As of 02:07 CDT

Weather in Lake Catherine, IL

49°Current weather

Lake Catherine, Tuesday, 27 October, 02:07

Overcast. Feels like 49°. High 67°, low 49°.

Pressure30.27 inHg
Wind1 mph E
Humidity89%
Visibility6.2 mi
Dew point46°

Monthly outlook for Lake Catherine, IL: average high 53.5°, average low 42.7°. That is 1.1° above the climate normal for October. Precipitation is expected on 8 days (about 3.1 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 28 October (70.8°), the coolest 8 November (26.5°).

53.5°/42.7°
Average high / low
+1.1°
Above normal
8 / 5
Wet days / normal
3.1 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
27 October – 5 November60.9°53.1°+4.3°
6 November – 15 November41.4°47.7°-3.5°
16 November – 25 Novemberat normal44°—

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 (8 mi).

Wed, 2871° / 51°0Clear
71 °Clear

Lake Catherine, Wednesday, 28 October

Clear. High 71°, low 51°.

Pressure30.18 inHg
Wind7.3 mph S
Humidity62%
Visibility6.2 mi
Dew point53°
Thu, 2963° / 49°0.04Light rain
63 °Light rain

Lake Catherine, Thursday, 29 October

Light rain. High 63°, low 49°.

Pressure30.06 inHg
Wind8 mph W
Humidity81%
Visibility6.2 mi
Dew point57°
Fri, 3062° / 43°0Overcast
62 °Overcast

Lake Catherine, Friday, 30 October

Overcast. High 62°, low 43°.

Pressure30.27 inHg
Wind3.6 mph SE
Humidity66%
Visibility6.2 mi
Dew point48°
Sat, 3160° / 54°0.75Rain
60 °Rain

Lake Catherine, Saturday, 31 October

Rain. High 60°, low 54°.

Pressure30.18 inHg
Wind6.1 mph E
Humidity97%
Visibility—
Dew point56°
Sun, 0164° / 54°0.15Light rain
64 °Light rain

Lake Catherine, Sunday, 1 November

Light rain. High 64°, low 54°.

Pressure30.00 inHg
Wind6.6 mph E
Humidity77%
Visibility—
Dew point55°
Mon, 0256° / 53°0Overcast
56 °Overcast

Lake Catherine, Monday, 2 November

Overcast. High 56°, low 53°.

Pressure29.88 inHg
Wind7.6 mph E
Humidity85%
Visibility—
Dew point51°
Tue, 0358° / 55°0.59Rain
58 °Rain

Lake Catherine, Tuesday, 3 November

Rain. High 58°, low 55°.

Pressure29.91 inHg
Wind22 mph E
Humidity91%
Visibility—
Dew point55°
Wed, 0457° / 49°0.81Heavy rain
57 °Heavy rain

Lake Catherine, Wednesday, 4 November

Heavy rain. High 57°, low 49°.

Pressure29.50 inHg
Wind27.2 mph SE
Humidity90%
Visibility—
Dew point49°
Thu, 0549° / 34°0.17Snow
49 °Snow

Lake Catherine, Thursday, 5 November

Snow. High 49°, low 34°.

Pressure29.32 inHg
Wind22.6 mph W
Humidity88%
Visibility—
Dew point43°
Fri, 0638° / 30°0.12Snow
38 °Snow

Lake Catherine, Friday, 6 November

Snow. High 38°, low 30°.

Pressure29.71 inHg
Wind22 mph NW
Humidity83%
Visibility—
Dew point31°
Sat, 0737° / 27°0Mostly clear
37 °Mostly clear

Lake Catherine, Saturday, 7 November

Mostly clear. High 37°, low 27°.

Pressure30.06 inHg
Wind15 mph NW
Humidity63%
Visibility—
Dew point24°
Sun, 0841° / 27°0.02Light rain
41 °Light rain

Lake Catherine, Sunday, 8 November

Light rain. High 41°, low 27°.

Pressure30.12 inHg
Wind11.3 mph SE
Humidity44%
Visibility—
Dew point19°
Mon, 0947° / 41°0.41Rain
47 °Rain

Lake Catherine, Monday, 9 November

Rain. High 47°, low 41°.

Pressure29.59 inHg
Wind14.7 mph S
Humidity95%
Visibility—
Dew point43°
Tue, 1046° / 38°0Overcast
46 °Overcast

Lake Catherine, Tuesday, 10 November

Overcast. High 46°, low 38°.

Pressure29.74 inHg
Wind14.5 mph W
Humidity82%
Visibility—
Dew point35°
Wed, 1140° / 30°0Partly cloudy
40 °Partly cloudy

Lake Catherine, Wednesday, 11 November

Partly cloudy. High 40°, low 30°.

Pressure30.00 inHg
Wind11.6 mph N
Humidity49%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 1245° / 34°0.06Climate normal
45 °Climate normal

Lake Catherine, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°
Average low34°
Average precipitation0.06 in
Chance of precipitation22%
Record high64° (1964)
Record low3° (2019)
Fri, 1345° / 33°0.05Climate normal
45 °Climate normal

Lake Catherine, 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 Catherine, 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 Catherine, 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 Catherine, 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 Catherine, 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 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°0.07Climate normal
46 °Climate normal

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°0.07Climate normal
44 °Climate normal

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°0.1Climate normal
43 °Climate normal

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°0.04Climate normal
43 °Climate normal

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°0.07Climate normal
43 °Climate normal

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°0.08Climate normal
42 °Climate normal

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°0.09Climate normal
42 °Climate normal

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)

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.