Monthly outlook for Custer Park, IL: average high 65.1°, average low 50.3°. That is 4.9° above the climate normal for October. Precipitation is expected on 4 days (about 1.0 inches), against a normal of 4 days and 1.6 inches. The warmest day looks like 30 October (77.1°), the coolest 5 November (41.2°).
65.1°/50.3°
Average high / low
+4.9°
Above normal
4 / 4
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
24 October – 2 November
69.9°
57.8°
+6.7°
3 November – 12 November
57.1°
52.6°
+2.5°
13 November – 22 November
at normal
48.3°
—
October records over 66 years
88.9°7 October 2007All-time high
22.6°24 October 1981All-time low
Climate normals and records are computed from the nearest reference point — Lorenzo (9 mi).
Sun, 2573° / 49°0
73 °
Custer Park, Sunday, 25 October
Overcast. High 73°, low 49°.
Pressure30.42 inHg
Wind4.5 mph S
Humidity54%
Visibility6.2 mi
Dew point51°
Mon, 2668° / 50°0
68 °
Custer Park, Monday, 26 October
Overcast. High 68°, low 50°.
Pressure30.33 inHg
Wind3.5 mph NE
Humidity64%
Visibility6.2 mi
Dew point54°
Tue, 2771° / 51°0
71 °
Custer Park, Tuesday, 27 October
Overcast. High 71°, low 51°.
Pressure30.24 inHg
Wind4.7 mph SE
Humidity69%
Visibility6.2 mi
Dew point55°
Wed, 2873° / 53°0
73 °
Custer Park, Wednesday, 28 October
Clear. High 73°, low 53°.
Pressure30.15 inHg
Wind9.6 mph S
Humidity56%
Visibility6.2 mi
Dew point52°
Thu, 2968° / 56°0.1
68 °
Custer Park, Thursday, 29 October
Light rain. High 68°, low 56°.
Pressure30.18 inHg
Wind7.9 mph N
Humidity70%
Visibility—
Dew point56°
Fri, 3077° / 55°0
77 °
Custer Park, Friday, 30 October
Partly cloudy. High 77°, low 55°.
Pressure30.15 inHg
Wind8.5 mph S
Humidity42%
Visibility—
Dew point47°
Sat, 3172° / 65°0.01
72 °
Custer Park, Saturday, 31 October
Light rain. High 72°, low 65°.
Pressure30.03 inHg
Wind17.2 mph S
Humidity38%
Visibility—
Dew point43°
Sun, 0171° / 59°0.38
71 °
Custer Park, Sunday, 1 November
Rain. High 71°, low 59°.
Pressure29.71 inHg
Wind21.2 mph S
Humidity57%
Visibility—
Dew point54°
Mon, 0257° / 42°0.15
57 °
Custer Park, Monday, 2 November
Light rain. High 57°, low 42°.
Pressure29.53 inHg
Wind19.4 mph W
Humidity81%
Visibility—
Dew point38°
Tue, 0355° / 51°0.35
55 °
Custer Park, Tuesday, 3 November
Rain. High 55°, low 51°.
Pressure29.53 inHg
Wind21.3 mph N
Humidity89%
Visibility—
Dew point51°
Wed, 0453° / 48°0.01
53 °
Custer Park, Wednesday, 4 November
Light rain. High 53°, low 48°.
Pressure29.68 inHg
Wind15.9 mph NW
Humidity74%
Visibility—
Dew point44°
Thu, 0554° / 41°0
54 °
Custer Park, Thursday, 5 November
Overcast. High 54°, low 41°.
Pressure30.03 inHg
Wind7.7 mph E
Humidity55%
Visibility—
Dew point35°
Fri, 0658° / 44°0
58 °
Custer Park, Friday, 6 November
Overcast. High 58°, low 44°.
Pressure30.21 inHg
Wind4.8 mph E
Humidity51%
Visibility—
Dew point37°
Sat, 0760° / 45°0
60 °
Custer Park, Saturday, 7 November
Clear. High 60°, low 45°.
Pressure30.27 inHg
Wind5.6 mph NW
Humidity53%
Visibility—
Dew point40°
Sun, 0864° / 47°0
64 °
Custer Park, Sunday, 8 November
Clear. High 64°, low 47°.
Pressure30.15 inHg
Wind9.8 mph SW
Humidity48%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Mon, 0954° / 39°0.14
54 °
Custer Park, Monday, 9 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.14 in
Chance of precipitation37%
Record high73° (1999)
Record low16° (1991)
Tue, 1052° / 38°0.14
52 °
Custer Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.14 in
Chance of precipitation32%
Record high72° (2020)
Record low18° (2018)
Wed, 1149° / 35°0.07
49 °
Custer Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.07 in
Chance of precipitation28%
Record high73° (1964)
Record low19° (2019)
Thu, 1248° / 34°0.07
48 °
Custer Park, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation25%
Record high69° (1964)
Record low9° (2019)
Fri, 1349° / 34°0.06
49 °
Custer Park, Friday, 13 November
Climate normal for this date — 60-year average.
Average high49°
Average low34°
Average precipitation0.06 in
Chance of precipitation20%
Record high72° (1999)
Record low9° (1986)
Sat, 1450° / 34°0.07
50 °
Custer Park, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high50°
Average low34°
Average precipitation0.07 in
Chance of precipitation33%
Record high72° (1971)
Record low13° (1986)
Sun, 1549° / 35°0.09
49 °
Custer Park, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation32%
Record high69° (2025)
Record low19° (1976)
Mon, 1648° / 34°0.05
48 °
Custer Park, Monday, 16 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.05 in
Chance of precipitation20%
Record high68° (1971)
Record low22° (1997)
Tue, 1749° / 35°0.09
49 °
Custer Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.09 in
Chance of precipitation27%
Record high72° (2016)
Record low16° (2005)
Wed, 1849° / 36°0.16
49 °
Custer Park, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.16 in
Chance of precipitation28%
Record high69° (1999)
Record low12° (2014)
Thu, 1949° / 35°0.08
49 °
Custer Park, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high49°
Average low35°
Average precipitation0.08 in
Chance of precipitation30%
Record high66° (1979)
Record low18° (2014)
Fri, 2048° / 34°0.1
48 °
Custer Park, Friday, 20 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.1 in
Chance of precipitation28%
Record high65° (2007)
Record low15° (2022)
Sat, 2146° / 32°0.1
46 °
Custer Park, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (1990)
Record low10° (1964)
Sun, 2247° / 31°0.05
47 °
Custer Park, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high47°
Average low31°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (2010)
Record low6° (2015)
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 Custer Park, IL 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 Custer Park, IL 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.