Monthly outlook for Custer Park, IL: average high 49.4°, average low 34.9°. That is 1.6° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (62.7°), the coolest 26 November (27.1°).
49.4°/34.9°
Average high / low
+1.6°
Above normal
1 / 5
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 November – 23 November
53.4°
48.1°
+3°
24 November – 3 December
42.6°
42.8°
-0.1°
4 December – 13 December
at normal
37.8°
—
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).
Sun, 1551° / 32°0
51 °
Custer Park, Sunday, 15 November
Clear. High 51°, low 32°.
Pressure30.45 inHg
Wind2.2 mph W
Humidity55%
Visibility6.2 mi
Dew point30°
Mon, 1652° / 31°0
52 °
Custer Park, Monday, 16 November
Clear. High 52°, low 31°.
Pressure30.50 inHg
Wind5.7 mph SW
Humidity49%
Visibility6.2 mi
Dew point32°
Tue, 1754° / 33°0
54 °
Custer Park, Tuesday, 17 November
Partly cloudy. High 54°, low 33°.
Pressure30.47 inHg
Wind7.3 mph SW
Humidity52%
Visibility6.2 mi
Dew point36°
Wed, 1857° / 38°0
57 °
Custer Park, Wednesday, 18 November
Overcast. High 57°, low 38°.
Pressure30.33 inHg
Wind10.8 mph S
Humidity53%
Visibility—
Dew point37°
Thu, 1960° / 45°0.01
60 °
Custer Park, Thursday, 19 November
Light rain. High 60°, low 45°.
Pressure30.21 inHg
Wind12.2 mph SW
Humidity60%
Visibility—
Dew point44°
Fri, 2055° / 39°0
55 °
Custer Park, Friday, 20 November
Mostly clear. High 55°, low 39°.
Pressure30.33 inHg
Wind8 mph E
Humidity52%
Visibility—
Dew point33°
Sat, 2163° / 49°0.01
63 °
Custer Park, Saturday, 21 November
Light rain. High 63°, low 49°.
Pressure30.06 inHg
Wind21 mph S
Humidity50%
Visibility—
Dew point41°
Sun, 2254° / 41°0.02
54 °
Custer Park, Sunday, 22 November
Light rain. High 54°, low 41°.
Pressure30.06 inHg
Wind18.5 mph W
Humidity55%
Visibility—
Dew point29°
Mon, 2339° / 34°0
39 °
Custer Park, Monday, 23 November
Overcast. High 39°, low 34°.
Pressure30.09 inHg
Wind18.5 mph W
Humidity53%
Visibility—
Dew point22°
Tue, 2443° / 29°0
43 °
Custer Park, Tuesday, 24 November
Clear. High 43°, low 29°.
Pressure30.27 inHg
Wind6.3 mph NW
Humidity57%
Visibility—
Dew point25°
Wed, 2541° / 34°0.11
41 °
Custer Park, Wednesday, 25 November
Light rain. High 41°, low 34°.
Pressure30.21 inHg
Wind11.1 mph NW
Humidity71%
Visibility—
Dew point31°
Thu, 2638° / 27°0
38 °
Custer Park, Thursday, 26 November
Clear. High 38°, low 27°.
Pressure30.47 inHg
Wind11.4 mph N
Humidity47%
Visibility—
Dew point18°
Fri, 2743° / 28°0
43 °
Custer Park, Friday, 27 November
Mostly clear. High 43°, low 28°.
Pressure30.27 inHg
Wind7.9 mph NE
Humidity45%
Visibility—
Dew point20°
Sat, 2845° / 33°0
45 °
Custer Park, Saturday, 28 November
Overcast. High 45°, low 33°.
Pressure29.94 inHg
Wind11 mph E
Humidity35%
Visibility—
Dew point17°
Sun, 2946° / 36°0.01
46 °
Custer Park, Sunday, 29 November
Light snow. High 46°, low 36°.
Pressure30.03 inHg
Wind6.6 mph N
Humidity49%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 1136° / 24°0.11
36 °
Custer Park, Friday, 11 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.11 in
Chance of precipitation28%
Record high59° (2021)
Record low-14° (1972)
Sat, 1237° / 24°0.08
37 °
Custer Park, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high37°
Average low24°
Average precipitation0.08 in
Chance of precipitation28%
Record high66° (2015)
Record low-7° (2000)
Sun, 1338° / 24°0.06
38 °
Custer Park, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.06 in
Chance of precipitation28%
Record high63° (2015)
Record low-14° (2000)
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.