As of 08:42 CDT

Weather in Darien, IL

55°Current weather

Darien, Thursday, 8 October, 08:42

Partly cloudy. Feels like 54°. High 71°, low 50°.

Pressure30.06 inHg
Wind4.6 mph W
Humidity76%
Visibility6.2 mi
Dew point48°

Monthly outlook for Darien, IL: average high 67.9°, average low 52.9°. That is 3.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.3 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 15 October (88°), the coolest 23 October (44.4°).

67.9°/52.9°
Average high / low
+3.5°
Above normal
6 / 5
Wet days / normal
1.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
8 October – 17 October70.6°62.8°+4.4°
18 October – 27 October63.2°58.3°+2.7°
28 October – 6 Novemberat normal54.5°—

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).

Fri, 0972° / 49°0.11Rain
72 °Rain

Darien, Friday, 9 October

Rain. High 72°, low 49°.

Pressure30.15 inHg
Wind5.3 mph SE
Humidity61%
Visibility6.2 mi
Dew point51°
Sat, 1075° / 58°0Overcast
75 °Overcast

Darien, Saturday, 10 October

Overcast. High 75°, low 58°.

Pressure30.12 inHg
Wind6.5 mph S
Humidity61%
Visibility6.2 mi
Dew point56°
Sun, 1170° / 56°0Clear
70 °Clear

Darien, Sunday, 11 October

Clear. High 70°, low 56°.

Pressure29.97 inHg
Wind4.4 mph E
Humidity71%
Visibility6.2 mi
Dew point58°
Mon, 1280° / 56°0.02Light rain
80 °Light rain

Darien, Monday, 12 October

Light rain. High 80°, low 56°.

Pressure29.83 inHg
Wind9.3 mph SW
Humidity59%
Visibility—
Dew point60°
Tue, 1368° / 58°0.09Light rain
68 °Light rain

Darien, Tuesday, 13 October

Light rain. High 68°, low 58°.

Pressure29.88 inHg
Wind8.3 mph NE
Humidity79%
Visibility—
Dew point60°
Wed, 1457° / 53°0.28Rain
57 °Rain

Darien, Wednesday, 14 October

Rain. High 57°, low 53°.

Pressure30.06 inHg
Wind9.2 mph E
Humidity56%
Visibility—
Dew point41°
Thu, 1588° / 62°0.3Rain
88 °Rain

Darien, Thursday, 15 October

Rain. High 88°, low 62°.

Pressure29.85 inHg
Wind12.6 mph SW
Humidity53%
Visibility—
Dew point64°
Fri, 1671° / 54°0.17Rain
71 °Rain

Darien, Friday, 16 October

Rain. High 71°, low 54°.

Pressure30.24 inHg
Wind13 mph NW
Humidity53%
Visibility—
Dew point44°
Sat, 1754° / 49°0Overcast
54 °Overcast

Darien, Saturday, 17 October

Overcast. High 54°, low 49°.

Pressure30.62 inHg
Wind11.2 mph NE
Humidity50%
Visibility—
Dew point35°
Sun, 1858° / 45°0Overcast
58 °Overcast

Darien, Sunday, 18 October

Overcast. High 58°, low 45°.

Pressure30.47 inHg
Wind5.4 mph SE
Humidity34%
Visibility—
Dew point27°
Mon, 1967° / 50°0.01Light rain
67 °Light rain

Darien, Monday, 19 October

Light rain. High 67°, low 50°.

Pressure30.18 inHg
Wind11.6 mph S
Humidity56%
Visibility—
Dew point44°
Tue, 2071° / 57°0.01Light rain
71 °Light rain

Darien, Tuesday, 20 October

Light rain. High 71°, low 57°.

Pressure30.12 inHg
Wind10 mph W
Humidity42%
Visibility—
Dew point44°
Wed, 2167° / 54°0Clear
67 °Clear

Darien, Wednesday, 21 October

Clear. High 67°, low 54°.

Pressure30.06 inHg
Wind9.4 mph W
Humidity36%
Visibility—
Dew point37°
Thu, 2260° / 51°0.27Light rain
60 °Light rain

Darien, Thursday, 22 October

Light rain. High 60°, low 51°.

Pressure29.80 inHg
Wind16.7 mph W
Humidity92%
Visibility—
Dew point57°
Fri, 2356° / 44°0Clear
56 °Clear

Darien, Friday, 23 October

Clear. High 56°, low 44°.

Pressure30.15 inHg
Wind14.5 mph W
Humidity44%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 0653° / 38°0.07Climate normal
53 °Climate normal

Darien, Friday, 6 November

Climate normal for this date — 60-year average.

Average high53°
Average low38°
Average precipitation0.07 in
Chance of precipitation30%
Record high72° (1975)
Record low24° (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.