As of 19:52 CST

Weather in Lemont, IL

36°

Lemont, Saturday, 14 November, 19:52

Clear. Feels like 32°. High 46°, low 30°.

Pressure30.30 inHg

Wind4.5 mph NW

Humidity78%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Lemont, IL: average high 49.4°, average low 35.8°. That is 2.4° above the climate normal for November. Precipitation is expected on 3 days (about 1.3 inches), against a normal of 5 days and 1.6 inches. The warmest day looks like 21 November (62.7°), the coolest 25 November (28.4°).

49.4°/35.8°

Average high / low

+2.4°

Above normal

3 / 5

Wet days / normal

1.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
14 November – 23 November	52.9°	46.7°	+3.4°
24 November – 3 December	43.7°	41.7°	+1.1°
4 December – 13 December	at normal	37°	—

November records over 66 years

75.2°5 November 1978All-time high

2.7°13 November 2019All-time low

Climate normals and records are computed from the nearest reference point — Orland Hills (9 mi).

Sun, 1552° / 32°

52 °

Lemont, Sunday, 15 November

Clear. High 52°, low 32°.

Pressure30.45 inHg

Wind1.8 mph NW

Humidity62%

Visibility6.2 mi

Dew point35°

Mon, 1652° / 33°

52 °

Lemont, Monday, 16 November

Clear. High 52°, low 33°.

Pressure30.53 inHg

Wind6.4 mph SW

Humidity61%

Visibility6.2 mi

Dew point36°

Tue, 1753° / 34°

53 °

Lemont, Tuesday, 17 November

Clear. High 53°, low 34°.

Pressure30.50 inHg

Wind6.8 mph SW

Humidity66%

Visibility6.2 mi

Dew point40°

Wed, 1855° / 39°

55 °

Lemont, Wednesday, 18 November

Overcast. High 55°, low 39°.

Pressure30.33 inHg

Wind11.1 mph S

Humidity63%

Visibility6.2 mi

Dew point41°

Thu, 1959° / 46°

59 °

Lemont, Thursday, 19 November

Mostly clear. High 59°, low 46°.

Pressure30.21 inHg

Wind11.2 mph SW

Humidity62%

Visibility—

Dew point44°

Fri, 2055° / 39°

55 °

Lemont, Friday, 20 November

Overcast. High 55°, low 39°.

Pressure30.27 inHg

Wind10.4 mph S

Humidity61%

Visibility—

Dew point39°

Sat, 2163° / 52°

63 °

Lemont, Saturday, 21 November

Overcast. High 63°, low 52°.

Pressure29.97 inHg

Wind16.2 mph S

Humidity53%

Visibility—

Dew point43°

Sun, 2256° / 33°

0.16

56 °

Lemont, Sunday, 22 November

Snow. High 56°, low 33°.

Pressure29.62 inHg

Wind21.8 mph NW

Humidity83%

Visibility—

Dew point40°

Mon, 2337° / 29°

37 °

Lemont, Monday, 23 November

Mostly clear. High 37°, low 29°.

Pressure30.39 inHg

Wind15.2 mph N

Humidity56%

Visibility—

Dew point22°

Tue, 2438° / 31°

38 °

Lemont, Tuesday, 24 November

Light snow. High 38°, low 31°.

Pressure30.59 inHg

Wind7.1 mph N

Humidity58%

Visibility—

Dew point23°

Wed, 2539° / 28°

39 °

Lemont, Wednesday, 25 November

Overcast. High 39°, low 28°.

Pressure30.47 inHg

Wind7.9 mph S

Humidity43%

Visibility—

Dew point16°

Thu, 2645° / 31°

45 °

Lemont, Thursday, 26 November

Overcast. High 45°, low 31°.

Pressure30.24 inHg

Wind8.6 mph SE

Humidity42%

Visibility—

Dew point20°

Fri, 2751° / 40°

0.63

51 °

Lemont, Friday, 27 November

Rain. High 51°, low 40°.

Pressure29.56 inHg

Wind19.5 mph E

Humidity78%

Visibility—

Dew point41°

Sat, 2851° / 37°

0.46

51 °

Lemont, Saturday, 28 November

Rain. High 51°, low 37°.

Pressure29.26 inHg

Wind17.8 mph W

Humidity90%

Visibility—

Dew point38°

Sun, 2939° / 37°

0.02

39 °

Lemont, Sunday, 29 November

Light snow. High 39°, low 37°.

Pressure29.94 inHg

Wind16.9 mph W

Humidity77%

Visibility—

Dew point31°

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

Mon, 3042° / 29°

0.09

42 °

Lemont, Monday, 30 November

Climate normal for this date — 60-year average.

Average high42°

Average low29°

Average precipitation0.09 in

Chance of precipitation32%

Record high64° (1998)

Record low12° (1964)

Tue, 0139° / 28°

0.15

39 °

Lemont, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.15 in

Chance of precipitation38%

Record high64° (1970)

Record low12° (2025)

Wed, 0240° / 28°

0.06

40 °

Lemont, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.06 in

Chance of precipitation30%

Record high68° (1982)

Record low10° (1976)

Thu, 0340° / 28°

0.1

40 °

Lemont, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high40°

Average low28°

Average precipitation0.1 in

Chance of precipitation33%

Record high68° (2012)

Record low8° (2006)

Fri, 0439° / 28°

0.07

39 °

Lemont, Friday, 4 December

Climate normal for this date — 60-year average.

Average high39°

Average low28°

Average precipitation0.07 in

Chance of precipitation27%

Record high65° (1998)

Record low-1° (1991)

Sat, 0539° / 26°

0.09

39 °

Lemont, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high39°

Average low26°

Average precipitation0.09 in

Chance of precipitation30%

Record high66° (2001)

Record low-2° (1991)

Sun, 0637° / 25°

0.06

37 °

Lemont, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high37°

Average low25°

Average precipitation0.06 in

Chance of precipitation23%

Record high62° (1998)

Record low2° (2007)

Mon, 0736° / 25°

0.13

36 °

Lemont, Monday, 7 December

Climate normal for this date — 60-year average.

Average high36°

Average low25°

Average precipitation0.13 in

Chance of precipitation28%

Record high57° (1980)

Record low-3° (1972)

Tue, 0837° / 26°

0.07

37 °

Lemont, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high37°

Average low26°

Average precipitation0.07 in

Chance of precipitation28%

Record high63° (1991)

Record low3° (2006)

Wed, 0937° / 24°

0.08

37 °

Lemont, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.08 in

Chance of precipitation38%

Record high55° (2023)

Record low-4° (1977)

Thu, 1036° / 24°

0.08

36 °

Lemont, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high36°

Average low24°

Average precipitation0.08 in

Chance of precipitation30%

Record high60° (1971)

Record low-6° (1978)

Fri, 1135° / 24°

0.11

35 °

Lemont, Friday, 11 December

Climate normal for this date — 60-year average.

Average high35°

Average low24°

Average precipitation0.11 in

Chance of precipitation30%

Record high59° (2021)

Record low-11° (1972)

Sat, 1237° / 24°

0.09

37 °

Lemont, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.09 in

Chance of precipitation32%

Record high63° (2015)

Record low-4° (2000)

Sun, 1337° / 24°

0.05

37 °

Lemont, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high37°

Average low24°

Average precipitation0.05 in

Chance of precipitation27%

Record high62° (2015)

Record low-8° (2000)

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 Lemont, 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 Lemont, 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.