As of 01:34 CDT

Weather in Clear Lake, IL

52°

Clear Lake, Tuesday, 27 October, 01:34

Clear. Feels like 51°. High 74°, low 51°.

Pressure30.24 inHg

Wind0 mph N

Humidity87%

Visibility6.2 mi

Dew point48°

See detailed hourly forecast

Monthly outlook for Clear Lake, IL: average high 60.7°, average low 47.8°. That is 2.1° above the climate normal for October. Precipitation is expected on 8 days (about 3.7 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 28 October (77.5°), the coolest 7 November (30°).

60.7°/47.8°

Average high / low

+2.1°

Above normal

8 / 5

Wet days / normal

3.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	68.1°	58.4°	+5.4°
6 November – 15 November	48.4°	53.2°	-2.7°
16 November – 25 November	at normal	49.8°	—

October records over 66 years

89.4°7 October 2007All-time high

24.8°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Springfield (5 mi).

Wed, 2877° / 52°

77 °

Clear Lake, Wednesday, 28 October

Clear. High 77°, low 52°.

Pressure30.18 inHg

Wind7.7 mph S

Humidity49%

Visibility6.2 mi

Dew point51°

Thu, 2977° / 58°

0.01

77 °

Clear Lake, Thursday, 29 October

Light rain. High 77°, low 58°.

Pressure30.12 inHg

Wind8.6 mph SW

Humidity55%

Visibility6.2 mi

Dew point55°

Fri, 3075° / 56°

0.01

75 °

Clear Lake, Friday, 30 October

Light rain. High 75°, low 56°.

Pressure30.21 inHg

Wind6.4 mph SE

Humidity74%

Visibility6.2 mi

Dew point60°

Sat, 3170° / 59°

0.19

70 °

Clear Lake, Saturday, 31 October

Rain. High 70°, low 59°.

Pressure30.12 inHg

Wind7.1 mph S

Humidity70%

Visibility—

Dew point57°

Sun, 0169° / 58°

0.13

69 °

Clear Lake, Sunday, 1 November

Light rain. High 69°, low 58°.

Pressure29.94 inHg

Wind9.3 mph N

Humidity69%

Visibility—

Dew point56°

Mon, 0265° / 55°

0.06

65 °

Clear Lake, Monday, 2 November

Light rain. High 65°, low 55°.

Pressure29.80 inHg

Wind16.2 mph SE

Humidity64%

Visibility—

Dew point50°

Tue, 0367° / 62°

0.63

67 °

Clear Lake, Tuesday, 3 November

Rain. High 67°, low 62°.

Pressure29.77 inHg

Wind18.5 mph SE

Humidity87%

Visibility—

Dew point61°

Wed, 0461° / 50°

1.59

61 °

Clear Lake, Wednesday, 4 November

Heavy rain. High 61°, low 50°.

Pressure29.62 inHg

Wind19.6 mph W

Humidity56%

Visibility—

Dew point42°

Thu, 0547° / 38°

0.06

47 °

Clear Lake, Thursday, 5 November

Light rain. High 47°, low 38°.

Pressure29.68 inHg

Wind24.1 mph W

Humidity66%

Visibility—

Dew point32°

Fri, 0640° / 32°

40 °

Clear Lake, Friday, 6 November

Overcast. High 40°, low 32°.

Pressure29.91 inHg

Wind20.3 mph NW

Humidity53%

Visibility—

Dew point22°

Sat, 0744° / 30°

44 °

Clear Lake, Saturday, 7 November

Clear. High 44°, low 30°.

Pressure30.15 inHg

Wind12.3 mph NW

Humidity38%

Visibility—

Dew point17°

Sun, 0853° / 32°

53 °

Clear Lake, Sunday, 8 November

Overcast. High 53°, low 32°.

Pressure30.09 inHg

Wind15.4 mph S

Humidity32%

Visibility—

Dew point19°

Mon, 0952° / 47°

0.64

52 °

Clear Lake, Monday, 9 November

Rain. High 52°, low 47°.

Pressure29.68 inHg

Wind18.1 mph S

Humidity93%

Visibility—

Dew point46°

Tue, 1058° / 44°

0.01

58 °

Clear Lake, Tuesday, 10 November

Light rain. High 58°, low 44°.

Pressure29.77 inHg

Wind11.2 mph W

Humidity61%

Visibility—

Dew point42°

Wed, 1145° / 40°

0.41

45 °

Clear Lake, Wednesday, 11 November

Rain. High 45°, low 40°.

Pressure29.97 inHg

Wind14.4 mph N

Humidity61%

Visibility—

Dew point31°

From day 17 onward the outlook is built from 60-year climate statistics

Thu, 1250° / 35°

0.06

50 °

Clear Lake, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high50°

Average low35°

Average precipitation0.06 in

Chance of precipitation18%

Record high72° (2010)

Record low10° (2019)

Fri, 1351° / 36°

0.06

51 °

Clear Lake, Friday, 13 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.06 in

Chance of precipitation17%

Record high73° (1999)

Record low9° (1986)

Sat, 1452° / 37°

0.07

52 °

Clear Lake, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.07 in

Chance of precipitation28%

Record high74° (1971)

Record low13° (1986)

Sun, 1551° / 37°

0.1

51 °

Clear Lake, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.1 in

Chance of precipitation28%

Record high73° (1971)

Record low19° (2019)

Mon, 1651° / 36°

0.08

51 °

Clear Lake, Monday, 16 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.08 in

Chance of precipitation22%

Record high71° (1971)

Record low22° (1997)

Tue, 1752° / 37°

0.12

52 °

Clear Lake, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high52°

Average low37°

Average precipitation0.12 in

Chance of precipitation27%

Record high74° (2016)

Record low19° (2005)

Wed, 1852° / 38°

0.18

52 °

Clear Lake, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high52°

Average low38°

Average precipitation0.18 in

Chance of precipitation30%

Record high69° (1999)

Record low14° (2014)

Thu, 1951° / 37°

0.08

51 °

Clear Lake, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high51°

Average low37°

Average precipitation0.08 in

Chance of precipitation22%

Record high71° (1979)

Record low20° (2014)

Fri, 2051° / 36°

0.11

51 °

Clear Lake, Friday, 20 November

Climate normal for this date — 60-year average.

Average high51°

Average low36°

Average precipitation0.11 in

Chance of precipitation30%

Record high70° (2007)

Record low18° (2022)

Sat, 2149° / 35°

0.1

49 °

Clear Lake, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high49°

Average low35°

Average precipitation0.1 in

Chance of precipitation28%

Record high69° (1990)

Record low12° (1964)

Sun, 2249° / 34°

0.08

49 °

Clear Lake, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.08 in

Chance of precipitation28%

Record high72° (2010)

Record low15° (1964)

Mon, 2349° / 34°

0.08

49 °

Clear Lake, Monday, 23 November

Climate normal for this date — 60-year average.

Average high49°

Average low34°

Average precipitation0.08 in

Chance of precipitation25%

Record high66° (2003)

Record low13° (1970)

Tue, 2447° / 33°

0.11

47 °

Clear Lake, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.11 in

Chance of precipitation25%

Record high67° (1966)

Record low13° (1970)

Wed, 2547° / 33°

0.09

47 °

Clear Lake, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.09 in

Chance of precipitation37%

Record high65° (2006)

Record low13° (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 Clear Lake, 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 Clear Lake, 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.