As of 16:38 CDT

Weather in Carol Stream, IL

67°

Carol Stream, Tuesday, 27 October, 16:38

Clear. Feels like 67°. High 67°, low 50°.

Pressure30.18 inHg

Wind6.9 mph S

Humidity65%

Visibility6.2 mi

Dew point55°

See detailed hourly forecast

Monthly outlook for Carol Stream, IL: average high 58.9°, average low 49.1°. That is 3.4° above the climate normal for October. Precipitation is expected on 5 days (about 1.6 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 28 October (72.9°), the coolest 9 November (39.7°).

58.9°/49.1°

Average high / low

+3.4°

Above normal

5 / 5

Wet days / normal

1.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
27 October – 5 November	62.9°	54.3°	+4.8°
6 November – 15 November	52.3°	48.8°	+1.9°
16 November – 25 November	at normal	45°	—

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).

Wed, 2873° / 56°

73 °

Carol Stream, Wednesday, 28 October

Clear. High 73°, low 56°.

Pressure30.18 inHg

Wind7.1 mph S

Humidity66%

Visibility6.2 mi

Dew point54°

Thu, 2965° / 50°

0.02

65 °

Carol Stream, Thursday, 29 October

Light rain. High 65°, low 50°.

Pressure30.09 inHg

Wind6.1 mph SW

Humidity79%

Visibility6.2 mi

Dew point56°

Fri, 3063° / 44°

63 °

Carol Stream, Friday, 30 October

Overcast. High 63°, low 44°.

Pressure30.33 inHg

Wind3.3 mph SE

Humidity66%

Visibility6.2 mi

Dew point49°

Sat, 3157° / 52°

0.49

57 °

Carol Stream, Saturday, 31 October

Rain. High 57°, low 52°.

Pressure30.27 inHg

Wind3.5 mph SE

Humidity89%

Visibility6.2 mi

Dew point51°

Sun, 0164° / 55°

64 °

Carol Stream, Sunday, 1 November

Light rain. High 64°, low 55°.

Pressure30.24 inHg

Wind5.7 mph NE

Humidity80%

Visibility—

Dew point56°

Mon, 0260° / 53°

60 °

Carol Stream, Monday, 2 November

Light rain. High 60°, low 53°.

Pressure29.91 inHg

Wind7.5 mph E

Humidity89%

Visibility—

Dew point55°

Tue, 0360° / 56°

0.38

60 °

Carol Stream, Tuesday, 3 November

Rain. High 60°, low 56°.

Pressure29.83 inHg

Wind15.1 mph E

Humidity95%

Visibility—

Dew point56°

Wed, 0462° / 59°

0.57

62 °

Carol Stream, Wednesday, 4 November

Rain. High 62°, low 59°.

Pressure29.74 inHg

Wind13.7 mph E

Humidity92%

Visibility—

Dew point59°

Thu, 0559° / 53°

0.07

59 °

Carol Stream, Thursday, 5 November

Light rain. High 59°, low 53°.

Pressure29.56 inHg

Wind6.6 mph S

Humidity67%

Visibility—

Dew point46°

Fri, 0654° / 49°

0.1

54 °

Carol Stream, Friday, 6 November

Light rain. High 54°, low 49°.

Pressure29.80 inHg

Wind15.4 mph N

Humidity85%

Visibility—

Dew point48°

Sat, 0751° / 43°

51 °

Carol Stream, Saturday, 7 November

Light rain. High 51°, low 43°.

Pressure30.21 inHg

Wind13.1 mph NE

Humidity51%

Visibility—

Dew point33°

Sun, 0851° / 41°

51 °

Carol Stream, Sunday, 8 November

Clear. High 51°, low 41°.

Pressure30.33 inHg

Wind8.3 mph E

Humidity43%

Visibility—

Dew point28°

Mon, 0952° / 40°

52 °

Carol Stream, Monday, 9 November

Clear. High 52°, low 40°.

Pressure30.27 inHg

Wind9.5 mph NE

Humidity35%

Visibility—

Dew point23°

Tue, 1053° / 42°

53 °

Carol Stream, Tuesday, 10 November

Overcast. High 53°, low 42°.

Pressure30.30 inHg

Wind8.3 mph NE

Humidity39%

Visibility—

Dew point27°

Wed, 1153° / 43°

53 °

Carol Stream, Wednesday, 11 November

Overcast. High 53°, low 43°.

Pressure30.06 inHg

Wind5.8 mph SW

Humidity40%

Visibility—

Dew point28°

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

Thu, 1246° / 33°

0.06

46 °

Carol Stream, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°

Average low33°

Average precipitation0.06 in

Chance of precipitation22%

Record high66° (1964)

Record low2° (2019)

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)

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.