Monthly outlook for Lake Catherine, IL: average high 51.1°, average low 41°. That is 1.5° above the climate normal for November. Precipitation is expected on 6 days (about 1.7 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 3 November (70.3°), the coolest 14 November (29.5°).
51.1°/41°
Average high / low
+1.5°
Above normal
6 / 4
Wet days / normal
1.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
2 November – 11 November
53.6°
50.1°
+1.9°
12 November – 21 November
46.8°
45.2°
+0.9°
22 November – 1 December
at normal
40.9°
—
November records over 66 years
73°8 November 2020All-time high
1.6°13 November 2019All-time low
Climate normals and records are computed from the nearest reference point — Round Lake Beach (8 mi).
Tue, 0370° / 63°0.27
70 °
Lake Catherine, Tuesday, 3 November
Rain. High 70°, low 63°.
Pressure29.80 inHg
Wind14.3 mph S
Humidity76%
Visibility6.2 mi
Dew point61°
Wed, 0463° / 53°0.59
63 °
Lake Catherine, Wednesday, 4 November
Heavy rain. High 63°, low 53°.
Pressure29.62 inHg
Wind15.9 mph SW
Humidity71%
Visibility6.2 mi
Dew point51°
Thu, 0553° / 49°0.15
53 °
Lake Catherine, Thursday, 5 November
Light rain. High 53°, low 49°.
Pressure29.65 inHg
Wind12.2 mph SW
Humidity83%
Visibility6.2 mi
Dew point46°
Fri, 0650° / 46°0.02
50 °
Lake Catherine, Friday, 6 November
Light rain. High 50°, low 46°.
Pressure29.97 inHg
Wind13.2 mph N
Humidity76%
Visibility—
Dew point42°
Sat, 0749° / 35°0
49 °
Lake Catherine, Saturday, 7 November
Mostly clear. High 49°, low 35°.
Pressure30.03 inHg
Wind7 mph NW
Humidity55%
Visibility—
Dew point30°
Sun, 0846° / 42°0.36
46 °
Lake Catherine, Sunday, 8 November
Rain. High 46°, low 42°.
Pressure29.68 inHg
Wind13.8 mph NE
Humidity89%
Visibility—
Dew point41°
Mon, 0947° / 37°0
47 °
Lake Catherine, Monday, 9 November
Partly cloudy. High 47°, low 37°.
Pressure29.91 inHg
Wind12.8 mph NW
Humidity47%
Visibility—
Dew point26°
Tue, 1047° / 35°0
47 °
Lake Catherine, Tuesday, 10 November
Clear. High 47°, low 35°.
Pressure29.94 inHg
Wind18.9 mph NW
Humidity53%
Visibility—
Dew point29°
Wed, 1149° / 34°0
49 °
Lake Catherine, Wednesday, 11 November
Overcast. High 49°, low 34°.
Pressure30.12 inHg
Wind13.8 mph NW
Humidity47%
Visibility—
Dew point27°
Thu, 1248° / 33°0.15
48 °
Lake Catherine, Thursday, 12 November
Light rain. High 48°, low 33°.
Pressure29.88 inHg
Wind10.8 mph SW
Humidity54%
Visibility—
Dew point30°
Fri, 1344° / 33°0.04
44 °
Lake Catherine, Friday, 13 November
Light rain. High 44°, low 33°.
Pressure30.15 inHg
Wind14.2 mph N
Humidity59%
Visibility—
Dew point28°
Sat, 1445° / 29°0
45 °
Lake Catherine, Saturday, 14 November
Partly cloudy. High 45°, low 29°.
Pressure30.21 inHg
Wind13.8 mph SW
Humidity50%
Visibility—
Dew point25°
Sun, 1556° / 38°0
56 °
Lake Catherine, Sunday, 15 November
Overcast. High 56°, low 38°.
Pressure29.77 inHg
Wind15.1 mph NW
Humidity49%
Visibility—
Dew point34°
Mon, 1644° / 36°0
44 °
Lake Catherine, Monday, 16 November
Overcast. High 44°, low 36°.
Pressure30.12 inHg
Wind17.2 mph NW
Humidity49%
Visibility—
Dew point22°
Tue, 1744° / 38°0.01
44 °
Lake Catherine, Tuesday, 17 November
Light rain. High 44°, low 38°.
Pressure29.94 inHg
Wind10.6 mph SW
Humidity78%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 1846° / 35°0.1
46 °
Lake Catherine, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high64° (1975)
Record low12° (2014)
Thu, 1946° / 35°0.07
46 °
Lake Catherine, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.07 in
Chance of precipitation32%
Record high63° (1983)
Record low15° (2018)
Fri, 2044° / 33°0.07
44 °
Lake Catherine, Friday, 20 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.07 in
Chance of precipitation35%
Record high61° (2003)
Record low13° (2022)
Sat, 2143° / 32°0.1
43 °
Lake Catherine, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.1 in
Chance of precipitation25%
Record high64° (1990)
Record low11° (1964)
Sun, 2243° / 31°0.04
43 °
Lake Catherine, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.04 in
Chance of precipitation18%
Record high62° (2010)
Record low14° (2015)
Mon, 2343° / 32°0.07
43 °
Lake Catherine, Monday, 23 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.07 in
Chance of precipitation30%
Record high63° (2003)
Record low12° (1970)
Tue, 2442° / 30°0.08
42 °
Lake Catherine, Tuesday, 24 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.08 in
Chance of precipitation28%
Record high60° (1966)
Record low14° (2013)
Wed, 2542° / 32°0.09
42 °
Lake Catherine, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.09 in
Chance of precipitation33%
Record high59° (1966)
Record low16° (2005)
Thu, 2642° / 31°0.12
42 °
Lake Catherine, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.12 in
Chance of precipitation45%
Record high61° (1990)
Record low6° (1977)
Fri, 2741° / 31°0.21
41 °
Lake Catherine, Friday, 27 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.21 in
Chance of precipitation50%
Record high63° (1990)
Record low15° (1977)
Sat, 2839° / 28°0.12
39 °
Lake Catherine, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.12 in
Chance of precipitation35%
Record high62° (1990)
Record low4° (2018)
Sun, 2940° / 28°0.08
40 °
Lake Catherine, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high40°
Average low28°
Average precipitation0.08 in
Chance of precipitation37%
Record high63° (1998)
Record low7° (1976)
Mon, 3040° / 29°0.07
40 °
Lake Catherine, Monday, 30 November
Climate normal for this date — 60-year average.
Average high40°
Average low29°
Average precipitation0.07 in
Chance of precipitation32%
Record high64° (1998)
Record low10° (1964)
Tue, 0138° / 27°0.14
38 °
Lake Catherine, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.14 in
Chance of precipitation43%
Record high61° (1970)
Record low11° (2025)
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 Lake Catherine, 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 Lake Catherine, 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.