Monthly outlook for Preston Heights, IL: average high 52.8°, average low 38.6°. That is 2° above the climate normal for November. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 18 November (64.6°), the coolest 15 November (29.3°).
52.8°/38.6°
Average high / low
+2°
Above normal
1 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
6 November – 15 November
49.9°
50.3°
-0.2°
16 November – 25 November
57.7°
46.4°
+6.3°
26 November – 5 December
at normal
41.1°
—
November records over 66 years
76.5°5 November 1978All-time high
5.4°26 November 1977All-time low
Climate normals and records are computed from the nearest reference point — Joliet (4 mi).
Sat, 0748° / 31°0
48 °
Preston Heights, Saturday, 7 November
Overcast. High 48°, low 31°.
Pressure30.21 inHg
Wind5.3 mph W
Humidity55%
Visibility6.2 mi
Dew point33°
Sun, 0859° / 39°0
59 °
Preston Heights, Sunday, 8 November
Clear. High 59°, low 39°.
Pressure30.00 inHg
Wind10.4 mph W
Humidity64%
Visibility6.2 mi
Dew point44°
Mon, 0957° / 37°0
57 °
Preston Heights, Monday, 9 November
Mostly clear. High 57°, low 37°.
Pressure30.15 inHg
Wind5.7 mph SW
Humidity60%
Visibility6.2 mi
Dew point41°
Tue, 1061° / 45°0
61 °
Preston Heights, Tuesday, 10 November
Clear. High 61°, low 45°.
Pressure30.03 inHg
Wind4.5 mph NW
Humidity63%
Visibility6.2 mi
Dew point47°
Wed, 1153° / 40°0
53 °
Preston Heights, Wednesday, 11 November
Overcast. High 53°, low 40°.
Pressure29.94 inHg
Wind3.9 mph NE
Humidity66%
Visibility—
Dew point40°
Thu, 1245° / 40°0.17
45 °
Preston Heights, Thursday, 12 November
Light rain. High 45°, low 40°.
Pressure29.94 inHg
Wind13.3 mph NE
Humidity87%
Visibility—
Dew point40°
Fri, 1342° / 34°0.04
42 °
Preston Heights, Friday, 13 November
Snow. High 42°, low 34°.
Pressure30.12 inHg
Wind12.6 mph NE
Humidity53%
Visibility—
Dew point25°
Sat, 1441° / 30°0
41 °
Preston Heights, Saturday, 14 November
Partly cloudy. High 41°, low 30°.
Pressure30.21 inHg
Wind10.4 mph N
Humidity43%
Visibility—
Dew point19°
Sun, 1544° / 29°0
44 °
Preston Heights, Sunday, 15 November
Clear. High 44°, low 29°.
Pressure30.24 inHg
Wind8.6 mph SW
Humidity44%
Visibility—
Dew point21°
Mon, 1657° / 39°0
57 °
Preston Heights, Monday, 16 November
Overcast. High 57°, low 39°.
Pressure30.12 inHg
Wind11.4 mph SW
Humidity57%
Visibility—
Dew point38°
Tue, 1764° / 48°0
64 °
Preston Heights, Tuesday, 17 November
Clear. High 64°, low 48°.
Pressure30.00 inHg
Wind11.5 mph SW
Humidity64%
Visibility—
Dew point48°
Wed, 1865° / 52°0
65 °
Preston Heights, Wednesday, 18 November
Overcast. High 65°, low 52°.
Pressure29.97 inHg
Wind17.8 mph S
Humidity59%
Visibility—
Dew point42°
Thu, 1962° / 42°0.01
62 °
Preston Heights, Thursday, 19 November
Light rain. High 62°, low 42°.
Pressure30.09 inHg
Wind19.8 mph W
Humidity54%
Visibility—
Dew point39°
Fri, 2049° / 36°0
49 °
Preston Heights, Friday, 20 November
Overcast. High 49°, low 36°.
Pressure30.39 inHg
Wind6 mph N
Humidity47%
Visibility—
Dew point27°
Sat, 2149° / 37°0
49 °
Preston Heights, Saturday, 21 November
Overcast. High 49°, low 37°.
Pressure30.39 inHg
Wind7.3 mph NE
Humidity48%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2246° / 31°0.04
46 °
Preston Heights, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high46°
Average low31°
Average precipitation0.04 in
Chance of precipitation20%
Record high70° (2010)
Record low6° (2015)
Mon, 2345° / 32°0.08
45 °
Preston Heights, Monday, 23 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.08 in
Chance of precipitation30%
Record high65° (2003)
Record low13° (1970)
Tue, 2444° / 30°0.08
44 °
Preston Heights, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high44°
Average low30°
Average precipitation0.08 in
Chance of precipitation23%
Record high67° (1966)
Record low13° (1970)
Wed, 2544° / 31°0.08
44 °
Preston Heights, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.08 in
Chance of precipitation33%
Record high61° (2006)
Record low15° (1991)
Thu, 2645° / 31°0.12
45 °
Preston Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high45°
Average low31°
Average precipitation0.12 in
Chance of precipitation43%
Record high64° (1990)
Record low5° (1977)
Fri, 2743° / 31°0.22
43 °
Preston Heights, Friday, 27 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.22 in
Chance of precipitation47%
Record high66° (1990)
Record low14° (2018)
Sat, 2841° / 29°0.13
41 °
Preston Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.13 in
Chance of precipitation22%
Record high64° (1998)
Record low5° (2018)
Sun, 2942° / 29°0.07
42 °
Preston Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.07 in
Chance of precipitation30%
Record high66° (1998)
Record low7° (1976)
Mon, 3042° / 29°0.09
42 °
Preston Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.09 in
Chance of precipitation27%
Record high65° (1998)
Record low10° (1964)
Tue, 0140° / 28°0.15
40 °
Preston Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.15 in
Chance of precipitation38%
Record high65° (1970)
Record low12° (1985)
Wed, 0241° / 28°0.06
41 °
Preston Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.06 in
Chance of precipitation32%
Record high69° (1982)
Record low8° (1976)
Thu, 0340° / 28°0.09
40 °
Preston Heights, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.09 in
Chance of precipitation33%
Record high70° (2012)
Record low6° (2006)
Fri, 0439° / 27°0.07
39 °
Preston Heights, Friday, 4 December
Climate normal for this date — 60-year average.
Average high39°
Average low27°
Average precipitation0.07 in
Chance of precipitation25%
Record high66° (1998)
Record low-2° (1991)
Sat, 0540° / 26°0.08
40 °
Preston Heights, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.08 in
Chance of precipitation28%
Record high67° (2001)
Record low-3° (1991)
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 Preston Heights, 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 Preston Heights, 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.