As of 09:48 CDT

Weather in Clear Lake, IL

56°

Clear Lake, Sunday, 25 October, 09:48

Clear. Feels like 54°. High 75°, low 49°.

Pressure30.42 inHg

Wind0 mph N

Humidity70%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Clear Lake, IL: average high 68.2°, average low 52.4°. That is 5.7° above the climate normal for October. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 29 October (76.9°), the coolest 6 November (44°).

68.2°/52.4°

Average high / low

+5.7°

Above normal

4 / 5

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
25 October – 3 November	72.4°	59.3°	+7.3°
4 November – 13 November	61.3°	54°	+4.1°
14 November – 23 November	at normal	50.6°	—

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).

Mon, 2674° / 51°

74 °

Clear Lake, Monday, 26 October

Overcast. High 74°, low 51°.

Pressure30.33 inHg

Wind2.2 mph S

Humidity59%

Visibility6.2 mi

Dew point54°

Tue, 2770° / 52°

70 °

Clear Lake, Tuesday, 27 October

Overcast. High 70°, low 52°.

Pressure30.24 inHg

Wind7.3 mph S

Humidity56%

Visibility6.2 mi

Dew point52°

Wed, 2873° / 56°

73 °

Clear Lake, Wednesday, 28 October

Clear. High 73°, low 56°.

Pressure30.21 inHg

Wind6.7 mph S

Humidity62%

Visibility6.2 mi

Dew point54°

Thu, 2977° / 58°

0.01

77 °

Clear Lake, Thursday, 29 October

Light rain. High 77°, low 58°.

Pressure30.12 inHg

Wind10.9 mph SW

Humidity53%

Visibility—

Dew point55°

Fri, 3070° / 57°

70 °

Clear Lake, Friday, 30 October

Overcast. High 70°, low 57°.

Pressure30.24 inHg

Wind6.2 mph SE

Humidity72%

Visibility—

Dew point56°

Sat, 3168° / 60°

0.09

68 °

Clear Lake, Saturday, 31 October

Light rain. High 68°, low 60°.

Pressure30.12 inHg

Wind10.2 mph S

Humidity54%

Visibility—

Dew point48°

Sun, 0169° / 60°

0.44

69 °

Clear Lake, Sunday, 1 November

Rain. High 69°, low 60°.

Pressure30.03 inHg

Wind11.5 mph S

Humidity78%

Visibility—

Dew point58°

Mon, 0274° / 58°

74 °

Clear Lake, Monday, 2 November

Overcast. High 74°, low 58°.

Pressure30.00 inHg

Wind17.3 mph S

Humidity53%

Visibility—

Dew point52°

Tue, 0373° / 58°

0.11

73 °

Clear Lake, Tuesday, 3 November

Light rain. High 73°, low 58°.

Pressure29.85 inHg

Wind17 mph S

Humidity43%

Visibility—

Dew point48°

Wed, 0466° / 49°

66 °

Clear Lake, Wednesday, 4 November

Clear. High 66°, low 49°.

Pressure29.85 inHg

Wind18.7 mph W

Humidity27%

Visibility—

Dew point29°

Thu, 0559° / 48°

59 °

Clear Lake, Thursday, 5 November

Overcast. High 59°, low 48°.

Pressure29.83 inHg

Wind10 mph NW

Humidity55%

Visibility—

Dew point39°

Fri, 0660° / 44°

60 °

Clear Lake, Friday, 6 November

Clear. High 60°, low 44°.

Pressure29.83 inHg

Wind11.1 mph NW

Humidity49%

Visibility—

Dew point38°

Sat, 0768° / 46°

0.02

68 °

Clear Lake, Saturday, 7 November

Light rain. High 68°, low 46°.

Pressure29.65 inHg

Wind17.3 mph SE

Humidity38%

Visibility—

Dew point37°

Sun, 0862° / 48°

0.04

62 °

Clear Lake, Sunday, 8 November

Light rain. High 62°, low 48°.

Pressure29.50 inHg

Wind20.6 mph W

Humidity49%

Visibility—

Dew point41°

Mon, 0954° / 45°

0.03

54 °

Clear Lake, Monday, 9 November

Light rain. High 54°, low 45°.

Pressure29.97 inHg

Wind21 mph NW

Humidity49%

Visibility—

Dew point33°

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

Tue, 1054° / 39°

0.15

54 °

Clear Lake, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high54°

Average low39°

Average precipitation0.15 in

Chance of precipitation30%

Record high73° (2020)

Record low19° (2018)

Wed, 1152° / 36°

0.09

52 °

Clear Lake, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high52°

Average low36°

Average precipitation0.09 in

Chance of precipitation32%

Record high74° (1964)

Record low19° (2019)

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)

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.