Monthly outlook for Custer Park, IL: average high 60.7°, average low 47.9°. That is 3.5° above the climate normal for October. Precipitation is expected on 10 days (about 6.1 inches), against a normal of 4 days and 1.5 inches. The warmest day looks like 28 October (74.6°), the coolest 7 November (37.6°).
60.7°/47.9°
Average high / low
+3.5°
Above normal
10 / 4
Wet days / normal
6.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
28 October – 6 November
64.2°
56.1°
+4.5°
7 November – 16 November
54.9°
50.5°
+2.4°
17 November – 26 November
at normal
46.9°
—
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).
Thu, 2970° / 51°0.02
70 °
Custer Park, Thursday, 29 October
Light rain. High 70°, low 51°.
Pressure30.09 inHg
Wind8.8 mph W
Humidity61%
Visibility6.2 mi
Dew point56°
Fri, 3065° / 46°0.07
65 °
Custer Park, Friday, 30 October
Rain. High 65°, low 46°.
Pressure30.33 inHg
Wind6.3 mph SE
Humidity57%
Visibility6.2 mi
Dew point47°
Sat, 3159° / 51°0.65
59 °
Custer Park, Saturday, 31 October
Heavy rain. High 59°, low 51°.
Pressure30.30 inHg
Wind4.8 mph SE
Humidity94%
Visibility6.2 mi
Dew point53°
Sun, 0169° / 49°0
69 °
Custer Park, Sunday, 1 November
Overcast. High 69°, low 49°.
Pressure30.30 inHg
Wind7.6 mph SE
Humidity62%
Visibility—
Dew point53°
Mon, 0271° / 57°0.19
71 °
Custer Park, Monday, 2 November
Light rain. High 71°, low 57°.
Pressure30.09 inHg
Wind14 mph SE
Humidity65%
Visibility—
Dew point55°
Tue, 0362° / 58°1.71
62 °
Custer Park, Tuesday, 3 November
Heavy rain. High 62°, low 58°.
Pressure29.77 inHg
Wind20.5 mph SE
Humidity92%
Visibility—
Dew point56°
Wed, 0461° / 58°1.99
61 °
Custer Park, Wednesday, 4 November
Rain. High 61°, low 58°.
Pressure29.85 inHg
Wind13.2 mph SE
Humidity94%
Visibility—
Dew point57°
Thu, 0562° / 51°0.69
62 °
Custer Park, Thursday, 5 November
Rain. High 62°, low 51°.
Pressure29.56 inHg
Wind18.9 mph N
Humidity77%
Visibility—
Dew point54°
Fri, 0650° / 41°0.06
50 °
Custer Park, Friday, 6 November
Light rain. High 50°, low 41°.
Pressure30.06 inHg
Wind19.5 mph N
Humidity57%
Visibility—
Dew point33°
Sat, 0751° / 38°0
51 °
Custer Park, Saturday, 7 November
Overcast. High 51°, low 38°.
Pressure30.27 inHg
Wind7.4 mph NW
Humidity59%
Visibility—
Dew point34°
Sun, 0854° / 39°0
54 °
Custer Park, Sunday, 8 November
Clear. High 54°, low 39°.
Pressure30.27 inHg
Wind6.5 mph S
Humidity49%
Visibility—
Dew point32°
Mon, 0957° / 40°0
57 °
Custer Park, Monday, 9 November
Mostly clear. High 57°, low 40°.
Pressure30.21 inHg
Wind11.3 mph S
Humidity41%
Visibility—
Dew point30°
Tue, 1057° / 43°0.09
57 °
Custer Park, Tuesday, 10 November
Light rain. High 57°, low 43°.
Pressure29.97 inHg
Wind15.9 mph S
Humidity57%
Visibility—
Dew point39°
Wed, 1156° / 48°0.41
56 °
Custer Park, Wednesday, 11 November
Rain. High 56°, low 48°.
Pressure29.68 inHg
Wind13.4 mph W
Humidity60%
Visibility—
Dew point42°
Thu, 1254° / 43°0.21
54 °
Custer Park, Thursday, 12 November
Light rain. High 54°, low 43°.
Pressure29.38 inHg
Wind14.7 mph SW
Humidity86%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Mon, 2346° / 32°0.08
46 °
Custer Park, Monday, 23 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation30%
Record high66° (2003)
Record low13° (1970)
Tue, 2445° / 30°0.08
45 °
Custer Park, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high45°
Average low30°
Average precipitation0.08 in
Chance of precipitation25%
Record high68° (1966)
Record low13° (1970)
Wed, 2545° / 32°0.07
45 °
Custer Park, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.07 in
Chance of precipitation33%
Record high62° (2006)
Record low16° (1991)
Thu, 2646° / 31°0.12
46 °
Custer Park, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.12 in
Chance of precipitation42%
Record high65° (1990)
Record low6° (1977)
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.