Monthly outlook for Ontarioville, IL: average high 51.9°, average low 37.9°. That is 4.4° above the climate normal for November. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 21 November (60.4°), the coolest 23 November (27.7°).
51.9°/37.9°
Average high / low
+4.4°
Above normal
1 / 5
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 November – 24 November
51.3°
45.4°
+3.3°
25 November – 4 December
52.9°
40.2°
+7°
5 December – 14 December
at normal
35.7°
—
November records over 66 years
74.3°2 November 1961All-time high
2.3°12 November 2019All-time low
Climate normals and records are computed from the nearest reference point — Glendale Heights (6 mi).
Mon, 1653° / 32°0
53 °
Ontarioville, Monday, 16 November
Clear. High 53°, low 32°.
Pressure30.50 inHg
Wind8 mph SW
Humidity55%
Visibility6.2 mi
Dew point34°
Tue, 1753° / 35°0
53 °
Ontarioville, Tuesday, 17 November
Clear. High 53°, low 35°.
Pressure30.47 inHg
Wind8.4 mph SW
Humidity65%
Visibility6.2 mi
Dew point39°
Wed, 1855° / 38°0
55 °
Ontarioville, Wednesday, 18 November
Overcast. High 55°, low 38°.
Pressure30.30 inHg
Wind12.1 mph S
Humidity63%
Visibility6.2 mi
Dew point41°
Thu, 1960° / 46°0
60 °
Ontarioville, Thursday, 19 November
Clear. High 60°, low 46°.
Pressure30.15 inHg
Wind14.2 mph SW
Humidity63%
Visibility—
Dew point44°
Fri, 2053° / 36°0
53 °
Ontarioville, Friday, 20 November
Clear. High 53°, low 36°.
Pressure30.30 inHg
Wind8.7 mph S
Humidity62%
Visibility—
Dew point37°
Sat, 2160° / 49°0.13
60 °
Ontarioville, Saturday, 21 November
Light rain. High 60°, low 49°.
Pressure29.91 inHg
Wind18.4 mph SW
Humidity53%
Visibility—
Dew point42°
Sun, 2247° / 35°0
47 °
Ontarioville, Sunday, 22 November
Overcast. High 47°, low 35°.
Pressure30.21 inHg
Wind20.3 mph W
Humidity54%
Visibility—
Dew point28°
Mon, 2341° / 28°0
41 °
Ontarioville, Monday, 23 November
Clear. High 41°, low 28°.
Pressure30.53 inHg
Wind9.7 mph N
Humidity57%
Visibility—
Dew point25°
Tue, 2442° / 31°0
42 °
Ontarioville, Tuesday, 24 November
Partly cloudy. High 42°, low 31°.
Pressure30.53 inHg
Wind7.7 mph S
Humidity40%
Visibility—
Dew point17°
Wed, 2547° / 32°0
47 °
Ontarioville, Wednesday, 25 November
Partly cloudy. High 47°, low 32°.
Pressure30.39 inHg
Wind11.2 mph SW
Humidity38%
Visibility—
Dew point20°
Thu, 2653° / 39°0
53 °
Ontarioville, Thursday, 26 November
Overcast. High 53°, low 39°.
Pressure30.27 inHg
Wind10.9 mph SW
Humidity61%
Visibility—
Dew point38°
Fri, 2753° / 41°0
53 °
Ontarioville, Friday, 27 November
Overcast. High 53°, low 41°.
Pressure30.30 inHg
Wind6.6 mph SW
Humidity55%
Visibility—
Dew point35°
Sat, 2855° / 44°0
55 °
Ontarioville, Saturday, 28 November
Overcast. High 55°, low 44°.
Pressure30.39 inHg
Wind3 mph W
Humidity55%
Visibility—
Dew point37°
Sun, 2956° / 44°0
56 °
Ontarioville, Sunday, 29 November
Overcast. High 56°, low 44°.
Pressure30.30 inHg
Wind5.7 mph N
Humidity63%
Visibility—
Dew point41°
Mon, 3053° / 47°0
53 °
Ontarioville, Monday, 30 November
Overcast. High 53°, low 47°.
Pressure30.15 inHg
Wind6.9 mph E
Humidity61%
Visibility—
Dew point39°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0138° / 27°0.15
38 °
Ontarioville, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.15 in
Chance of precipitation40%
Record high64° (1970)
Record low12° (1985)
Wed, 0239° / 27°0.06
39 °
Ontarioville, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.06 in
Chance of precipitation32%
Record high68° (1982)
Record low4° (1976)
Thu, 0338° / 27°0.08
38 °
Ontarioville, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.08 in
Chance of precipitation32%
Record high68° (2012)
Record low4° (2006)
Fri, 0438° / 26°0.06
38 °
Ontarioville, Friday, 4 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.06 in
Chance of precipitation25%
Record high64° (1998)
Record low-3° (1991)
Sat, 0538° / 25°0.08
38 °
Ontarioville, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high38°
Average low25°
Average precipitation0.08 in
Chance of precipitation32%
Record high66° (2001)
Record low-4° (1991)
Sun, 0636° / 24°0.06
36 °
Ontarioville, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.06 in
Chance of precipitation22%
Record high61° (1998)
Record low-2° (2007)
Mon, 0735° / 24°0.12
35 °
Ontarioville, Monday, 7 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.12 in
Chance of precipitation27%
Record high56° (1980)
Record low-8° (1972)
Tue, 0835° / 24°0.07
35 °
Ontarioville, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high35°
Average low24°
Average precipitation0.07 in
Chance of precipitation27%
Record high62° (1991)
Record low-4° (2006)
Wed, 0936° / 23°0.08
36 °
Ontarioville, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high36°
Average low23°
Average precipitation0.08 in
Chance of precipitation40%
Record high53° (2023)
Record low-5° (1995)
Thu, 1035° / 22°0.09
35 °
Ontarioville, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.09 in
Chance of precipitation25%
Record high58° (2015)
Record low-10° (1978)
Fri, 1134° / 22°0.11
34 °
Ontarioville, Friday, 11 December
Climate normal for this date — 60-year average.
Average high34°
Average low22°
Average precipitation0.11 in
Chance of precipitation30%
Record high58° (2021)
Record low-16° (1972)
Sat, 1236° / 22°0.09
36 °
Ontarioville, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.09 in
Chance of precipitation28%
Record high59° (2015)
Record low-7° (2013)
Sun, 1336° / 22°0.05
36 °
Ontarioville, Sunday, 13 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.05 in
Chance of precipitation25%
Record high62° (2015)
Record low-12° (2000)
Mon, 1436° / 24°0.1
36 °
Ontarioville, Monday, 14 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.1 in
Chance of precipitation30%
Record high62° (1975)
Record low-11° (1985)
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 Ontarioville, 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 Ontarioville, 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.