Wind4.2 mph SE
Humidity41%
Visibility—
Dew point43°
Mon, 2674° / 48°0
74 °
West Harrison, Monday, 26 October
Partly cloudy. High 74°, low 48°.
Pressure30.27 inHg
Wind4.8 mph W
Humidity37%
Visibility—
Dew point43°
Tue, 2772° / 56°0
72 °
West Harrison, Tuesday, 27 October
Overcast. High 72°, low 56°.
Pressure30.15 inHg
Wind4.9 mph SW
Humidity39%
Visibility—
Dew point43°
Wed, 2873° / 58°0
73 °
West Harrison, Wednesday, 28 October
Overcast. High 73°, low 58°.
Pressure30.09 inHg
Wind8.8 mph SW
Humidity37%
Visibility—
Dew point44°
Thu, 2962° / 43°0.02
62 °
West Harrison, Thursday, 29 October
Light rain. High 62°, low 43°.
Pressure30.12 inHg
Wind15.3 mph W
Humidity45%
Visibility—
Dew point37°
Fri, 3057° / 37°0
57 °
West Harrison, Friday, 30 October
Overcast. High 57°, low 37°.
Pressure30.27 inHg
Wind7.1 mph NW
Humidity33%
Visibility—
Dew point25°
Sat, 3157° / 38°0
57 °
West Harrison, Saturday, 31 October
Overcast. High 57°, low 38°.
Pressure30.33 inHg
Wind10.7 mph E
Humidity32%
Visibility—
Dew point24°
Sun, 0151° / 46°0.55
51 °
West Harrison, Sunday, 1 November
Rain. High 51°, low 46°.
Pressure30.18 inHg
Wind12.5 mph S
Humidity79%
Visibility—
Dew point44°
Mon, 0259° / 51°0.38
59 °
West Harrison, Monday, 2 November
Rain. High 59°, low 51°.
Pressure30.03 inHg
Wind8.3 mph S
Humidity97%
Visibility—
Dew point56°
Tue, 0369° / 57°0.04
69 °
West Harrison, Tuesday, 3 November
Light rain. High 69°, low 57°.
Pressure29.97 inHg
Wind6.4 mph W
Humidity60%
Visibility—
Dew point52°
Wed, 0463° / 58°0.36
63 °
West Harrison, Wednesday, 4 November
Rain. High 63°, low 58°.
Pressure29.94 inHg
Wind9.9 mph SE
Humidity93%
Visibility—
Dew point59°
Thu, 0572° / 64°0.05
72 °
West Harrison, Thursday, 5 November
Light rain. High 72°, low 64°.
Pressure30.00 inHg
Wind13.4 mph SW
Humidity84%
Visibility—
Dew point66°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 1952° / 38°0.11
52 °
West Harrison, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (1985)
Record low7° (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.