As of 07:30 CDT

Weather in Lake Barrington, IL

51°Current weather

Lake Barrington, Wednesday, 28 October, 07:30

Clear. Feels like 50°. High 73°, low 52°.

Pressure30.18 inHg
Wind3 mph NE
Humidity89%
Visibility6.2 mi
Dew point49°

Monthly outlook for Lake Barrington, IL: average high 57.2°, average low 45.7°. That is 3.4° above the climate normal for October. Precipitation is expected on 8 days (about 6.0 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 28 October (73.3°), the coolest 7 November (35.4°).

57.2°/45.7°
Average high / low
+3.4°
Above normal
8 / 5
Wet days / normal
6.0 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
28 October – 6 November61.1°52.7°+4.7°
7 November – 16 November50.7°47.2°+2°
17 November – 26 Novemberat normal43.7°—

October records over 66 years

86.9°3 October 2025All-time high
26.1°30 October 1988All-time low

Climate normals and records are computed from the nearest reference point — Round Lake Beach (12 mi).

Thu, 2968° / 49°0.14Rain
68 °Rain

Lake Barrington, Thursday, 29 October

Rain. High 68°, low 49°.

Pressure30.09 inHg
Wind7.7 mph W
Humidity89%
Visibility6.2 mi
Dew point59°
Fri, 3061° / 44°0.02Light rain
61 °Light rain

Lake Barrington, Friday, 30 October

Light rain. High 61°, low 44°.

Pressure30.33 inHg
Wind5.2 mph E
Humidity67%
Visibility6.2 mi
Dew point49°
Sat, 3157° / 51°1.16Heavy rain
57 °Heavy rain

Lake Barrington, Saturday, 31 October

Heavy rain. High 57°, low 51°.

Pressure30.30 inHg
Wind4.6 mph SE
Humidity96%
Visibility3.4 mi
Dew point53°
Sun, 0164° / 48°0Overcast
64 °Overcast

Lake Barrington, Sunday, 1 November

Overcast. High 64°, low 48°.

Pressure30.33 inHg
Wind6.4 mph SE
Humidity77%
Visibility—
Dew point54°
Mon, 0267° / 55°0.01Light rain
67 °Light rain

Lake Barrington, Monday, 2 November

Light rain. High 67°, low 55°.

Pressure30.09 inHg
Wind14 mph SE
Humidity76%
Visibility—
Dew point56°
Tue, 0358° / 55°1.58Rain
58 °Rain

Lake Barrington, Tuesday, 3 November

Rain. High 58°, low 55°.

Pressure29.83 inHg
Wind18.3 mph E
Humidity95%
Visibility—
Dew point54°
Wed, 0459° / 56°0.99Rain
59 °Rain

Lake Barrington, Wednesday, 4 November

Rain. High 59°, low 56°.

Pressure29.85 inHg
Wind9 mph SE
Humidity96%
Visibility—
Dew point57°
Thu, 0557° / 46°1.43Rain
57 °Rain

Lake Barrington, Thursday, 5 November

Rain. High 57°, low 46°.

Pressure29.62 inHg
Wind19.7 mph N
Humidity97%
Visibility—
Dew point53°
Fri, 0647° / 37°0.02Light rain
47 °Light rain

Lake Barrington, Friday, 6 November

Light rain. High 47°, low 37°.

Pressure30.09 inHg
Wind18.2 mph N
Humidity64%
Visibility—
Dew point34°
Sat, 0749° / 35°0Overcast
49 °Overcast

Lake Barrington, Saturday, 7 November

Overcast. High 49°, low 35°.

Pressure30.27 inHg
Wind6.1 mph N
Humidity62%
Visibility—
Dew point34°
Sun, 0851° / 36°0Clear
51 °Clear

Lake Barrington, Sunday, 8 November

Clear. High 51°, low 36°.

Pressure30.27 inHg
Wind7.9 mph SW
Humidity57%
Visibility—
Dew point34°
Mon, 0954° / 39°0Partly cloudy
54 °Partly cloudy

Lake Barrington, Monday, 9 November

Partly cloudy. High 54°, low 39°.

Pressure30.18 inHg
Wind11.6 mph SW
Humidity48%
Visibility—
Dew point32°
Tue, 1053° / 44°0.15Rain
53 °Rain

Lake Barrington, Tuesday, 10 November

Rain. High 53°, low 44°.

Pressure29.94 inHg
Wind15.1 mph S
Humidity60%
Visibility—
Dew point38°
Wed, 1153° / 44°0.22Rain
53 °Rain

Lake Barrington, Wednesday, 11 November

Rain. High 53°, low 44°.

Pressure29.65 inHg
Wind12.3 mph W
Humidity64%
Visibility—
Dew point40°
Thu, 1244° / 40°0.25Rain
44 °Rain

Lake Barrington, Thursday, 12 November

Rain. High 44°, low 40°.

Pressure29.38 inHg
Wind9.3 mph N
Humidity93%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 1345° / 33°0.05Climate normal
45 °Climate normal

Lake Barrington, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°
Average low33°
Average precipitation0.05 in
Chance of precipitation25%
Record high67° (1999)
Record low2° (2019)
Sat, 1446° / 34°0.07Climate normal
46 °Climate normal

Lake Barrington, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.07 in
Chance of precipitation28%
Record high66° (1971)
Record low15° (1986)
Sun, 1546° / 35°0.08Climate normal
46 °Climate normal

Lake Barrington, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation28%
Record high68° (2025)
Record low17° (2019)
Mon, 1646° / 34°0.05Climate normal
46 °Climate normal

Lake Barrington, Monday, 16 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.05 in
Chance of precipitation17%
Record high62° (1988)
Record low21° (1997)
Tue, 1746° / 35°0.1Climate normal
46 °Climate normal

Lake Barrington, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation28%
Record high68° (2016)
Record low15° (2014)
Wed, 1846° / 35°0.1Climate normal
46 °Climate normal

Lake Barrington, 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°0.07Climate normal
46 °Climate normal

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°0.07Climate normal
44 °Climate normal

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°0.1Climate normal
43 °Climate normal

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°0.04Climate normal
43 °Climate normal

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°0.07Climate normal
43 °Climate normal

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°0.08Climate normal
42 °Climate normal

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°0.09Climate normal
42 °Climate normal

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°0.12Climate normal
42 °Climate normal

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)

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.