Monthly outlook for Glendale Heights, IL: average high 47.5°, average low 37.1°. That is 0.9° above the climate normal for November. Precipitation is expected on 2 days (about 0.5 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 10 November (62°), the coolest 25 November (27°).
47.5°/37.1°
Average high / low
+0.9°
Above normal
2 / 4
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
10 November – 19 November
49.4°
47.1°
+1.3°
20 November – 29 November
44.5°
42.7°
+0.9°
30 November – 9 December
at normal
37.5°
—
November records over 66 years
74.3°2 November 1961All-time high
2.3°12 November 2019All-time low
Wed, 1159° / 41°0.01
59 °
Glendale Heights, Wednesday, 11 November
Light rain. High 59°, low 41°.
Pressure29.80 inHg
Wind4.2 mph NE
Humidity71%
Visibility6.2 mi
Dew point46°
Thu, 1243° / 35°0.04
43 °
Glendale Heights, Thursday, 12 November
Light rain. High 43°, low 35°.
Pressure29.94 inHg
Wind16.2 mph N
Humidity73%
Visibility6.2 mi
Dew point32°
Fri, 1342° / 33°0
42 °
Glendale Heights, Friday, 13 November
Overcast. High 42°, low 33°.
Pressure30.03 inHg
Wind11.1 mph N
Humidity63%
Visibility6.2 mi
Dew point25°
Sat, 1443° / 28°0
43 °
Glendale Heights, Saturday, 14 November
Clear. High 43°, low 28°.
Pressure30.24 inHg
Wind5.8 mph NW
Humidity66%
Visibility—
Dew point29°
Sun, 1546° / 31°0
46 °
Glendale Heights, Sunday, 15 November
Partly cloudy. High 46°, low 31°.
Pressure30.42 inHg
Wind3.8 mph NE
Humidity59%
Visibility—
Dew point31°
Mon, 1648° / 37°0
48 °
Glendale Heights, Monday, 16 November
Overcast. High 48°, low 37°.
Pressure30.53 inHg
Wind5.9 mph NE
Humidity54%
Visibility—
Dew point31°
Tue, 1748° / 37°0
48 °
Glendale Heights, Tuesday, 17 November
Clear. High 48°, low 37°.
Pressure30.47 inHg
Wind4 mph S
Humidity52%
Visibility—
Dew point29°
Wed, 1850° / 37°0
50 °
Glendale Heights, Wednesday, 18 November
Clear. High 50°, low 37°.
Pressure30.42 inHg
Wind7.4 mph S
Humidity52%
Visibility—
Dew point30°
Thu, 1952° / 39°0
52 °
Glendale Heights, Thursday, 19 November
Overcast. High 52°, low 39°.
Pressure30.33 inHg
Wind10.2 mph S
Humidity43%
Visibility—
Dew point28°
Fri, 2050° / 45°0
50 °
Glendale Heights, Friday, 20 November
Overcast. High 50°, low 45°.
Pressure30.27 inHg
Wind7.5 mph S
Humidity60%
Visibility—
Dew point36°
Sat, 2151° / 47°0.09
51 °
Glendale Heights, Saturday, 21 November
Light rain. High 51°, low 47°.
Pressure30.06 inHg
Wind11.9 mph S
Humidity44%
Visibility—
Dew point29°
Sun, 2251° / 45°0.38
51 °
Glendale Heights, Sunday, 22 November
Rain. High 51°, low 45°.
Pressure29.68 inHg
Wind14.4 mph S
Humidity96%
Visibility—
Dew point47°
Mon, 2344° / 38°0.01
44 °
Glendale Heights, Monday, 23 November
Light rain. High 44°, low 38°.
Pressure29.62 inHg
Wind14.8 mph SW
Humidity65%
Visibility—
Dew point32°
Tue, 2439° / 32°0.01
39 °
Glendale Heights, Tuesday, 24 November
Light snow. High 39°, low 32°.
Pressure29.88 inHg
Wind15.9 mph W
Humidity64%
Visibility—
Dew point27°
Wed, 2533° / 27°0
33 °
Glendale Heights, Wednesday, 25 November
Partly cloudy. High 33°, low 27°.
Pressure30.21 inHg
Wind14.8 mph W
Humidity45%
Visibility—
Dew point13°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2643° / 30°0.11
43 °
Glendale Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.11 in
Chance of precipitation42%
Record high63° (1990)
Record low3° (1977)
Fri, 2742° / 30°0.2
42 °
Glendale Heights, Friday, 27 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.2 in
Chance of precipitation52%
Record high65° (1990)
Record low8° (1977)
Sat, 2840° / 28°0.11
40 °
Glendale Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.11 in
Chance of precipitation27%
Record high63° (1998)
Record low5° (2018)
Sun, 2940° / 28°0.06
40 °
Glendale Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.06 in
Chance of precipitation32%
Record high65° (1998)
Record low7° (1976)
Mon, 3041° / 28°0.07
41 °
Glendale Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high64° (1998)
Record low10° (1964)
Tue, 0138° / 27°0.15
38 °
Glendale Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.15 in
Chance of precipitation40%
Record high64° (1970)
Record low12° (1985)
Wed, 0239° / 27°0.06
39 °
Glendale Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation32%
Record high68° (1982)
Record low4° (1976)
Thu, 0338° / 27°0.08
38 °
Glendale Heights, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.08 in
Chance of precipitation32%
Record high68° (2012)
Record low4° (2006)
Fri, 0438° / 26°0.06
38 °
Glendale Heights, Friday, 4 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation25%
Record high64° (1998)
Record low-3° (1991)
Sat, 0538° / 25°0.08
38 °
Glendale Heights, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.08 in
Chance of precipitation32%
Record high66° (2001)
Record low-4° (1991)
Sun, 0636° / 24°0.06
36 °
Glendale Heights, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.06 in
Chance of precipitation22%
Record high61° (1998)
Record low-2° (2007)
Mon, 0735° / 24°0.12
35 °
Glendale Heights, Monday, 7 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.12 in
Chance of precipitation27%
Record high56° (1980)
Record low-8° (1972)
Tue, 0835° / 24°0.07
35 °
Glendale Heights, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.07 in
Chance of precipitation27%
Record high62° (1991)
Record low-4° (2006)
Wed, 0936° / 23°0.08
36 °
Glendale Heights, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.08 in
Chance of precipitation40%
Record high53° (2023)
Record low-5° (1995)
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 Glendale Heights, 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 Glendale Heights, 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.