Monthly outlook for Oak Forest, PA: average high 64.4°, average low 46.7°. That is 2.2° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 13 October (79.6°), the coolest 18 October (34°).
64.4°/46.7°
Average high / low
+2.2°
Above normal
3 / 6
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 October – 22 October
67.4°
61.4°
+3.3°
23 October – 1 November
59.5°
58.4°
+0.6°
2 November – 11 November
at normal
54.7°
—
October records over 66 years
90.7°3 October 2019All-time high
24.8°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Dunkard (14 mi).
Wed, 1473° / 61°0.05
73 °
Oak Forest, Wednesday, 14 October
Light rain. High 73°, low 61°.
Pressure30.03 inHg
Wind8.8 mph W
Humidity71%
Visibility5.4 mi
Dew point65°
Thu, 1568° / 55°0.1
68 °
Oak Forest, Thursday, 15 October
Light rain. High 68°, low 55°.
Pressure30.15 inHg
Wind4.5 mph NE
Humidity69%
Visibility6.2 mi
Dew point56°
Fri, 1669° / 48°0.39
69 °
Oak Forest, Friday, 16 October
Rain. High 69°, low 48°.
Pressure29.74 inHg
Wind15.5 mph W
Humidity93%
Visibility1.8 mi
Dew point63°
Sat, 1749° / 38°0.02
49 °
Oak Forest, Saturday, 17 October
Light rain. High 49°, low 38°.
Pressure30.39 inHg
Wind12.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point33°
Sun, 1861° / 34°0
61 °
Oak Forest, Sunday, 18 October
Clear. High 61°, low 34°.
Pressure30.45 inHg
Wind6 mph S
Humidity33%
Visibility—
Dew point28°
Mon, 1965° / 43°0
65 °
Oak Forest, Monday, 19 October
Overcast. High 65°, low 43°.
Pressure30.33 inHg
Wind8.4 mph SW
Humidity47%
Visibility—
Dew point41°
Tue, 2068° / 50°0
68 °
Oak Forest, Tuesday, 20 October
Overcast. High 68°, low 50°.
Pressure30.33 inHg
Wind5.3 mph NE
Humidity56%
Visibility—
Dew point49°
Wed, 2171° / 54°0
71 °
Oak Forest, Wednesday, 21 October
Partly cloudy. High 71°, low 54°.
Pressure30.33 inHg
Wind3.9 mph NE
Humidity53%
Visibility—
Dew point51°
Thu, 2272° / 52°0
72 °
Oak Forest, Thursday, 22 October
Clear. High 72°, low 52°.
Pressure30.27 inHg
Wind4.9 mph S
Humidity53%
Visibility—
Dew point51°
Fri, 2371° / 51°0
71 °
Oak Forest, Friday, 23 October
Mostly clear. High 71°, low 51°.
Pressure30.21 inHg
Wind8.5 mph S
Humidity50%
Visibility—
Dew point49°
Sat, 2468° / 51°0
68 °
Oak Forest, Saturday, 24 October
Overcast. High 68°, low 51°.
Pressure30.18 inHg
Wind7.6 mph SW
Humidity83%
Visibility—
Dew point57°
Sun, 2554° / 42°0
54 °
Oak Forest, Sunday, 25 October
Overcast. High 54°, low 42°.
Pressure30.18 inHg
Wind6.8 mph W
Humidity68%
Visibility—
Dew point40°
Mon, 2655° / 39°0
55 °
Oak Forest, Monday, 26 October
Mostly clear. High 55°, low 39°.
Pressure29.97 inHg
Wind12.6 mph W
Humidity54%
Visibility—
Dew point37°
Tue, 2749° / 36°0
49 °
Oak Forest, Tuesday, 27 October
Overcast. High 49°, low 36°.
Pressure30.30 inHg
Wind6.2 mph W
Humidity60%
Visibility—
Dew point34°
Wed, 2860° / 36°0
60 °
Oak Forest, Wednesday, 28 October
Partly cloudy. High 60°, low 36°.
Pressure30.24 inHg
Wind7 mph S
Humidity48%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 2957° / 41°0.18
57 °
Oak Forest, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.18 in
Chance of precipitation35%
Record high74° (2024)
Record low26° (1965)
Fri, 3058° / 40°0.13
58 °
Oak Forest, Friday, 30 October
Climate normal for this date — 60-year average.
Average high58°
Average low40°
Average precipitation0.13 in
Chance of precipitation30%
Record high74° (1971)
Record low28° (2008)
Sat, 3159° / 43°0.09
59 °
Oak Forest, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high59°
Average low43°
Average precipitation0.09 in
Chance of precipitation30%
Record high78° (2024)
Record low29° (1975)
Sun, 0159° / 44°0.11
59 °
Oak Forest, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high59°
Average low44°
Average precipitation0.11 in
Chance of precipitation35%
Record high74° (2018)
Record low29° (1993)
Mon, 0258° / 43°0.13
58 °
Oak Forest, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low43°
Average precipitation0.13 in
Chance of precipitation38%
Record high76° (2016)
Record low23° (1993)
Tue, 0357° / 41°0.09
57 °
Oak Forest, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low41°
Average precipitation0.09 in
Chance of precipitation37%
Record high78° (1961)
Record low27° (2006)
Wed, 0456° / 40°0.14
56 °
Oak Forest, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low40°
Average precipitation0.14 in
Chance of precipitation30%
Record high76° (2003)
Record low25° (1991)
Thu, 0555° / 41°0.12
55 °
Oak Forest, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high55°
Average low41°
Average precipitation0.12 in
Chance of precipitation37%
Record high77° (2024)
Record low21° (1991)
Fri, 0655° / 40°0.07
55 °
Oak Forest, Friday, 6 November
Climate normal for this date — 60-year average.
Average high55°
Average low40°
Average precipitation0.07 in
Chance of precipitation38%
Record high75° (2022)
Record low25° (1967)
Sat, 0754° / 39°0.15
54 °
Oak Forest, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.15 in
Chance of precipitation38%
Record high72° (1996)
Record low26° (1967)
Sun, 0853° / 38°0.13
53 °
Oak Forest, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.13 in
Chance of precipitation33%
Record high73° (2020)
Record low24° (1971)
Mon, 0955° / 39°0.11
55 °
Oak Forest, Monday, 9 November
Climate normal for this date — 60-year average.
Average high55°
Average low39°
Average precipitation0.11 in
Chance of precipitation35%
Record high74° (1975)
Record low23° (1976)
Tue, 1054° / 38°0.16
54 °
Oak Forest, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high54°
Average low38°
Average precipitation0.16 in
Chance of precipitation42%
Record high76° (2020)
Record low24° (2017)
Wed, 1152° / 38°0.17
52 °
Oak Forest, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.17 in
Chance of precipitation40%
Record high71° (2021)
Record low20° (2017)
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 Forest, PA 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 Forest, PA 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.