As of 18:33 CDT

Weather in Lake Catherine, IL

64°Current weather

Lake Catherine, Sunday, 25 October, 18:33

Overcast. Feels like 63°. High 74°, low 52°.

Pressure30.33 inHg
Wind5.7 mph S
Humidity66%
Visibility6.2 mi
Dew point51°

Monthly outlook for Lake Catherine, IL: average high 60.5°, average low 48.3°. That is 4.4° above the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 1.5 inches. The warmest day looks like 25 October (73.5°), the coolest 9 November (38.1°).

60.5°/48.3°
Average high / low
+4.4°
Above normal
4 / 5
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
25 October – 3 November62.9°53.9°+5°
4 November – 13 November56.4°48.7°+4.3°
14 November – 23 Novemberat normal44.8°—

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).

Mon, 2666° / 51°0Overcast
66 °Overcast

Lake Catherine, Monday, 26 October

Overcast. High 66°, low 51°.

Pressure30.36 inHg
Wind8 mph NE
Humidity69%
Visibility6.2 mi
Dew point50°
Tue, 2764° / 50°0Overcast
64 °Overcast

Lake Catherine, Tuesday, 27 October

Overcast. High 64°, low 50°.

Pressure30.24 inHg
Wind8.9 mph SE
Humidity73%
Visibility6.2 mi
Dew point53°
Wed, 2864° / 54°0.01Light rain
64 °Light rain

Lake Catherine, Wednesday, 28 October

Light rain. High 64°, low 54°.

Pressure30.18 inHg
Wind6.6 mph S
Humidity72%
Visibility6.2 mi
Dew point53°
Thu, 2966° / 54°0.02Light rain
66 °Light rain

Lake Catherine, Thursday, 29 October

Light rain. High 66°, low 54°.

Pressure30.03 inHg
Wind11.2 mph SW
Humidity74%
Visibility6.2 mi
Dew point56°
Fri, 3065° / 50°0Overcast
65 °Overcast

Lake Catherine, Friday, 30 October

Overcast. High 65°, low 50°.

Pressure30.18 inHg
Wind4.1 mph NW
Humidity65%
Visibility—
Dew point51°
Sat, 3158° / 49°0Overcast
58 °Overcast

Lake Catherine, Saturday, 31 October

Overcast. High 58°, low 49°.

Pressure30.27 inHg
Wind6.9 mph SE
Humidity53%
Visibility—
Dew point40°
Sun, 0152° / 50°0.05Light rain
52 °Light rain

Lake Catherine, Sunday, 1 November

Light rain. High 52°, low 50°.

Pressure30.21 inHg
Wind5.2 mph S
Humidity82%
Visibility—
Dew point46°
Mon, 0261° / 50°0Mostly clear
61 °Mostly clear

Lake Catherine, Monday, 2 November

Mostly clear. High 61°, low 50°.

Pressure30.18 inHg
Wind10.4 mph E
Humidity62%
Visibility—
Dew point47°
Tue, 0358° / 48°0Overcast
58 °Overcast

Lake Catherine, Tuesday, 3 November

Overcast. High 58°, low 48°.

Pressure30.18 inHg
Wind11.4 mph E
Humidity61%
Visibility—
Dew point43°
Wed, 0461° / 47°0Overcast
61 °Overcast

Lake Catherine, Wednesday, 4 November

Overcast. High 61°, low 47°.

Pressure30.06 inHg
Wind8.6 mph S
Humidity56%
Visibility—
Dew point43°
Thu, 0559° / 45°0.04Light rain
59 °Light rain

Lake Catherine, Thursday, 5 November

Light rain. High 59°, low 45°.

Pressure29.94 inHg
Wind6.8 mph NW
Humidity60%
Visibility—
Dew point44°
Fri, 0655° / 43°0Overcast
55 °Overcast

Lake Catherine, Friday, 6 November

Overcast. High 55°, low 43°.

Pressure30.00 inHg
Wind7.9 mph E
Humidity56%
Visibility—
Dew point38°
Sat, 0760° / 45°0.2Rain
60 °Rain

Lake Catherine, Saturday, 7 November

Rain. High 60°, low 45°.

Pressure29.80 inHg
Wind13.5 mph S
Humidity57%
Visibility—
Dew point43°
Sun, 0858° / 47°0.11Light rain
58 °Light rain

Lake Catherine, Sunday, 8 November

Light rain. High 58°, low 47°.

Pressure29.59 inHg
Wind18.2 mph W
Humidity51%
Visibility—
Dew point39°
Mon, 0945° / 38°0.1Light rain
45 °Light rain

Lake Catherine, Monday, 9 November

Light rain. High 45°, low 38°.

Pressure29.44 inHg
Wind14.8 mph W
Humidity75%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1049° / 37°0.11Climate normal
49 °Climate normal

Lake Catherine, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high72° (2022)
Record low16° (2017)
Wed, 1146° / 35°0.08Climate normal
46 °Climate normal

Lake Catherine, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high46°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high67° (1964)
Record low15° (2019)
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)

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.