As of 18:40 CDT

Weather in Clear Lake, IL

56°

Clear Lake, Friday, 30 October, 18:40

Overcast. Feels like 55°. High 68°, low 53°.

Pressure30.27 inHg

Wind10.4 mph E

Humidity82%

Visibility6.2 mi

Dew point50°

See detailed hourly forecast

Monthly outlook for Clear Lake, IL: average high 70.4°, average low 57.3°. That is 8.3° above the climate normal for October. Precipitation is expected on 5 days (about 2.3 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 12 November (77.3°), the coolest 14 November (50.5°).

70.4°/57.3°

Average high / low

+8.3°

Above normal

5 / 5

Wet days / normal

2.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	70.3°	57.2°	+7.3°
9 November – 18 November	70.6°	52.1°	+10.3°
19 November – 28 November	at normal	48.1°	—

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).

Sat, 3167° / 59°

67 °

Clear Lake, Saturday, 31 October

Overcast. High 67°, low 59°.

Pressure30.30 inHg

Wind5.3 mph SE

Humidity52%

Visibility6.2 mi

Dew point44°

Sun, 0169° / 57°

69 °

Clear Lake, Sunday, 1 November

Overcast. High 69°, low 57°.

Pressure30.30 inHg

Wind7.9 mph SE

Humidity65%

Visibility6.2 mi

Dew point53°

Mon, 0268° / 57°

68 °

Clear Lake, Monday, 2 November

Overcast. High 68°, low 57°.

Pressure30.12 inHg

Wind9.8 mph SE

Humidity66%

Visibility6.2 mi

Dew point51°

Tue, 0371° / 64°

0.16

71 °

Clear Lake, Tuesday, 3 November

Light rain. High 71°, low 64°.

Pressure29.85 inHg

Wind17.3 mph S

Humidity66%

Visibility6.2 mi

Dew point58°

Wed, 0468° / 61°

0.57

68 °

Clear Lake, Wednesday, 4 November

Rain. High 68°, low 61°.

Pressure29.71 inHg

Wind13 mph S

Humidity78%

Visibility—

Dew point58°

Thu, 0573° / 57°

73 °

Clear Lake, Thursday, 5 November

Overcast. High 73°, low 57°.

Pressure29.94 inHg

Wind9 mph S

Humidity37%

Visibility—

Dew point42°

Fri, 0673° / 53°

73 °

Clear Lake, Friday, 6 November

Partly cloudy. High 73°, low 53°.

Pressure29.97 inHg

Wind10.1 mph SW

Humidity41%

Visibility—

Dew point44°

Sat, 0772° / 57°

72 °

Clear Lake, Saturday, 7 November

Overcast. High 72°, low 57°.

Pressure30.03 inHg

Wind7.8 mph S

Humidity40%

Visibility—

Dew point44°

Sun, 0874° / 59°

0.01

74 °

Clear Lake, Sunday, 8 November

Light rain. High 74°, low 59°.

Pressure30.12 inHg

Wind11.3 mph SE

Humidity63%

Visibility—

Dew point57°

Mon, 0977° / 62°

77 °

Clear Lake, Monday, 9 November

Overcast. High 77°, low 62°.

Pressure30.18 inHg

Wind13.8 mph SE

Humidity46%

Visibility—

Dew point52°

Tue, 1070° / 60°

0.77

70 °

Clear Lake, Tuesday, 10 November

Heavy rain. High 70°, low 60°.

Pressure30.06 inHg

Wind8.8 mph SE

Humidity81%

Visibility—

Dew point61°

Wed, 1171° / 57°

71 °

Clear Lake, Wednesday, 11 November

Mostly clear. High 71°, low 57°.

Pressure29.91 inHg

Wind9.8 mph SW

Humidity45%

Visibility—

Dew point46°

Thu, 1277° / 57°

0.24

77 °

Clear Lake, Thursday, 12 November

Rain. High 77°, low 57°.

Pressure29.74 inHg

Wind16.2 mph S

Humidity57%

Visibility—

Dew point55°

Fri, 1370° / 56°

0.5

70 °

Clear Lake, Friday, 13 November

Rain. High 70°, low 56°.

Pressure29.53 inHg

Wind15.8 mph S

Humidity58%

Visibility—

Dew point54°

Sat, 1458° / 50°

58 °

Clear Lake, Saturday, 14 November

Overcast. High 58°, low 50°.

Pressure29.74 inHg

Wind16.8 mph W

Humidity50%

Visibility—

Dew point37°

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

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)

Thu, 2648° / 33°

0.15

48 °

Clear Lake, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high48°

Average low33°

Average precipitation0.15 in

Chance of precipitation42%

Record high71° (1965)

Record low8° (1977)

Fri, 2746° / 33°

0.2

46 °

Clear Lake, Friday, 27 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.2 in

Chance of precipitation43%

Record high68° (1989)

Record low12° (1993)

Sat, 2844° / 31°

0.11

44 °

Clear Lake, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.11 in

Chance of precipitation22%

Record high67° (1998)

Record low8° (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.