As of 01:33 CDT

Weather in Holbrook, IL

53°

Holbrook, Friday, 9 October, 01:33

Overcast. Feels like 51°. High 76°, low 52°.

Pressure30.12 inHg

Wind0 mph N

Humidity77%

Visibility6.2 mi

Dew point46°

See detailed hourly forecast

Monthly outlook for Holbrook, IL: average high 66.7°, average low 51.2°. That is 3.2° above the climate normal for October. Precipitation is expected on 1 day (about 0.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 15 October (85.4°), the coolest 18 October (41°).

66.7°/51.2°

Average high / low

+3.2°

Above normal

1 / 5

Wet days / normal

0.4 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	70.8°	62.1°	+4.9°
19 October – 28 October	59.9°	57.8°	+1.2°
29 October – 7 November	at normal	54°	—

October records over 66 years

88.5°3 October 2025All-time high

26.1°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — Blue Island (9 mi).

Sat, 1078° / 57°

78 °

Holbrook, Saturday, 10 October

Overcast. High 78°, low 57°.

Pressure30.12 inHg

Wind6.7 mph S

Humidity58%

Visibility6.2 mi

Dew point56°

Sun, 1169° / 57°

69 °

Holbrook, Sunday, 11 October

Overcast. High 69°, low 57°.

Pressure29.94 inHg

Wind4.3 mph NE

Humidity73%

Visibility6.2 mi

Dew point57°

Mon, 1283° / 57°

83 °

Holbrook, Monday, 12 October

Clear. High 83°, low 57°.

Pressure29.85 inHg

Wind8.5 mph SW

Humidity62%

Visibility6.2 mi

Dew point62°

Tue, 1377° / 61°

0.01

77 °

Holbrook, Tuesday, 13 October

Light rain. High 77°, low 61°.

Pressure29.80 inHg

Wind10.1 mph SW

Humidity71%

Visibility—

Dew point66°

Wed, 1462° / 58°

62 °

Holbrook, Wednesday, 14 October

Overcast. High 62°, low 58°.

Pressure30.09 inHg

Wind9.5 mph NE

Humidity68%

Visibility—

Dew point50°

Thu, 1585° / 60°

0.37

85 °

Holbrook, Thursday, 15 October

Rain. High 85°, low 60°.

Pressure29.80 inHg

Wind14.6 mph SW

Humidity60%

Visibility—

Dew point64°

Fri, 1670° / 52°

0.02

70 °

Holbrook, Friday, 16 October

Light rain. High 70°, low 52°.

Pressure30.09 inHg

Wind12.1 mph W

Humidity56%

Visibility—

Dew point45°

Sat, 1752° / 44°

52 °

Holbrook, Saturday, 17 October

Clear. High 52°, low 44°.

Pressure30.45 inHg

Wind11.8 mph N

Humidity33%

Visibility—

Dew point23°

Sun, 1854° / 41°

54 °

Holbrook, Sunday, 18 October

Overcast. High 54°, low 41°.

Pressure30.50 inHg

Wind5.1 mph E

Humidity33%

Visibility—

Dew point23°

Mon, 1957° / 44°

57 °

Holbrook, Monday, 19 October

Overcast. High 57°, low 44°.

Pressure30.47 inHg

Wind6.9 mph NE

Humidity43%

Visibility—

Dew point33°

Tue, 2057° / 48°

57 °

Holbrook, Tuesday, 20 October

Overcast. High 57°, low 48°.

Pressure30.33 inHg

Wind7 mph S

Humidity48%

Visibility—

Dew point33°

Wed, 2166° / 47°

66 °

Holbrook, Wednesday, 21 October

Clear. High 66°, low 47°.

Pressure30.15 inHg

Wind8.9 mph SW

Humidity57%

Visibility—

Dew point46°

Thu, 2265° / 52°

65 °

Holbrook, Thursday, 22 October

Clear. High 65°, low 52°.

Pressure30.15 inHg

Wind11 mph NE

Humidity52%

Visibility—

Dew point45°

Fri, 2354° / 48°

54 °

Holbrook, Friday, 23 October

Overcast. High 54°, low 48°.

Pressure30.33 inHg

Wind12.1 mph NE

Humidity54%

Visibility—

Dew point37°

Sat, 2460° / 41°

60 °

Holbrook, Saturday, 24 October

Clear. High 60°, low 41°.

Pressure30.18 inHg

Wind11.6 mph SW

Humidity39%

Visibility—

Dew point32°

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

Sun, 2557° / 45°

0.13

57 °

Holbrook, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high57°

Average low45°

Average precipitation0.13 in

Chance of precipitation32%

Record high75° (1963)

Record low31° (2006)

Mon, 2656° / 45°

0.11

56 °

Holbrook, Monday, 26 October

Climate normal for this date — 60-year average.

Average high56°

Average low45°

Average precipitation0.11 in

Chance of precipitation32%

Record high78° (1963)

Record low26° (1962)

Tue, 2756° / 44°

0.09

56 °

Holbrook, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°

Average low44°

Average precipitation0.09 in

Chance of precipitation37%

Record high73° (2014)

Record low31° (1962)

Wed, 2856° / 43°

0.06

56 °

Holbrook, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.06 in

Chance of precipitation22%

Record high73° (1999)

Record low29° (1976)

Thu, 2956° / 43°

0.06

56 °

Holbrook, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high56°

Average low43°

Average precipitation0.06 in

Chance of precipitation20%

Record high79° (2024)

Record low30° (1980)

Fri, 3057° / 44°

0.12

57 °

Holbrook, Friday, 30 October

Climate normal for this date — 60-year average.

Average high57°

Average low44°

Average precipitation0.12 in

Chance of precipitation30%

Record high78° (2024)

Record low29° (1988)

Sat, 3156° / 44°

0.15

56 °

Holbrook, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°

Average low44°

Average precipitation0.15 in

Chance of precipitation40%

Record high73° (1974)

Record low27° (2023)

Sun, 0155° / 43°

0.18

55 °

Holbrook, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°

Average low43°

Average precipitation0.18 in

Chance of precipitation43%

Record high73° (2016)

Record low23° (2019)

Mon, 0254° / 42°

0.12

54 °

Holbrook, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°

Average low42°

Average precipitation0.12 in

Chance of precipitation40%

Record high73° (1961)

Record low25° (1991)

Tue, 0353° / 41°

0.07

53 °

Holbrook, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high53°

Average low41°

Average precipitation0.07 in

Chance of precipitation25%

Record high72° (1987)

Record low19° (1991)

Wed, 0453° / 42°

0.09

53 °

Holbrook, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high53°

Average low42°

Average precipitation0.09 in

Chance of precipitation27%

Record high71° (2015)

Record low18° (1991)

Thu, 0553° / 41°

0.13

53 °

Holbrook, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°

Average low41°

Average precipitation0.13 in

Chance of precipitation32%

Record high74° (1978)

Record low20° (1991)

Fri, 0653° / 39°

0.07

53 °

Holbrook, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°

Average low39°

Average precipitation0.07 in

Chance of precipitation30%

Record high72° (1975)

Record low25° (1991)

Sat, 0751° / 39°

0.06

51 °

Holbrook, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.06 in

Chance of precipitation20%

Record high70° (2020)

Record low22° (1991)

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 Holbrook, 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 Holbrook, 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.