As of 02:19 CDT

Weather in Glen Oak, IL

43°Current weather

Glen Oak, Sunday, 18 October, 02:19

Clear. Feels like 38°. High 63°, low 43°.

Pressure30.42 inHg
Wind8.1 mph S
Humidity76%
Visibility6.2 mi
Dew point36°

Monthly outlook for Glen Oak, IL: average high 63°, average low 48.8°. That is 3.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.4 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 24 October (69.1°), the coolest 26 October (41.2°).

63°/48.8°
Average high / low
+3.5°
Above normal
2 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October62.9°57.8°+2.8°
28 October – 6 November63.3°53.9°+5.2°
7 November – 16 Novemberat normal48.3°—

October records over 66 years

87.4°3 October 2025All-time high
22.5°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Glendale Heights (3 mi).

Mon, 1962° / 44°0Clear
62 °Clear

Glen Oak, Monday, 19 October

Clear. High 62°, low 44°.

Pressure30.39 inHg
Wind3.3 mph SW
Humidity62%
Visibility6.2 mi
Dew point46°
Tue, 2064° / 45°0Clear
64 °Clear

Glen Oak, Tuesday, 20 October

Clear. High 64°, low 45°.

Pressure30.42 inHg
Wind3.4 mph SE
Humidity64%
Visibility6.2 mi
Dew point49°
Wed, 2165° / 44°0Clear
65 °Clear

Glen Oak, Wednesday, 21 October

Clear. High 65°, low 44°.

Pressure30.30 inHg
Wind3.3 mph SW
Humidity62%
Visibility6.2 mi
Dew point48°
Thu, 2265° / 48°0.04Light rain
65 °Light rain

Glen Oak, Thursday, 22 October

Light rain. High 65°, low 48°.

Pressure30.27 inHg
Wind6.2 mph NE
Humidity60%
Visibility—
Dew point49°
Fri, 2368° / 51°0Partly cloudy
68 °Partly cloudy

Glen Oak, Friday, 23 October

Partly cloudy. High 68°, low 51°.

Pressure30.36 inHg
Wind7.8 mph SE
Humidity57%
Visibility—
Dew point47°
Sat, 2469° / 56°0Overcast
69 °Overcast

Glen Oak, Saturday, 24 October

Overcast. High 69°, low 56°.

Pressure30.21 inHg
Wind13.2 mph S
Humidity39%
Visibility—
Dew point40°
Sun, 2560° / 47°0Overcast
60 °Overcast

Glen Oak, Sunday, 25 October

Overcast. High 60°, low 47°.

Pressure30.39 inHg
Wind11 mph NW
Humidity58%
Visibility—
Dew point35°
Mon, 2654° / 41°0Clear
54 °Clear

Glen Oak, Monday, 26 October

Clear. High 54°, low 41°.

Pressure30.42 inHg
Wind6.4 mph W
Humidity40%
Visibility—
Dew point28°
Tue, 2757° / 42°0Overcast
57 °Overcast

Glen Oak, Tuesday, 27 October

Overcast. High 57°, low 42°.

Pressure30.33 inHg
Wind7.7 mph SW
Humidity34%
Visibility—
Dew point26°
Wed, 2858° / 50°0.02Light rain
58 °Light rain

Glen Oak, Wednesday, 28 October

Light rain. High 58°, low 50°.

Pressure30.09 inHg
Wind13.5 mph S
Humidity72%
Visibility—
Dew point47°
Thu, 2962° / 58°0.17Light rain
62 °Light rain

Glen Oak, Thursday, 29 October

Light rain. High 62°, low 58°.

Pressure29.83 inHg
Wind17.4 mph S
Humidity69%
Visibility—
Dew point48°
Fri, 3065° / 55°0.01Light rain
65 °Light rain

Glen Oak, Friday, 30 October

Light rain. High 65°, low 55°.

Pressure29.91 inHg
Wind8.8 mph W
Humidity26%
Visibility—
Dew point28°
Sat, 3166° / 53°0.13Light rain
66 °Light rain

Glen Oak, Saturday, 31 October

Light rain. High 66°, low 53°.

Pressure30.06 inHg
Wind11.5 mph E
Humidity45%
Visibility—
Dew point42°
Sun, 0164° / 54°0.01Light rain
64 °Light rain

Glen Oak, Sunday, 1 November

Light rain. High 64°, low 54°.

Pressure29.80 inHg
Wind17 mph W
Humidity47%
Visibility—
Dew point43°
Mon, 0264° / 49°0Mostly clear
64 °Mostly clear

Glen Oak, Monday, 2 November

Mostly clear. High 64°, low 49°.

Pressure30.09 inHg
Wind9.6 mph S
Humidity33%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0352° / 39°0.06Climate normal
52 °Climate normal

Glen Oak, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.06 in
Chance of precipitation27%
Record high72° (1987)
Record low17° (1991)
Wed, 0452° / 41°0.09Climate normal
52 °Climate normal

Glen Oak, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low41°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2015)
Record low15° (1991)
Thu, 0552° / 39°0.11Climate normal
52 °Climate normal

Glen Oak, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation27%
Record high74° (1978)
Record low18° (1991)
Fri, 0652° / 37°0.07Climate normal
52 °Climate normal

Glen Oak, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low37°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (1975)
Record low23° (1991)
Sat, 0751° / 37°0.05Climate normal
51 °Climate normal

Glen Oak, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.05 in
Chance of precipitation17%
Record high68° (2020)
Record low16° (1991)
Sun, 0851° / 37°0.04Climate normal
51 °Climate normal

Glen Oak, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.04 in
Chance of precipitation18%
Record high73° (2020)
Record low13° (1991)
Mon, 0951° / 38°0.11Climate normal
51 °Climate normal

Glen Oak, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (1999)
Record low17° (1991)
Tue, 1050° / 37°0.1Climate normal
50 °Climate normal

Glen Oak, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low37°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (2020)
Record low17° (2017)
Wed, 1147° / 34°0.07Climate normal
47 °Climate normal

Glen Oak, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (1964)
Record low15° (2019)
Thu, 1246° / 33°0.06Climate normal
46 °Climate normal

Glen Oak, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.06 in
Chance of precipitation22%
Record high66° (1964)
Record low2° (2019)
Fri, 1346° / 33°0.04Climate normal
46 °Climate normal

Glen Oak, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1999)
Record low3° (2019)
Sat, 1447° / 33°0.07Climate normal
47 °Climate normal

Glen Oak, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (1971)
Record low13° (1986)
Sun, 1547° / 34°0.09Climate normal
47 °Climate normal

Glen Oak, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low19° (1982)
Mon, 1647° / 33°0.05Climate normal
47 °Climate normal

Glen Oak, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.05 in
Chance of precipitation18%
Record high63° (1988)
Record low20° (1997)

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 Glen Oak, 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 Glen Oak, 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.