Monthly outlook for Lake Barrington, IL: average high 53.5°, average low 40.2°. That is 4° above the climate normal for November. Precipitation is expected on 3 days (about 0.2 inches), against a normal of 4 days and 1.2 inches. The warmest day looks like 22 November (60.4°), the coolest 14 November (29.2°).
53.5°/40.2°
Average high / low
+4°
Above normal
3 / 4
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 November – 16 November
51.5°
47.2°
+2.4°
17 November – 26 November
56.8°
43.7°
+7.3°
27 November – 6 December
at normal
38.4°
—
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).
Sun, 0856° / 37°0
56 °
Lake Barrington, Sunday, 8 November
Clear. High 56°, low 37°.
Pressure29.97 inHg
Wind12.1 mph W
Humidity55%
Visibility6.2 mi
Dew point40°
Mon, 0956° / 36°0
56 °
Lake Barrington, Monday, 9 November
Overcast. High 56°, low 36°.
Pressure30.15 inHg
Wind6.5 mph SW
Humidity60%
Visibility6.2 mi
Dew point40°
Tue, 1059° / 42°0
59 °
Lake Barrington, Tuesday, 10 November
Partly cloudy. High 59°, low 42°.
Pressure30.06 inHg
Wind3.5 mph NW
Humidity57%
Visibility6.2 mi
Dew point42°
Wed, 1154° / 41°0.09
54 °
Lake Barrington, Wednesday, 11 November
Light rain. High 54°, low 41°.
Pressure29.85 inHg
Wind7.7 mph N
Humidity71%
Visibility—
Dew point43°
Thu, 1245° / 37°0
45 °
Lake Barrington, Thursday, 12 November
Overcast. High 45°, low 37°.
Pressure29.91 inHg
Wind15.5 mph N
Humidity59%
Visibility—
Dew point31°
Fri, 1341° / 34°0
41 °
Lake Barrington, Friday, 13 November
Overcast. High 41°, low 34°.
Pressure30.00 inHg
Wind18.5 mph NE
Humidity51%
Visibility—
Dew point24°
Sat, 1447° / 29°0
47 °
Lake Barrington, Saturday, 14 November
Clear. High 47°, low 29°.
Pressure30.03 inHg
Wind11 mph N
Humidity36%
Visibility—
Dew point17°
Sun, 1552° / 34°0
52 °
Lake Barrington, Sunday, 15 November
Overcast. High 52°, low 34°.
Pressure30.03 inHg
Wind14.4 mph SW
Humidity41%
Visibility—
Dew point26°
Mon, 1656° / 40°0
56 °
Lake Barrington, Monday, 16 November
Overcast. High 56°, low 40°.
Pressure30.12 inHg
Wind10.6 mph SW
Humidity56%
Visibility—
Dew point38°
Tue, 1752° / 47°0.02
52 °
Lake Barrington, Tuesday, 17 November
Light rain. High 52°, low 47°.
Pressure30.06 inHg
Wind12 mph SW
Humidity88%
Visibility—
Dew point44°
Wed, 1856° / 42°0
56 °
Lake Barrington, Wednesday, 18 November
Partly cloudy. High 56°, low 42°.
Pressure30.24 inHg
Wind7.4 mph SW
Humidity52%
Visibility—
Dew point37°
Thu, 1959° / 45°0
59 °
Lake Barrington, Thursday, 19 November
Overcast. High 59°, low 45°.
Pressure30.15 inHg
Wind13.3 mph SW
Humidity63%
Visibility—
Dew point45°
Fri, 2058° / 51°0.04
58 °
Lake Barrington, Friday, 20 November
Light rain. High 58°, low 51°.
Pressure29.97 inHg
Wind13.3 mph SW
Humidity75%
Visibility—
Dew point49°
Sat, 2155° / 46°0.02
55 °
Lake Barrington, Saturday, 21 November
Light rain. High 55°, low 46°.
Pressure30.18 inHg
Wind12.9 mph NE
Humidity55%
Visibility—
Dew point39°
Sun, 2260° / 50°0.04
60 °
Lake Barrington, Sunday, 22 November
Light rain. High 60°, low 50°.
Pressure30.09 inHg
Wind8.9 mph NE
Humidity78%
Visibility—
Dew point52°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Thu, 0338° / 27°0.09
38 °
Lake Barrington, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.09 in
Chance of precipitation38%
Record high65° (2012)
Record low6° (1985)
Fri, 0438° / 27°0.06
38 °
Lake Barrington, Friday, 4 December
Climate normal for this date — 60-year average.
Average high38°
Average low27°
Average precipitation0.06 in
Chance of precipitation27%
Record high62° (2017)
Record low4° (2025)
Sat, 0538° / 26°0.07
38 °
Lake Barrington, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high38°
Average low26°
Average precipitation0.07 in
Chance of precipitation35%
Record high65° (2001)
Record low2° (1991)
Sun, 0636° / 24°0.06
36 °
Lake Barrington, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high36°
Average low24°
Average precipitation0.06 in
Chance of precipitation30%
Record high59° (1998)
Record low2° (1972)
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.