Monthly outlook for Custer Park, IL: average high 45.7°, average low 33.6°. That is 1.1° below the climate normal for November. Precipitation is expected on 4 days (about 2.2 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 11 November (57.7°), the coolest 24 November (18.5°).
45.7°/33.6°
Average high / low
−1.1°
Below normal
4 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 November – 20 November
49.2°
48.8°
+0.2°
21 November – 30 November
39.8°
44.5°
-2.6°
1 December – 10 December
at normal
38.9°
—
November records over 66 years
77.4°5 November 1978All-time high
5.7°22 November 2015All-time low
Climate normals and records are computed from the nearest reference point — Lorenzo (9 mi).
Thu, 1247° / 37°0
47 °
Custer Park, Thursday, 12 November
Partly cloudy. High 47°, low 37°.
Pressure29.94 inHg
Wind15.3 mph N
Humidity57%
Visibility6.2 mi
Dew point28°
Fri, 1343° / 32°0
43 °
Custer Park, Friday, 13 November
Overcast. High 43°, low 32°.
Pressure30.03 inHg
Wind13.3 mph N
Humidity62%
Visibility6.2 mi
Dew point26°
Sat, 1444° / 29°0
44 °
Custer Park, Saturday, 14 November
Clear. High 44°, low 29°.
Pressure30.24 inHg
Wind6.8 mph NW
Humidity63%
Visibility6.2 mi
Dew point27°
Sun, 1547° / 31°0
47 °
Custer Park, Sunday, 15 November
Clear. High 47°, low 31°.
Pressure30.39 inHg
Wind2.3 mph NW
Humidity57%
Visibility—
Dew point30°
Mon, 1650° / 31°0
50 °
Custer Park, Monday, 16 November
Clear. High 50°, low 31°.
Pressure30.47 inHg
Wind5.2 mph E
Humidity54%
Visibility—
Dew point31°
Tue, 1750° / 37°0
50 °
Custer Park, Tuesday, 17 November
Overcast. High 50°, low 37°.
Pressure30.42 inHg
Wind6.3 mph SE
Humidity45%
Visibility—
Dew point27°
Wed, 1852° / 36°0
52 °
Custer Park, Wednesday, 18 November
Clear. High 52°, low 36°.
Pressure30.30 inHg
Wind10.3 mph SE
Humidity42%
Visibility—
Dew point26°
Thu, 1952° / 39°0.01
52 °
Custer Park, Thursday, 19 November
Light rain. High 52°, low 39°.
Pressure30.06 inHg
Wind15 mph S
Humidity51%
Visibility—
Dew point29°
Fri, 2049° / 46°0.56
49 °
Custer Park, Friday, 20 November
Rain. High 49°, low 46°.
Pressure30.03 inHg
Wind11.9 mph E
Humidity95%
Visibility—
Dew point47°
Sat, 2153° / 46°1.04
53 °
Custer Park, Saturday, 21 November
Rain. High 53°, low 46°.
Pressure29.65 inHg
Wind15 mph N
Humidity87%
Visibility—
Dew point49°
Sun, 2240° / 30°0.01
40 °
Custer Park, Sunday, 22 November
Light rain. High 40°, low 30°.
Pressure30.03 inHg
Wind16.9 mph N
Humidity69%
Visibility—
Dew point27°
Mon, 2329° / 22°0.19
29 °
Custer Park, Monday, 23 November
Snow. High 29°, low 22°.
Pressure30.09 inHg
Wind21.7 mph NW
Humidity90%
Visibility—
Dew point24°
Tue, 2431° / 19°0
31 °
Custer Park, Tuesday, 24 November
Mostly clear. High 31°, low 19°.
Pressure30.33 inHg
Wind13.3 mph NW
Humidity48%
Visibility—
Dew point10°
Wed, 2540° / 27°0
40 °
Custer Park, Wednesday, 25 November
Overcast. High 40°, low 27°.
Pressure30.12 inHg
Wind11.2 mph S
Humidity67%
Visibility—
Dew point27°
Thu, 2647° / 34°0
47 °
Custer Park, Thursday, 26 November
Clear. High 47°, low 34°.
Pressure30.12 inHg
Wind11.1 mph SW
Humidity72%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2744° / 31°0.21
44 °
Custer Park, Friday, 27 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.21 in
Chance of precipitation45%
Record high67° (1990)
Record low14° (2013)
Sat, 2842° / 29°0.13
42 °
Custer Park, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation25%
Record high65° (1998)
Record low6° (2018)
Sun, 2942° / 29°0.07
42 °
Custer Park, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation33%
Record high67° (1998)
Record low7° (1976)
Mon, 3043° / 29°0.09
43 °
Custer Park, Monday, 30 November
Climate normal for this date — 60-year average.
Average high43°
Average low29°
Average precipitation0.09 in
Chance of precipitation28%
Record high65° (1998)
Record low11° (1964)
Tue, 0140° / 28°0.15
40 °
Custer Park, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.15 in
Chance of precipitation40%
Record high66° (1970)
Record low12° (1985)
Wed, 0241° / 28°0.06
41 °
Custer Park, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.06 in
Chance of precipitation30%
Record high70° (1982)
Record low8° (1976)
Thu, 0340° / 28°0.09
40 °
Custer Park, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation32%
Record high70° (2012)
Record low6° (1985)
Fri, 0440° / 27°0.07
40 °
Custer Park, Friday, 4 December
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (1998)
Record low-1° (1991)
Sat, 0540° / 26°0.07
40 °
Custer Park, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (2001)
Record low-1° (1991)
Sun, 0638° / 26°0.06
38 °
Custer Park, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation20%
Record high63° (1980)
Record low-1° (1964)
Mon, 0737° / 25°0.13
37 °
Custer Park, Monday, 7 December
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.13 in
Chance of precipitation28%
Record high59° (1980)
Record low-4° (1977)
Tue, 0837° / 26°0.07
37 °
Custer Park, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.07 in
Chance of precipitation27%
Record high65° (1991)
Record low-2° (2006)
Wed, 0938° / 24°0.08
38 °
Custer Park, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.08 in
Chance of precipitation40%
Record high55° (1990)
Record low-5° (1977)
Thu, 1037° / 24°0.09
37 °
Custer Park, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.09 in
Chance of precipitation25%
Record high60° (1971)
Record low-8° (1978)
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.