As of 21:58 CDT

Weather in Carol Stream, IL

67°

Carol Stream, Wednesday, 28 October, 21:58

Overcast. Feels like 66°. High 75°, low 52°.

Pressure30.09 inHg

Wind9.2 mph S

Humidity59%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Carol Stream, IL: average high 57.3°, average low 47.6°. That is 2.9° above the climate normal for October. Precipitation is expected on 7 days (about 4.5 inches), against a normal of 4 days and 1.4 inches. The warmest day looks like 28 October (75.1°), the coolest 11 November (36.7°).

57.3°/47.6°

Average high / low

+2.9°

Above normal

7 / 4

Wet days / normal

4.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
28 October – 6 November	63.2°	53.9°	+5.2°
7 November – 16 November	47.5°	48.3°	-0.4°
17 November – 26 November	at normal	44.7°	—

October records over 66 years

87.4°3 October 2025All-time high

22.5°24 October 1981All-time low

Climate normals and records are computed from the nearest reference point — Glendale Heights (3 mi).

Thu, 2969° / 53°

69 °

Carol Stream, Thursday, 29 October

Light rain. High 69°, low 53°.

Pressure30.12 inHg

Wind5.8 mph W

Humidity82%

Visibility6.2 mi

Dew point57°

Fri, 3063° / 49°

0.01

63 °

Carol Stream, Friday, 30 October

Light rain. High 63°, low 49°.

Pressure30.36 inHg

Wind5.5 mph E

Humidity68%

Visibility6.2 mi

Dew point48°

Sat, 3153° / 50°

1.04

53 °

Carol Stream, Saturday, 31 October

Rain. High 53°, low 50°.

Pressure30.36 inHg

Wind4.9 mph SE

Humidity96%

Visibility3.6 mi

Dew point51°

Sun, 0164° / 47°

64 °

Carol Stream, Sunday, 1 November

Overcast. High 64°, low 47°.

Pressure30.30 inHg

Wind4.7 mph E

Humidity75%

Visibility6.2 mi

Dew point52°

Mon, 0261° / 55°

0.09

61 °

Carol Stream, Monday, 2 November

Light rain. High 61°, low 55°.

Pressure30.03 inHg

Wind17.3 mph S

Humidity82%

Visibility—

Dew point54°

Tue, 0363° / 59°

1.75

63 °

Carol Stream, Tuesday, 3 November

Heavy rain. High 63°, low 59°.

Pressure29.94 inHg

Wind18 mph S

Humidity77%

Visibility—

Dew point54°

Wed, 0462° / 61°

0.39

62 °

Carol Stream, Wednesday, 4 November

Rain. High 62°, low 61°.

Pressure29.80 inHg

Wind11 mph E

Humidity93%

Visibility—

Dew point60°

Thu, 0565° / 58°

0.47

65 °

Carol Stream, Thursday, 5 November

Rain. High 65°, low 58°.

Pressure29.56 inHg

Wind10.8 mph S

Humidity80%

Visibility—

Dew point57°

Fri, 0657° / 43°

0.04

57 °

Carol Stream, Friday, 6 November

Light rain. High 57°, low 43°.

Pressure29.85 inHg

Wind16.2 mph N

Humidity84%

Visibility—

Dew point42°

Sat, 0751° / 41°

51 °

Carol Stream, Saturday, 7 November

Overcast. High 51°, low 41°.

Pressure30.24 inHg

Wind12.2 mph N

Humidity53%

Visibility—

Dew point33°

Sun, 0851° / 40°

51 °

Carol Stream, Sunday, 8 November

Overcast. High 51°, low 40°.

Pressure30.21 inHg

Wind5.8 mph N

Humidity56%

Visibility—

Dew point34°

Mon, 0949° / 41°

0.24

49 °

Carol Stream, Monday, 9 November

Rain. High 49°, low 41°.

Pressure29.97 inHg

Wind7.7 mph S

Humidity66%

Visibility—

Dew point36°

Tue, 1045° / 38°

0.44

45 °

Carol Stream, Tuesday, 10 November

Rain. High 45°, low 38°.

Pressure29.62 inHg

Wind17.5 mph NW

Humidity95%

Visibility—

Dew point38°

Wed, 1146° / 37°

0.03

46 °

Carol Stream, Wednesday, 11 November

Light rain. High 46°, low 37°.

Pressure29.68 inHg

Wind13.5 mph W

Humidity61%

Visibility—

Dew point32°

Thu, 1243° / 38°

43 °

Carol Stream, Thursday, 12 November

Light rain. High 43°, low 38°.

Pressure29.83 inHg

Wind12.2 mph W

Humidity91%

Visibility—

Dew point38°

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

Fri, 1346° / 33°

0.04

46 °

Carol Stream, Friday, 13 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.04 in

Chance of precipitation17%

Record high69° (1999)

Record low3° (2019)

Sat, 1447° / 33°

0.07

47 °

Carol Stream, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.07 in

Chance of precipitation30%

Record high69° (1971)

Record low13° (1986)

Sun, 1547° / 34°

0.09

47 °

Carol Stream, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.09 in

Chance of precipitation28%

Record high69° (2025)

Record low19° (1982)

Mon, 1647° / 33°

0.05

47 °

Carol Stream, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°

Average low33°

Average precipitation0.05 in

Chance of precipitation18%

Record high63° (1988)

Record low20° (1997)

Tue, 1747° / 34°

0.08

47 °

Carol Stream, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.08 in

Chance of precipitation30%

Record high70° (2016)

Record low15° (2014)

Wed, 1847° / 35°

0.11

47 °

Carol Stream, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.11 in

Chance of precipitation28%

Record high67° (1999)

Record low11° (2014)

Thu, 1947° / 34°

0.07

47 °

Carol Stream, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°

Average low34°

Average precipitation0.07 in

Chance of precipitation30%

Record high65° (1983)

Record low17° (2014)

Fri, 2045° / 33°

0.08

45 °

Carol Stream, Friday, 20 November

Climate normal for this date — 60-year average.

Average high45°

Average low33°

Average precipitation0.08 in

Chance of precipitation28%

Record high63° (2003)

Record low14° (2022)

Sat, 2144° / 31°

0.1

44 °

Carol Stream, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.1 in

Chance of precipitation25%

Record high66° (1990)

Record low9° (1964)

Sun, 2244° / 30°

0.04

44 °

Carol Stream, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high44°

Average low30°

Average precipitation0.04 in

Chance of precipitation20%

Record high67° (2010)

Record low4° (2015)

Mon, 2344° / 31°

0.07

44 °

Carol Stream, Monday, 23 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.07 in

Chance of precipitation27%

Record high65° (2003)

Record low12° (1970)

Tue, 2442° / 30°

0.07

42 °

Carol Stream, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high42°

Average low30°

Average precipitation0.07 in

Chance of precipitation28%

Record high66° (1966)

Record low13° (1970)

Wed, 2543° / 31°

0.08

43 °

Carol Stream, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.08 in

Chance of precipitation33%

Record high60° (1966)

Record low14° (1977)

Thu, 2643° / 30°

0.11

43 °

Carol Stream, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high43°

Average low30°

Average precipitation0.11 in

Chance of precipitation42%

Record high63° (1990)

Record low3° (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 Carol Stream, 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 Carol Stream, 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.