Monthly outlook for Arrowhead Park, IN: average high 64.5°, average low 50.3°. That is 3.1° above the climate normal for October. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 13 October (80.9°), the coolest 27 October (38°).
64.5°/50.3°
Average high / low
+3.1°
Above normal
5 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
67.9°
59.9°
+4.4°
23 October – 1 November
58.8°
56.8°
+1.1°
2 November – 11 November
at normal
52.3°
—
October records over 66 years
85.5°1 October 2019All-time high
23.4°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — North Webster (6 mi).
Wed, 1473° / 61°0.15
73 °
Arrowhead Park, Wednesday, 14 October
Rain. High 73°, low 61°.
Pressure30.03 inHg
Wind7.6 mph NE
Humidity72%
Visibility6.2 mi
Dew point60°
Thu, 1568° / 57°1.29
68 °
Arrowhead Park, Thursday, 15 October
Heavy rain. High 68°, low 57°.
Pressure30.09 inHg
Wind11.1 mph E
Humidity92%
Visibility3.0 mi
Dew point56°
Fri, 1668° / 47°0.38
68 °
Arrowhead Park, Friday, 16 October
Rain. High 68°, low 47°.
Pressure30.00 inHg
Wind23.1 mph NW
Humidity61%
Visibility6.2 mi
Dew point40°
Sat, 1756° / 40°0
56 °
Arrowhead Park, Saturday, 17 October
Clear. High 56°, low 40°.
Pressure30.47 inHg
Wind11.2 mph N
Humidity55%
Visibility—
Dew point37°
Sun, 1861° / 43°0
61 °
Arrowhead Park, Sunday, 18 October
Clear. High 61°, low 43°.
Pressure30.33 inHg
Wind11.9 mph SW
Humidity42%
Visibility—
Dew point35°
Mon, 1965° / 52°0.03
65 °
Arrowhead Park, Monday, 19 October
Light rain. High 65°, low 52°.
Pressure30.27 inHg
Wind7.6 mph S
Humidity59%
Visibility—
Dew point45°
Tue, 2063° / 55°0.19
63 °
Arrowhead Park, Tuesday, 20 October
Light rain. High 63°, low 55°.
Pressure30.30 inHg
Wind6.3 mph S
Humidity90%
Visibility—
Dew point56°
Wed, 2170° / 55°0
70 °
Arrowhead Park, Wednesday, 21 October
Mostly clear. High 70°, low 55°.
Pressure30.27 inHg
Wind9 mph S
Humidity61%
Visibility—
Dew point54°
Thu, 2274° / 56°0
74 °
Arrowhead Park, Thursday, 22 October
Partly cloudy. High 74°, low 56°.
Pressure30.12 inHg
Wind13.2 mph S
Humidity54%
Visibility—
Dew point54°
Fri, 2367° / 58°0.02
67 °
Arrowhead Park, Friday, 23 October
Light rain. High 67°, low 58°.
Pressure30.00 inHg
Wind20 mph S
Humidity63%
Visibility—
Dew point54°
Sat, 2460° / 48°0
60 °
Arrowhead Park, Saturday, 24 October
Overcast. High 60°, low 48°.
Pressure30.18 inHg
Wind13.8 mph W
Humidity44%
Visibility—
Dew point37°
Sun, 2557° / 41°0.01
57 °
Arrowhead Park, Sunday, 25 October
Light rain. High 57°, low 41°.
Pressure30.15 inHg
Wind11 mph NW
Humidity43%
Visibility—
Dew point32°
Mon, 2657° / 41°0.02
57 °
Arrowhead Park, Monday, 26 October
Light rain. High 57°, low 41°.
Pressure30.24 inHg
Wind10.6 mph NW
Humidity41%
Visibility—
Dew point32°
Tue, 2756° / 38°0
56 °
Arrowhead Park, Tuesday, 27 October
Overcast. High 56°, low 38°.
Pressure30.24 inHg
Wind10.1 mph W
Humidity46%
Visibility—
Dew point33°
Wed, 2856° / 44°0
56 °
Arrowhead Park, Wednesday, 28 October
Clear. High 56°, low 44°.
Pressure29.91 inHg
Wind19.7 mph NW
Humidity48%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2956° / 41°0.05
56 °
Arrowhead Park, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low41°
Average precipitation0.05 in
Chance of precipitation20%
Record high76° (2024)
Record low27° (1965)
Fri, 3057° / 42°0.09
57 °
Arrowhead Park, Friday, 30 October
Climate normal for this date — 60-year average.
Average high57°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high76° (2024)
Record low26° (1980)
Sat, 3157° / 43°0.12
57 °
Arrowhead Park, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low43°
Average precipitation0.12 in
Chance of precipitation40%
Record high73° (1974)
Record low24° (1988)
Sun, 0156° / 43°0.15
56 °
Arrowhead Park, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.15 in
Chance of precipitation33%
Record high75° (2016)
Record low25° (2023)
Mon, 0255° / 41°0.13
55 °
Arrowhead Park, Monday, 2 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.13 in
Chance of precipitation38%
Record high74° (1961)
Record low25° (2014)
Tue, 0353° / 40°0.05
53 °
Arrowhead Park, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.05 in
Chance of precipitation25%
Record high73° (1987)
Record low20° (1991)
Wed, 0453° / 41°0.08
53 °
Arrowhead Park, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.08 in
Chance of precipitation27%
Record high73° (2015)
Record low19° (1991)
Thu, 0553° / 40°0.07
53 °
Arrowhead Park, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1978)
Record low18° (1991)
Fri, 0652° / 38°0.07
52 °
Arrowhead Park, Friday, 6 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.07 in
Chance of precipitation33%
Record high74° (1975)
Record low24° (2010)
Sat, 0751° / 38°0.1
51 °
Arrowhead Park, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.1 in
Chance of precipitation25%
Record high68° (2020)
Record low21° (1960)
Sun, 0851° / 38°0.04
51 °
Arrowhead Park, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low22° (1991)
Mon, 0952° / 38°0.13
52 °
Arrowhead Park, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation33%
Record high73° (2020)
Record low19° (1991)
Tue, 1051° / 38°0.13
51 °
Arrowhead Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.13 in
Chance of precipitation38%
Record high72° (2020)
Record low18° (2018)
Wed, 1149° / 35°0.1
49 °
Arrowhead Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation37%
Record high69° (1964)
Record low21° (2025)
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 Arrowhead Park, 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 Arrowhead Park, 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.