As of 00:49 CST

Weather in Lemont, IL

57°

Lemont, Monday, 2 November, 00:49

Partly cloudy. Feels like 56°. High 65°, low 57°.

Pressure30.21 inHg

Wind11 mph S

Humidity82%

Visibility6.2 mi

Dew point52°

See detailed hourly forecast

Monthly outlook for Lemont, IL: average high 61°, average low 49.9°. That is 6° above the climate normal for November. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 1.4 inches. The warmest day looks like 3 November (72.3°), the coolest 13 November (40.8°).

61°/49.9°

Average high / low

+6°

Above normal

3 / 5

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
2 November – 11 November	59.8°	52°	+4.3°
12 November – 21 November	63.1°	47.1°	+8.9°
22 November – 1 December	at normal	42.7°	—

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).

Tue, 0372° / 63°

0.07

72 °

Lemont, Tuesday, 3 November

Light rain. High 72°, low 63°.

Pressure29.85 inHg

Wind9.2 mph S

Humidity78%

Visibility6.2 mi

Dew point63°

Wed, 0466° / 55°

0.16

66 °

Lemont, Wednesday, 4 November

Rain. High 66°, low 55°.

Pressure29.71 inHg

Wind15.5 mph SW

Humidity66%

Visibility6.2 mi

Dew point49°

Thu, 0558° / 50°

58 °

Lemont, Thursday, 5 November

Mostly clear. High 58°, low 50°.

Pressure29.77 inHg

Wind10.4 mph SW

Humidity56%

Visibility6.2 mi

Dew point41°

Fri, 0654° / 46°

0.11

54 °

Lemont, Friday, 6 November

Light rain. High 54°, low 46°.

Pressure29.88 inHg

Wind9.5 mph N

Humidity79%

Visibility—

Dew point47°

Sat, 0754° / 47°

54 °

Lemont, Saturday, 7 November

Overcast. High 54°, low 47°.

Pressure30.03 inHg

Wind9.5 mph N

Humidity66%

Visibility—

Dew point41°

Sun, 0856° / 45°

56 °

Lemont, Sunday, 8 November

Clear. High 56°, low 45°.

Pressure30.15 inHg

Wind7.6 mph W

Humidity56%

Visibility—

Dew point38°

Mon, 0958° / 44°

58 °

Lemont, Monday, 9 November

Clear. High 58°, low 44°.

Pressure30.03 inHg

Wind7.4 mph W

Humidity53%

Visibility—

Dew point38°

Tue, 1059° / 46°

59 °

Lemont, Tuesday, 10 November

Clear. High 59°, low 46°.

Pressure30.03 inHg

Wind6.8 mph W

Humidity55%

Visibility—

Dew point40°

Wed, 1155° / 45°

55 °

Lemont, Wednesday, 11 November

Mostly clear. High 55°, low 45°.

Pressure30.15 inHg

Wind7.5 mph NE

Humidity45%

Visibility—

Dew point33°

Thu, 1252° / 43°

52 °

Lemont, Thursday, 12 November

Overcast. High 52°, low 43°.

Pressure30.27 inHg

Wind5.5 mph NW

Humidity47%

Visibility—

Dew point31°

Fri, 1357° / 41°

57 °

Lemont, Friday, 13 November

Clear. High 57°, low 41°.

Pressure30.27 inHg

Wind11.3 mph SW

Humidity43%

Visibility—

Dew point31°

Sat, 1464° / 48°

64 °

Lemont, Saturday, 14 November

Mostly clear. High 64°, low 48°.

Pressure30.06 inHg

Wind16.3 mph SW

Humidity47%

Visibility—

Dew point40°

Sun, 1567° / 55°

67 °

Lemont, Sunday, 15 November

Partly cloudy. High 67°, low 55°.

Pressure30.06 inHg

Wind13.5 mph SW

Humidity66%

Visibility—

Dew point52°

Mon, 1670° / 55°

70 °

Lemont, Monday, 16 November

Clear. High 70°, low 55°.

Pressure30.06 inHg

Wind10.2 mph SW

Humidity69%

Visibility—

Dew point56°

Tue, 1769° / 57°

69 °

Lemont, Tuesday, 17 November

Mostly clear. High 69°, low 57°.

Pressure30.00 inHg

Wind15.4 mph S

Humidity63%

Visibility—

Dew point54°

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

Wed, 1848° / 36°

0.14

48 °

Lemont, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high48°

Average low36°

Average precipitation0.14 in

Chance of precipitation28%

Record high67° (2016)

Record low11° (2014)

Thu, 1947° / 35°

0.08

47 °

Lemont, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high47°

Average low35°

Average precipitation0.08 in

Chance of precipitation32%

Record high65° (1985)

Record low18° (2014)

Fri, 2046° / 34°

0.1

46 °

Lemont, Friday, 20 November

Climate normal for this date — 60-year average.

Average high46°

Average low34°

Average precipitation0.1 in

Chance of precipitation27%

Record high63° (2003)

Record low14° (2022)

Sat, 2145° / 33°

0.11

45 °

Lemont, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high45°

Average low33°

Average precipitation0.11 in

Chance of precipitation30%

Record high67° (1990)

Record low10° (1964)

Sun, 2245° / 31°

0.05

45 °

Lemont, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high45°

Average low31°

Average precipitation0.05 in

Chance of precipitation22%

Record high68° (2010)

Record low8° (2015)

Mon, 2345° / 32°

0.09

45 °

Lemont, Monday, 23 November

Climate normal for this date — 60-year average.

Average high45°

Average low32°

Average precipitation0.09 in

Chance of precipitation28%

Record high64° (2003)

Record low13° (1970)

Tue, 2443° / 31°

0.08

43 °

Lemont, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high43°

Average low31°

Average precipitation0.08 in

Chance of precipitation33%

Record high66° (1966)

Record low14° (1970)

Wed, 2544° / 32°

0.08

44 °

Lemont, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high44°

Average low32°

Average precipitation0.08 in

Chance of precipitation38%

Record high60° (1966)

Record low16° (1977)

Thu, 2644° / 31°

0.11

44 °

Lemont, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high44°

Average low31°

Average precipitation0.11 in

Chance of precipitation40%

Record high63° (1990)

Record low5° (1977)

Fri, 2743° / 32°

0.22

43 °

Lemont, Friday, 27 November

Climate normal for this date — 60-year average.

Average high43°

Average low32°

Average precipitation0.22 in

Chance of precipitation47%

Record high66° (1990)

Record low15° (1977)

Sat, 2841° / 29°

0.13

41 °

Lemont, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.13 in

Chance of precipitation27%

Record high64° (1990)

Record low5° (2018)

Sun, 2941° / 29°

0.07

41 °

Lemont, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high41°

Average low29°

Average precipitation0.07 in

Chance of precipitation33%

Record high65° (1998)

Record low8° (1976)

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)

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.