Monthly outlook for Oakbrook Terrace, IL: average high 63.9°, average low 50.7°. That is 4.9° above the climate normal for October. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (71°), the coolest 4 November (41.8°).
63.9°/50.7°
Average high / low
+4.9°
Above normal
5 / 5
Wet days / normal
2.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
65.7°
56.6°
+5.1°
2 November – 11 November
61°
51.8°
+5.1°
12 November – 21 November
at normal
46.9°
—
October records over 66 years
87.6°3 October 2025All-time high
25.5°26 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Bellwood (5 mi).
Sat, 2469° / 48°0
69 °
Oakbrook Terrace, Saturday, 24 October
Overcast. High 69°, low 48°.
Pressure30.39 inHg
Wind5.1 mph S
Humidity68%
Visibility6.2 mi
Dew point51°
Sun, 2568° / 48°0
68 °
Oakbrook Terrace, Sunday, 25 October
Partly cloudy. High 68°, low 48°.
Pressure30.39 inHg
Wind4.8 mph SW
Humidity64%
Visibility6.2 mi
Dew point52°
Mon, 2663° / 51°0
63 °
Oakbrook Terrace, Monday, 26 October
Overcast. High 63°, low 51°.
Pressure30.36 inHg
Wind6.4 mph NE
Humidity73%
Visibility6.2 mi
Dew point54°
Tue, 2763° / 51°0
63 °
Oakbrook Terrace, Tuesday, 27 October
Overcast. High 63°, low 51°.
Pressure30.30 inHg
Wind5 mph E
Humidity76%
Visibility6.2 mi
Dew point52°
Wed, 2868° / 54°0
68 °
Oakbrook Terrace, Wednesday, 28 October
Mostly clear. High 68°, low 54°.
Pressure30.09 inHg
Wind10.5 mph SW
Humidity61%
Visibility—
Dew point51°
Thu, 2969° / 51°0.05
69 °
Oakbrook Terrace, Thursday, 29 October
Light rain. High 69°, low 51°.
Pressure30.15 inHg
Wind10.1 mph W
Humidity56%
Visibility—
Dew point49°
Fri, 3063° / 56°0
63 °
Oakbrook Terrace, Friday, 30 October
Light rain. High 63°, low 56°.
Pressure30.21 inHg
Wind7.9 mph E
Humidity43%
Visibility—
Dew point39°
Sat, 3160° / 56°0.22
60 °
Oakbrook Terrace, Saturday, 31 October
Light rain. High 60°, low 56°.
Pressure30.09 inHg
Wind10.4 mph S
Humidity79%
Visibility—
Dew point52°
Sun, 0163° / 57°0.07
63 °
Oakbrook Terrace, Sunday, 1 November
Light rain. High 63°, low 57°.
Pressure30.15 inHg
Wind8.5 mph S
Humidity71%
Visibility—
Dew point51°
Mon, 0260° / 57°1.37
60 °
Oakbrook Terrace, Monday, 2 November
Rain. High 60°, low 57°.
Pressure30.03 inHg
Wind10.5 mph E
Humidity94%
Visibility—
Dew point56°
Tue, 0364° / 48°0.58
64 °
Oakbrook Terrace, Tuesday, 3 November
Rain. High 64°, low 48°.
Pressure29.74 inHg
Wind14.7 mph SW
Humidity91%
Visibility—
Dew point61°
Wed, 0454° / 42°0
54 °
Oakbrook Terrace, Wednesday, 4 November
Light rain. High 54°, low 42°.
Pressure30.36 inHg
Wind11.1 mph NW
Humidity33%
Visibility—
Dew point23°
Thu, 0560° / 46°0
60 °
Oakbrook Terrace, Thursday, 5 November
Clear. High 60°, low 46°.
Pressure30.00 inHg
Wind14.5 mph SW
Humidity39%
Visibility—
Dew point32°
Fri, 0663° / 48°0
63 °
Oakbrook Terrace, Friday, 6 November
Mostly clear. High 63°, low 48°.
Pressure29.91 inHg
Wind7.5 mph SW
Humidity47%
Visibility—
Dew point39°
Sat, 0765° / 53°0
65 °
Oakbrook Terrace, Saturday, 7 November
Overcast. High 65°, low 53°.
Pressure30.00 inHg
Wind7.2 mph S
Humidity60%
Visibility—
Dew point49°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0851° / 39°0.06
51 °
Oakbrook Terrace, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation18%
Record high73° (2020)
Record low15° (1991)
Mon, 0952° / 39°0.11
52 °
Oakbrook Terrace, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (1999)
Record low19° (1991)
Tue, 1050° / 38°0.1
50 °
Oakbrook Terrace, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation32%
Record high72° (2020)
Record low17° (2017)
Wed, 1148° / 36°0.07
48 °
Oakbrook Terrace, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.07 in
Chance of precipitation28%
Record high70° (1964)
Record low16° (2019)
Thu, 1246° / 35°0.06
46 °
Oakbrook Terrace, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (1964)
Record low4° (2019)
Fri, 1347° / 34°0.04
47 °
Oakbrook Terrace, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.04 in
Chance of precipitation17%
Record high69° (1999)
Record low2° (2019)
Sat, 1448° / 35°0.07
48 °
Oakbrook Terrace, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (1971)
Record low14° (1986)
Sun, 1547° / 35°0.09
47 °
Oakbrook Terrace, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation28%
Record high69° (2025)
Record low20° (1982)
Mon, 1647° / 35°0.05
47 °
Oakbrook Terrace, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high63° (1988)
Record low21° (1997)
Tue, 1748° / 35°0.08
48 °
Oakbrook Terrace, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (2016)
Record low16° (2014)
Wed, 1848° / 36°0.12
48 °
Oakbrook Terrace, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.12 in
Chance of precipitation28%
Record high67° (2016)
Record low11° (2014)
Thu, 1947° / 35°0.07
47 °
Oakbrook Terrace, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (1983)
Record low18° (2014)
Fri, 2046° / 34°0.08
46 °
Oakbrook Terrace, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.08 in
Chance of precipitation28%
Record high63° (2003)
Record low14° (2022)
Sat, 2144° / 33°0.1
44 °
Oakbrook Terrace, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.1 in
Chance of precipitation25%
Record high67° (1990)
Record low11° (1964)
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 Oakbrook Terrace, 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 Oakbrook Terrace, 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.