As of 12:21 CDT

Weather in Westmont, IL

68°Current weather

Westmont, Wednesday, 21 October, 12:21

Clear. Feels like 66°. High 69°, low 41°.

Pressure30.24 inHg
Wind5 mph W
Humidity49%
Visibility6.2 mi
Dew point49°

Monthly outlook for Westmont, IL: average high 63.8°, average low 51.1°. That is 4.3° above the climate normal for October. Precipitation is expected on 7 days (about 3.8 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 22 October (71.9°), the coolest 21 October (41.3°).

63.8°/51.1°
Average high / low
+4.3°
Above normal
7 / 5
Wet days / normal
3.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October66.1°57.4°+4.8°
31 October – 9 November60°53.1°+3.8°
10 November – 19 Novemberat normal47.7°—

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 (5 mi).

Thu, 2272° / 45°0Clear
72 °Clear

Westmont, Thursday, 22 October

Clear. High 72°, low 45°.

Pressure30.27 inHg
Wind2 mph NE
Humidity67%
Visibility6.2 mi
Dew point55°
Fri, 2368° / 47°0Clear
68 °Clear

Westmont, Friday, 23 October

Clear. High 68°, low 47°.

Pressure30.36 inHg
Wind2.6 mph S
Humidity72%
Visibility6.2 mi
Dew point55°
Sat, 2466° / 49°0Partly cloudy
66 °Partly cloudy

Westmont, Saturday, 24 October

Partly cloudy. High 66°, low 49°.

Pressure30.39 inHg
Wind6.1 mph S
Humidity67%
Visibility6.2 mi
Dew point52°
Sun, 2567° / 50°0Overcast
67 °Overcast

Westmont, Sunday, 25 October

Overcast. High 67°, low 50°.

Pressure30.39 inHg
Wind5 mph S
Humidity64%
Visibility6.2 mi
Dew point51°
Mon, 2669° / 52°0Overcast
69 °Overcast

Westmont, Monday, 26 October

Overcast. High 69°, low 52°.

Pressure30.21 inHg
Wind7.2 mph S
Humidity60%
Visibility—
Dew point51°
Tue, 2762° / 53°0Overcast
62 °Overcast

Westmont, Tuesday, 27 October

Overcast. High 62°, low 53°.

Pressure30.33 inHg
Wind7.4 mph SE
Humidity48%
Visibility—
Dew point39°
Wed, 2869° / 56°0.01Light rain
69 °Light rain

Westmont, Wednesday, 28 October

Light rain. High 69°, low 56°.

Pressure30.06 inHg
Wind11.5 mph SW
Humidity53%
Visibility—
Dew point48°
Thu, 2963° / 50°0.05Light rain
63 °Light rain

Westmont, Thursday, 29 October

Light rain. High 63°, low 50°.

Pressure30.21 inHg
Wind10.2 mph SW
Humidity39%
Visibility—
Dew point31°
Fri, 3057° / 48°0Overcast
57 °Overcast

Westmont, Friday, 30 October

Overcast. High 57°, low 48°.

Pressure30.30 inHg
Wind8.6 mph E
Humidity27%
Visibility—
Dew point22°
Sat, 3162° / 51°0.15Light rain
62 °Light rain

Westmont, Saturday, 31 October

Light rain. High 62°, low 51°.

Pressure29.97 inHg
Wind13.4 mph S
Humidity64%
Visibility—
Dew point44°
Sun, 0160° / 57°1.24Rain
60 °Rain

Westmont, Sunday, 1 November

Rain. High 60°, low 57°.

Pressure29.88 inHg
Wind16.2 mph S
Humidity91%
Visibility—
Dew point55°
Mon, 0260° / 59°0.94Rain
60 °Rain

Westmont, Monday, 2 November

Rain. High 60°, low 59°.

Pressure29.83 inHg
Wind8.1 mph S
Humidity98%
Visibility—
Dew point60°
Tue, 0362° / 58°0.71Rain
62 °Rain

Westmont, Tuesday, 3 November

Rain. High 62°, low 58°.

Pressure29.71 inHg
Wind12 mph NE
Humidity94%
Visibility—
Dew point58°
Wed, 0464° / 54°0.47Light rain
64 °Light rain

Westmont, Wednesday, 4 November

Light rain. High 64°, low 54°.

Pressure29.41 inHg
Wind11.6 mph NE
Humidity62%
Visibility—
Dew point50°
Thu, 0552° / 49°0.19Light rain
52 °Light rain

Westmont, Thursday, 5 November

Light rain. High 52°, low 49°.

Pressure29.53 inHg
Wind11.1 mph S
Humidity88%
Visibility—
Dew point46°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0653° / 38°0.07Climate normal
53 °Climate normal

Westmont, 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)
Sat, 0752° / 38°0.06Climate normal
52 °Climate normal

Westmont, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation22%
Record high69° (2020)
Record low19° (1991)
Sun, 0851° / 38°0.07Climate normal
51 °Climate normal

Westmont, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low38°
Average precipitation0.07 in
Chance of precipitation20%
Record high74° (2020)
Record low15° (1991)
Mon, 0952° / 39°0.13Climate normal
52 °Climate normal

Westmont, Monday, 9 November

Climate normal for this date — 60-year average.

Average high52°
Average low39°
Average precipitation0.13 in
Chance of precipitation35%
Record high72° (1999)
Record low19° (1991)
Tue, 1050° / 38°0.13Climate normal
50 °Climate normal

Westmont, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high50°
Average low38°
Average precipitation0.13 in
Chance of precipitation40%
Record high72° (2020)
Record low17° (2017)
Wed, 1148° / 35°0.08Climate normal
48 °Climate normal

Westmont, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.08 in
Chance of precipitation30%
Record high70° (1964)
Record low16° (2019)
Thu, 1246° / 34°0.06Climate normal
46 °Climate normal

Westmont, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high46°
Average low34°
Average precipitation0.06 in
Chance of precipitation23%
Record high67° (1964)
Record low5° (2019)
Fri, 1347° / 34°0.06Climate normal
47 °Climate normal

Westmont, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low34°
Average precipitation0.06 in
Chance of precipitation20%
Record high69° (1999)
Record low2° (2019)
Sat, 1448° / 34°0.07Climate normal
48 °Climate normal

Westmont, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.07 in
Chance of precipitation33%
Record high69° (1971)
Record low14° (1986)
Sun, 1547° / 35°0.1Climate normal
47 °Climate normal

Westmont, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.1 in
Chance of precipitation32%
Record high68° (2025)
Record low20° (1982)
Mon, 1647° / 35°0.05Climate normal
47 °Climate normal

Westmont, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.05 in
Chance of precipitation25%
Record high63° (1988)
Record low21° (1997)
Tue, 1748° / 35°0.09Climate normal
48 °Climate normal

Westmont, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high48°
Average low35°
Average precipitation0.09 in
Chance of precipitation32%
Record high70° (2016)
Record low16° (2014)
Wed, 1848° / 36°0.15Climate normal
48 °Climate normal

Westmont, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation30%
Record high67° (2016)
Record low11° (2014)
Thu, 1947° / 35°0.08Climate normal
47 °Climate normal

Westmont, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°
Average low35°
Average precipitation0.08 in
Chance of precipitation35%
Record high65° (1985)
Record low18° (2014)

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 Westmont, 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 Westmont, 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.