Monthly outlook for Stone Park, IL: average high 64.1°, average low 50.8°. That is 3.2° above the climate normal for October. Precipitation is expected on 3 days (about 2.2 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 23 October (79°), the coolest 17 October (38.3°).
64.1°/50.8°
Average high / low
+3.2°
Above normal
3 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
66.1°
59.4°
+3.7°
25 October – 3 November
60.6°
55.5°
+2.8°
4 November – 13 November
at normal
50.3°
—
October records over 66 years
88.5°3 October 2025All-time high
25.3°26 October 1962All-time low
Fri, 1659° / 44°0.03
59 °
Stone Park, Friday, 16 October
Light rain. High 59°, low 44°.
Pressure30.00 inHg
Wind11.9 mph NW
Humidity66%
Visibility6.2 mi
Dew point42°
Sat, 1754° / 38°0
54 °
Stone Park, Saturday, 17 October
Clear. High 54°, low 38°.
Pressure30.53 inHg
Wind3.3 mph W
Humidity51%
Visibility6.2 mi
Dew point33°
Sun, 1860° / 42°0
60 °
Stone Park, Sunday, 18 October
Clear. High 60°, low 42°.
Pressure30.45 inHg
Wind10.1 mph SW
Humidity57%
Visibility6.2 mi
Dew point40°
Mon, 1961° / 42°0
61 °
Stone Park, Monday, 19 October
Partly cloudy. High 61°, low 42°.
Pressure30.39 inHg
Wind6.6 mph SW
Humidity56%
Visibility—
Dew point42°
Tue, 2068° / 45°0
68 °
Stone Park, Tuesday, 20 October
Clear. High 68°, low 45°.
Pressure30.36 inHg
Wind5 mph E
Humidity45%
Visibility—
Dew point41°
Wed, 2173° / 57°0
73 °
Stone Park, Wednesday, 21 October
Overcast. High 73°, low 57°.
Pressure30.33 inHg
Wind6.8 mph S
Humidity37%
Visibility—
Dew point42°
Thu, 2275° / 59°0
75 °
Stone Park, Thursday, 22 October
Partly cloudy. High 75°, low 59°.
Pressure30.21 inHg
Wind8.7 mph S
Humidity35%
Visibility—
Dew point42°
Fri, 2379° / 63°0.02
79 °
Stone Park, Friday, 23 October
Light rain. High 79°, low 63°.
Pressure30.00 inHg
Wind13.3 mph S
Humidity45%
Visibility—
Dew point52°
Sat, 2469° / 64°0.33
69 °
Stone Park, Saturday, 24 October
Rain. High 69°, low 64°.
Pressure30.18 inHg
Wind7 mph SW
Humidity78%
Visibility—
Dew point61°
Sun, 2563° / 55°0.04
63 °
Stone Park, Sunday, 25 October
Light rain. High 63°, low 55°.
Pressure30.15 inHg
Wind8.9 mph NE
Humidity60%
Visibility—
Dew point45°
Mon, 2657° / 46°1.09
57 °
Stone Park, Monday, 26 October
Heavy rain. High 57°, low 46°.
Pressure30.03 inHg
Wind10.1 mph W
Humidity37%
Visibility—
Dew point28°
Tue, 2761° / 49°0
61 °
Stone Park, Tuesday, 27 October
Mostly clear. High 61°, low 49°.
Pressure30.15 inHg
Wind3.6 mph SW
Humidity39%
Visibility—
Dew point34°
Wed, 2863° / 51°0
63 °
Stone Park, Wednesday, 28 October
Overcast. High 63°, low 51°.
Pressure29.91 inHg
Wind3.6 mph W
Humidity33%
Visibility—
Dew point32°
Thu, 2961° / 51°0
61 °
Stone Park, Thursday, 29 October
Clear. High 61°, low 51°.
Pressure29.94 inHg
Wind11 mph NW
Humidity41%
Visibility—
Dew point35°
Fri, 3059° / 47°0
59 °
Stone Park, Friday, 30 October
Clear. High 59°, low 47°.
Pressure30.12 inHg
Wind8.4 mph S
Humidity26%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3156° / 44°0.13
56 °
Stone Park, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.13 in
Chance of precipitation38%
Record high74° (1974)
Record low26° (2023)
Sun, 0155° / 42°0.16
55 °
Stone Park, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high55°
Average low42°
Average precipitation0.16 in
Chance of precipitation38%
Record high73° (2016)
Record low19° (2019)
Mon, 0254° / 41°0.11
54 °
Stone Park, Monday, 2 November
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.11 in
Chance of precipitation40%
Record high74° (1961)
Record low24° (1991)
Tue, 0353° / 40°0.06
53 °
Stone Park, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.06 in
Chance of precipitation25%
Record high73° (1987)
Record low18° (1991)
Wed, 0453° / 42°0.09
53 °
Stone Park, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high53°
Average low42°
Average precipitation0.09 in
Chance of precipitation23%
Record high71° (2015)
Record low17° (1991)
Thu, 0553° / 40°0.11
53 °
Stone Park, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.11 in
Chance of precipitation27%
Record high75° (1978)
Record low19° (1991)
Fri, 0653° / 39°0.07
53 °
Stone Park, Friday, 6 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.07 in
Chance of precipitation28%
Record high72° (1975)
Record low24° (1991)
Sat, 0751° / 38°0.05
51 °
Stone Park, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.05 in
Chance of precipitation17%
Record high69° (2020)
Record low19° (1991)
Sun, 0851° / 38°0.04
51 °
Stone Park, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.04 in
Chance of precipitation18%
Record high74° (2020)
Record low15° (1991)
Mon, 0952° / 39°0.11
52 °
Stone Park, 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 °
Stone Park, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation32%
Record high73° (2020)
Record low18° (2017)
Wed, 1148° / 36°0.07
48 °
Stone Park, 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 low15° (2019)
Thu, 1246° / 34°0.06
46 °
Stone Park, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high67° (1964)
Record low2° (2019)
Fri, 1347° / 34°0.04
47 °
Stone Park, 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)
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 Stone 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 Stone 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.