Monthly outlook for Prospect Heights, IL: average high 54.5°, average low 44.2°. That is 2.9° above the climate normal for November. Precipitation is expected on 6 days (about 0.6 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 3 November (70.5°), the coolest 7 November (34.9°).
54.5°/44.2°
Average high / low
+2.9°
Above normal
6 / 4
Wet days / normal
0.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
56.3°
50.6°
+3.2°
13 November – 22 November
51.5°
46.3°
+2.9°
23 November – 2 December
at normal
41.7°
—
November records over 66 years
73.6°8 November 2020All-time high
1°13 November 2019All-time low
Climate normals and records are computed from the nearest reference point — Park Ridge (8 mi).
Wed, 0463° / 54°0.21
63 °
Prospect Heights, Wednesday, 4 November
Rain. High 63°, low 54°.
Pressure29.62 inHg
Wind13.5 mph SW
Humidity78%
Visibility6.2 mi
Dew point54°
Thu, 0554° / 49°0.02
54 °
Prospect Heights, Thursday, 5 November
Light rain. High 54°, low 49°.
Pressure29.74 inHg
Wind13.6 mph SW
Humidity77%
Visibility6.2 mi
Dew point46°
Fri, 0649° / 42°0.04
49 °
Prospect Heights, Friday, 6 November
Light rain. High 49°, low 42°.
Pressure30.06 inHg
Wind9.6 mph N
Humidity66%
Visibility6.2 mi
Dew point36°
Sat, 0747° / 35°0
47 °
Prospect Heights, Saturday, 7 November
Clear. High 47°, low 35°.
Pressure30.15 inHg
Wind7.7 mph W
Humidity57%
Visibility—
Dew point30°
Sun, 0858° / 40°0
58 °
Prospect Heights, Sunday, 8 November
Overcast. High 58°, low 40°.
Pressure30.06 inHg
Wind8.5 mph W
Humidity64%
Visibility—
Dew point42°
Mon, 0957° / 42°0
57 °
Prospect Heights, Monday, 9 November
Clear. High 57°, low 42°.
Pressure30.06 inHg
Wind4.7 mph SW
Humidity35%
Visibility—
Dew point26°
Tue, 1059° / 48°0
59 °
Prospect Heights, Tuesday, 10 November
Overcast. High 59°, low 48°.
Pressure30.06 inHg
Wind6 mph NW
Humidity48%
Visibility—
Dew point37°
Wed, 1159° / 48°0
59 °
Prospect Heights, Wednesday, 11 November
Overcast. High 59°, low 48°.
Pressure29.97 inHg
Wind4.6 mph NE
Humidity22%
Visibility—
Dew point18°
Thu, 1248° / 43°0
48 °
Prospect Heights, Thursday, 12 November
Overcast. High 48°, low 43°.
Pressure30.12 inHg
Wind8.1 mph N
Humidity52%
Visibility—
Dew point30°
Fri, 1344° / 41°0.1
44 °
Prospect Heights, Friday, 13 November
Light rain. High 44°, low 41°.
Pressure30.24 inHg
Wind7.9 mph N
Humidity73%
Visibility—
Dew point35°
Sat, 1448° / 37°0
48 °
Prospect Heights, Saturday, 14 November
Clear. High 48°, low 37°.
Pressure30.33 inHg
Wind5.5 mph NW
Humidity43%
Visibility—
Dew point24°
Sun, 1551° / 37°0
51 °
Prospect Heights, Sunday, 15 November
Clear. High 51°, low 37°.
Pressure30.30 inHg
Wind8.9 mph SW
Humidity39%
Visibility—
Dew point25°
Mon, 1654° / 40°0
54 °
Prospect Heights, Monday, 16 November
Clear. High 54°, low 40°.
Pressure30.18 inHg
Wind7.9 mph SW
Humidity37%
Visibility—
Dew point26°
Tue, 1753° / 44°0.06
53 °
Prospect Heights, Tuesday, 17 November
Light rain. High 53°, low 44°.
Pressure29.94 inHg
Wind10.4 mph S
Humidity38%
Visibility—
Dew point26°
Wed, 1858° / 45°0.06
58 °
Prospect Heights, Wednesday, 18 November
Light rain. High 58°, low 45°.
Pressure29.85 inHg
Wind11.5 mph SW
Humidity54%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1947° / 36°0.07
47 °
Prospect Heights, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.07 in
Chance of precipitation30%
Record high64° (1985)
Record low19° (2022)
Fri, 2046° / 35°0.09
46 °
Prospect Heights, Friday, 20 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.09 in
Chance of precipitation30%
Record high62° (2003)
Record low14° (2022)
Sat, 2144° / 33°0.1
44 °
Prospect Heights, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.1 in
Chance of precipitation25%
Record high65° (1990)
Record low12° (1964)
Sun, 2244° / 33°0.05
44 °
Prospect Heights, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.05 in
Chance of precipitation20%
Record high67° (2010)
Record low12° (2015)
Mon, 2344° / 33°0.08
44 °
Prospect Heights, Monday, 23 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.08 in
Chance of precipitation28%
Record high64° (2003)
Record low13° (1970)
Tue, 2443° / 32°0.07
43 °
Prospect Heights, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.07 in
Chance of precipitation30%
Record high65° (1966)
Record low16° (2013)
Wed, 2543° / 33°0.09
43 °
Prospect Heights, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.09 in
Chance of precipitation35%
Record high59° (1966)
Record low18° (2005)
Thu, 2643° / 32°0.12
43 °
Prospect Heights, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.12 in
Chance of precipitation42%
Record high62° (1990)
Record low8° (1977)
Fri, 2742° / 32°0.21
42 °
Prospect Heights, Friday, 27 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.21 in
Chance of precipitation50%
Record high65° (1990)
Record low15° (2018)
Sat, 2840° / 29°0.12
40 °
Prospect Heights, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.12 in
Chance of precipitation28%
Record high63° (1990)
Record low2° (2018)
Sun, 2941° / 30°0.07
41 °
Prospect Heights, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.07 in
Chance of precipitation33%
Record high64° (1998)
Record low10° (1976)
Mon, 3042° / 30°0.08
42 °
Prospect Heights, Monday, 30 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation30%
Record high64° (1998)
Record low13° (1976)
Tue, 0139° / 29°0.16
39 °
Prospect Heights, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high39°
Average low29°
Average precipitation0.16 in
Chance of precipitation42%
Record high63° (1970)
Record low9° (2025)
Wed, 0240° / 29°0.07
40 °
Prospect Heights, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.07 in
Chance of precipitation33%
Record high66° (1982)
Record low10° (1976)
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 Prospect 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 Prospect 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.