Monthly outlook for Lake Barrington, IL: average high 54.2°, average low 42.3°. That is 3.5° above the climate normal for November. Precipitation is expected on 3 days (about 0.9 inches), against a normal of 4 days and 1.3 inches. The warmest day looks like 3 November (67.7°), the coolest 13 November (33.7°).
54.2°/42.3°
Average high / low
+3.5°
Above normal
3 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
3 November – 12 November
55.4°
49.4°
+3.4°
13 November – 22 November
52.3°
45°
+4.1°
23 November – 2 December
at normal
40.4°
—
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 (12 mi).
Wed, 0463° / 54°0.52
63 °
Lake Barrington, Wednesday, 4 November
Heavy rain. High 63°, low 54°.
Pressure29.62 inHg
Wind15 mph SW
Humidity75%
Visibility6.2 mi
Dew point53°
Thu, 0554° / 48°0.06
54 °
Lake Barrington, Thursday, 5 November
Light rain. High 54°, low 48°.
Pressure29.74 inHg
Wind13.1 mph SW
Humidity82%
Visibility5.7 mi
Dew point45°
Fri, 0647° / 43°0.02
47 °
Lake Barrington, Friday, 6 November
Light rain. High 47°, low 43°.
Pressure30.12 inHg
Wind11.6 mph N
Humidity66%
Visibility6.2 mi
Dew point37°
Sat, 0749° / 36°0
49 °
Lake Barrington, Saturday, 7 November
Clear. High 49°, low 36°.
Pressure30.18 inHg
Wind6.8 mph W
Humidity55%
Visibility—
Dew point31°
Sun, 0857° / 39°0
57 °
Lake Barrington, Sunday, 8 November
Overcast. High 57°, low 39°.
Pressure30.06 inHg
Wind9.3 mph W
Humidity59%
Visibility—
Dew point40°
Mon, 0959° / 41°0
59 °
Lake Barrington, Monday, 9 November
Overcast. High 59°, low 41°.
Pressure30.03 inHg
Wind12 mph SW
Humidity40%
Visibility—
Dew point31°
Tue, 1055° / 47°0
55 °
Lake Barrington, Tuesday, 10 November
Overcast. High 55°, low 47°.
Pressure30.06 inHg
Wind12.2 mph SW
Humidity37%
Visibility—
Dew point28°
Wed, 1153° / 41°0
53 °
Lake Barrington, Wednesday, 11 November
Overcast. High 53°, low 41°.
Pressure30.21 inHg
Wind5.7 mph NE
Humidity39%
Visibility—
Dew point27°
Thu, 1248° / 36°0
48 °
Lake Barrington, Thursday, 12 November
Overcast. High 48°, low 36°.
Pressure30.24 inHg
Wind10 mph N
Humidity55%
Visibility—
Dew point31°
Fri, 1349° / 34°0
49 °
Lake Barrington, Friday, 13 November
Clear. High 49°, low 34°.
Pressure30.24 inHg
Wind6.2 mph W
Humidity52%
Visibility—
Dew point29°
Sat, 1451° / 36°0
51 °
Lake Barrington, Saturday, 14 November
Clear. High 51°, low 36°.
Pressure30.24 inHg
Wind8.5 mph SW
Humidity49%
Visibility—
Dew point30°
Sun, 1552° / 36°0
52 °
Lake Barrington, Sunday, 15 November
Clear. High 52°, low 36°.
Pressure30.12 inHg
Wind8.9 mph S
Humidity40%
Visibility—
Dew point26°
Mon, 1651° / 38°0
51 °
Lake Barrington, Monday, 16 November
Overcast. High 51°, low 38°.
Pressure29.85 inHg
Wind7.9 mph SE
Humidity39%
Visibility—
Dew point25°
Tue, 1755° / 44°0
55 °
Lake Barrington, Tuesday, 17 November
Overcast. High 55°, low 44°.
Pressure29.68 inHg
Wind5.6 mph NW
Humidity56%
Visibility—
Dew point37°
Wed, 1857° / 43°0
57 °
Lake Barrington, Wednesday, 18 November
Overcast. High 57°, low 43°.
Pressure29.97 inHg
Wind6.4 mph SE
Humidity64%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1946° / 35°0.07
46 °
Lake Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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 Barrington, 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)
Wed, 0238° / 28°0.07
38 °
Lake Barrington, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high38°
Average low28°
Average precipitation0.07 in
Chance of precipitation32%
Record high64° (1982)
Record low5° (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 Lake Barrington, 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 Barrington, 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.