As of 21:03 CDT

Weather in Darien, IL

64°Current weather

Darien, Wednesday, 7 October, 21:03

Clear. Feels like 63°. High 77°, low 55°.

Pressure29.91 inHg
Wind5.7 mph W
Humidity54%
Visibility6.2 mi
Dew point47°

Monthly outlook for Darien, IL: average high 68.7°, average low 52.2°. That is 3.9° above the climate normal for October. Precipitation is expected on 3 days (about 0.5 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 15 October (86°), the coolest 22 October (44.2°).

68.7°/52.2°
Average high / low
+3.9°
Above normal
3 / 5
Wet days / normal
0.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
7 October – 16 October74.7°63.2°+6.4°
17 October – 26 October58.8°58.7°+0.1°
27 October – 5 Novemberat normal54.9°—

October records over 66 years

87.3°3 October 2025All-time high
24.8°26 October 1962All-time low

Climate normals and records are computed from the nearest reference point — La Grange (7 mi).

Thu, 0870° / 52°0Mostly clear
70 °Mostly clear

Darien, Thursday, 8 October

Mostly clear. High 70°, low 52°.

Pressure30.09 inHg
Wind6.2 mph NW
Humidity46%
Visibility6.2 mi
Dew point44°
Fri, 0977° / 51°0.1Rain
77 °Rain

Darien, Friday, 9 October

Rain. High 77°, low 51°.

Pressure30.12 inHg
Wind7.4 mph SE
Humidity53%
Visibility6.2 mi
Dew point51°
Sat, 1078° / 59°0Clear
78 °Clear

Darien, Saturday, 10 October

Clear. High 78°, low 59°.

Pressure30.12 inHg
Wind6 mph S
Humidity57%
Visibility6.2 mi
Dew point58°
Sun, 1168° / 59°0.07Light rain
68 °Light rain

Darien, Sunday, 11 October

Light rain. High 68°, low 59°.

Pressure30.00 inHg
Wind6 mph E
Humidity74%
Visibility6.2 mi
Dew point57°
Mon, 1280° / 55°0.01Light rain
80 °Light rain

Darien, Monday, 12 October

Light rain. High 80°, low 55°.

Pressure29.80 inHg
Wind9.5 mph S
Humidity63%
Visibility—
Dew point60°
Tue, 1370° / 53°0.01Light rain
70 °Light rain

Darien, Tuesday, 13 October

Light rain. High 70°, low 53°.

Pressure30.00 inHg
Wind12.5 mph NW
Humidity62%
Visibility—
Dew point46°
Wed, 1460° / 47°0Overcast
60 °Overcast

Darien, Wednesday, 14 October

Overcast. High 60°, low 47°.

Pressure30.09 inHg
Wind10.2 mph S
Humidity43%
Visibility—
Dew point34°
Thu, 1586° / 59°0.04Light rain
86 °Light rain

Darien, Thursday, 15 October

Light rain. High 86°, low 59°.

Pressure29.80 inHg
Wind17.4 mph S
Humidity58%
Visibility—
Dew point62°
Fri, 1680° / 64°0.29Rain
80 °Rain

Darien, Friday, 16 October

Rain. High 80°, low 64°.

Pressure29.88 inHg
Wind16 mph S
Humidity80%
Visibility—
Dew point66°
Sat, 1758° / 48°0Overcast
58 °Overcast

Darien, Saturday, 17 October

Overcast. High 58°, low 48°.

Pressure30.15 inHg
Wind12.5 mph W
Humidity52%
Visibility—
Dew point35°
Sun, 1852° / 48°0Overcast
52 °Overcast

Darien, Sunday, 18 October

Overcast. High 52°, low 48°.

Pressure30.27 inHg
Wind8.3 mph W
Humidity49%
Visibility—
Dew point33°
Mon, 1960° / 46°0Overcast
60 °Overcast

Darien, Monday, 19 October

Overcast. High 60°, low 46°.

Pressure30.27 inHg
Wind6.6 mph SW
Humidity43%
Visibility—
Dew point34°
Tue, 2063° / 48°0Clear
63 °Clear

Darien, Tuesday, 20 October

Clear. High 63°, low 48°.

Pressure30.12 inHg
Wind9.3 mph N
Humidity48%
Visibility—
Dew point41°
Wed, 2157° / 47°0Clear
57 °Clear

Darien, Wednesday, 21 October

Clear. High 57°, low 47°.

Pressure30.21 inHg
Wind7.6 mph N
Humidity41%
Visibility—
Dew point32°
Thu, 2264° / 44°0Overcast
64 °Overcast

Darien, Thursday, 22 October

Overcast. High 64°, low 44°.

Pressure29.77 inHg
Wind13.2 mph S
Humidity46%
Visibility—
Dew point38°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2359° / 45°0.12Climate normal
59 °Climate normal

Darien, Friday, 23 October

Climate normal for this date — 60-year average.

Average high59°
Average low45°
Average precipitation0.12 in
Chance of precipitation33%
Record high79° (1963)
Record low31° (1976)
Sat, 2458° / 45°0.11Climate normal
58 °Climate normal

Darien, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high58°
Average low45°
Average precipitation0.11 in
Chance of precipitation40%
Record high78° (1963)
Record low25° (1981)
Sun, 2557° / 44°0.13Climate normal
57 °Climate normal

Darien, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high57°
Average low44°
Average precipitation0.13 in
Chance of precipitation32%
Record high75° (1963)
Record low30° (1962)
Mon, 2656° / 44°0.11Climate normal
56 °Climate normal

Darien, Monday, 26 October

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.11 in
Chance of precipitation32%
Record high79° (1963)
Record low25° (1962)
Tue, 2756° / 43°0.1Climate normal
56 °Climate normal

Darien, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.1 in
Chance of precipitation37%
Record high75° (2014)
Record low29° (1980)
Wed, 2856° / 43°0.06Climate normal
56 °Climate normal

Darien, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high56°
Average low43°
Average precipitation0.06 in
Chance of precipitation20%
Record high74° (1999)
Record low27° (1976)
Thu, 2956° / 42°0.06Climate normal
56 °Climate normal

Darien, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high56°
Average low42°
Average precipitation0.06 in
Chance of precipitation20%
Record high78° (2024)
Record low28° (1980)
Fri, 3058° / 43°0.12Climate normal
58 °Climate normal

Darien, Friday, 30 October

Climate normal for this date — 60-year average.

Average high58°
Average low43°
Average precipitation0.12 in
Chance of precipitation28%
Record high77° (1971)
Record low27° (1988)
Sat, 3156° / 44°0.13Climate normal
56 °Climate normal

Darien, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high56°
Average low44°
Average precipitation0.13 in
Chance of precipitation42%
Record high74° (1974)
Record low27° (2023)
Sun, 0155° / 42°0.18Climate normal
55 °Climate normal

Darien, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high55°
Average low42°
Average precipitation0.18 in
Chance of precipitation42%
Record high74° (2016)
Record low20° (2019)
Mon, 0254° / 41°0.12Climate normal
54 °Climate normal

Darien, Monday, 2 November

Climate normal for this date — 60-year average.

Average high54°
Average low41°
Average precipitation0.12 in
Chance of precipitation40%
Record high74° (1961)
Record low24° (1991)
Tue, 0353° / 40°0.07Climate normal
53 °Climate normal

Darien, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.07 in
Chance of precipitation23%
Record high73° (1987)
Record low18° (1991)
Wed, 0453° / 42°0.09Climate normal
53 °Climate normal

Darien, 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 low17° (1991)
Thu, 0553° / 40°0.12Climate normal
53 °Climate normal

Darien, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high53°
Average low40°
Average precipitation0.12 in
Chance of precipitation32%
Record high75° (1978)
Record low19° (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 Darien, 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 Darien, 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.