Monthly outlook for Oak Park, IL: average high 62.9°, average low 50.1°. That is 3.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.2 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 24 October (69.6°), the coolest 1 November (42.6°).
62.9°/50.1°
Average high / low
+3.4°
Above normal
5 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
19 October – 28 October
64.9°
57.8°
+4°
29 October – 7 November
59.7°
54°
+3.2°
8 November – 17 November
at normal
48.3°
—
October records over 66 years
89.8°3 October 2025All-time high
26.2°26 October 1962All-time low
Tue, 2068° / 48°0
68 °
Oak Park, Tuesday, 20 October
Clear. High 68°, low 48°.
Pressure30.39 inHg
Wind3.1 mph SE
Humidity64%
Visibility6.2 mi
Dew point50°
Wed, 2166° / 44°0
66 °
Oak Park, Wednesday, 21 October
Clear. High 66°, low 44°.
Pressure30.30 inHg
Wind2.4 mph SW
Humidity58%
Visibility6.2 mi
Dew point49°
Thu, 2266° / 48°0.02
66 °
Oak Park, Thursday, 22 October
Light rain. High 66°, low 48°.
Pressure30.33 inHg
Wind3.3 mph NE
Humidity69%
Visibility6.2 mi
Dew point53°
Fri, 2363° / 48°0
63 °
Oak Park, Friday, 23 October
Clear. High 63°, low 48°.
Pressure30.39 inHg
Wind4.5 mph E
Humidity65%
Visibility—
Dew point49°
Sat, 2470° / 47°0
70 °
Oak Park, Saturday, 24 October
Overcast. High 70°, low 47°.
Pressure30.39 inHg
Wind9.7 mph S
Humidity50%
Visibility—
Dew point44°
Sun, 2567° / 56°0.01
67 °
Oak Park, Sunday, 25 October
Light rain. High 67°, low 56°.
Pressure30.27 inHg
Wind11.4 mph W
Humidity24%
Visibility—
Dew point25°
Mon, 2664° / 51°0.01
64 °
Oak Park, Monday, 26 October
Light rain. High 64°, low 51°.
Pressure30.21 inHg
Wind10.7 mph S
Humidity24%
Visibility—
Dew point24°
Tue, 2762° / 53°0.04
62 °
Oak Park, Tuesday, 27 October
Light rain. High 62°, low 53°.
Pressure30.15 inHg
Wind9.6 mph SW
Humidity82%
Visibility—
Dew point50°
Wed, 2856° / 52°0.2
56 °
Oak Park, Wednesday, 28 October
Light rain. High 56°, low 52°.
Pressure30.18 inHg
Wind5.9 mph NE
Humidity89%
Visibility—
Dew point51°
Thu, 2959° / 55°0.07
59 °
Oak Park, Thursday, 29 October
Light rain. High 59°, low 55°.
Pressure30.06 inHg
Wind7.7 mph SE
Humidity81%
Visibility—
Dew point52°
Fri, 3070° / 61°0.2
70 °
Oak Park, Friday, 30 October
Light rain. High 70°, low 61°.
Pressure29.77 inHg
Wind14.3 mph SW
Humidity79%
Visibility—
Dew point62°
Sat, 3162° / 57°0
62 °
Oak Park, Saturday, 31 October
Overcast. High 62°, low 57°.
Pressure30.03 inHg
Wind8.8 mph SW
Humidity18%
Visibility—
Dew point17°
Sun, 0158° / 43°0.6
58 °
Oak Park, Sunday, 1 November
Rain. High 58°, low 43°.
Pressure29.77 inHg
Wind22.3 mph NW
Humidity76%
Visibility—
Dew point39°
Mon, 0256° / 46°0
56 °
Oak Park, Monday, 2 November
Clear. High 56°, low 46°.
Pressure30.03 inHg
Wind9 mph NW
Humidity41%
Visibility—
Dew point29°
Tue, 0353° / 49°0.01
53 °
Oak Park, Tuesday, 3 November
Light rain. High 53°, low 49°.
Pressure30.00 inHg
Wind8 mph S
Humidity69%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 0453° / 42°0.09
53 °
Oak Park, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2015)
Record low17° (1991)
Thu, 0553° / 41°0.12
53 °
Oak Park, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.12 in
Chance of precipitation35%
Record high74° (1978)
Record low20° (1991)
Fri, 0653° / 39°0.07
53 °
Oak Park, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (1975)
Record low24° (1991)
Sat, 0751° / 39°0.05
51 °
Oak Park, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.05 in
Chance of precipitation22%
Record high70° (2020)
Record low20° (1991)
Sun, 0851° / 39°0.06
51 °
Oak Park, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.06 in
Chance of precipitation18%
Record high75° (2020)
Record low17° (1991)
Mon, 0952° / 39°0.11
52 °
Oak Park, Monday, 9 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation37%
Record high73° (2020)
Record low20° (1991)
Tue, 1050° / 38°0.11
50 °
Oak Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation33%
Record high74° (2020)
Record low18° (2018)
Wed, 1148° / 36°0.08
48 °
Oak Park, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.08 in
Chance of precipitation32%
Record high70° (1964)
Record low17° (2019)
Thu, 1246° / 35°0.06
46 °
Oak Park, 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 low3° (2019)
Fri, 1347° / 35°0.05
47 °
Oak Park, Friday, 13 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation18%
Record high68° (1999)
Record low2° (2019)
Sat, 1448° / 35°0.07
48 °
Oak Park, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high68° (1971)
Record low15° (1986)
Sun, 1547° / 36°0.09
47 °
Oak Park, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.09 in
Chance of precipitation30%
Record high68° (2025)
Record low20° (1982)
Mon, 1647° / 35°0.05
47 °
Oak Park, Monday, 16 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation23%
Record high63° (2023)
Record low22° (1997)
Tue, 1747° / 35°0.09
47 °
Oak Park, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation32%
Record high69° (2016)
Record low16° (2014)
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 Oak 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 Oak 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.