As of 08:00 EDT

Weather in Lemont, PA

30°Current weather

Lemont, Sunday, 18 October, 08:00

Clear. Feels like 30°. High 59°, low 30°.

Pressure30.56 inHg
Wind1 mph SW
Humidity90%
Visibility6.2 mi
Dew point28°

Monthly outlook for Lemont, PA: average high 61.2°, average low 42.2°. That is 2.8° above the climate normal for October. Precipitation is expected on 3 days (about 0.6 inches), against a normal of 5 days and 1.8 inches. The warmest day looks like 1 November (71.4°), the coolest 18 October (29.6°).

61.2°/42.2°
Average high / low
+2.8°
Above normal
3 / 5
Wet days / normal
0.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
18 October – 27 October59.1°57°+1.2°
28 October – 6 November64.6°54°+5.9°
7 November – 16 Novemberat normal48.9°—

October records over 66 years

85.8°8 October 2007All-time high
19.6°30 October 2011All-time low

Climate normals and records are computed from the nearest reference point — State College (3 mi).

Mon, 1966° / 38°0Clear
66 °Clear

Lemont, Monday, 19 October

Clear. High 66°, low 38°.

Pressure30.42 inHg
Wind2.6 mph N
Humidity36%
Visibility6.2 mi
Dew point34°
Tue, 2065° / 41°0Clear
65 °Clear

Lemont, Tuesday, 20 October

Clear. High 65°, low 41°.

Pressure30.33 inHg
Wind8 mph N
Humidity55%
Visibility6.2 mi
Dew point44°
Wed, 2160° / 38°0Clear
60 °Clear

Lemont, Wednesday, 21 October

Clear. High 60°, low 38°.

Pressure30.33 inHg
Wind4.2 mph NE
Humidity50%
Visibility6.2 mi
Dew point36°
Thu, 2263° / 35°0Clear
63 °Clear

Lemont, Thursday, 22 October

Clear. High 63°, low 35°.

Pressure30.18 inHg
Wind9.8 mph NW
Humidity59%
Visibility—
Dew point38°
Fri, 2352° / 37°0Clear
52 °Clear

Lemont, Friday, 23 October

Clear. High 52°, low 37°.

Pressure30.39 inHg
Wind8.1 mph N
Humidity58%
Visibility—
Dew point32°
Sat, 2456° / 36°0Clear
56 °Clear

Lemont, Saturday, 24 October

Clear. High 56°, low 36°.

Pressure30.59 inHg
Wind8.7 mph S
Humidity53%
Visibility—
Dew point32°
Sun, 2558° / 40°0Overcast
58 °Overcast

Lemont, Sunday, 25 October

Overcast. High 58°, low 40°.

Pressure30.42 inHg
Wind7.7 mph S
Humidity72%
Visibility—
Dew point40°
Mon, 2654° / 39°0Clear
54 °Clear

Lemont, Monday, 26 October

Clear. High 54°, low 39°.

Pressure30.36 inHg
Wind8.9 mph NW
Humidity57%
Visibility—
Dew point34°
Tue, 2758° / 37°0Overcast
58 °Overcast

Lemont, Tuesday, 27 October

Overcast. High 58°, low 37°.

Pressure30.27 inHg
Wind10.2 mph W
Humidity48%
Visibility—
Dew point30°
Wed, 2858° / 42°0Overcast
58 °Overcast

Lemont, Wednesday, 28 October

Overcast. High 58°, low 42°.

Pressure30.30 inHg
Wind5 mph S
Humidity77%
Visibility—
Dew point42°
Thu, 2954° / 50°0.47Rain
54 °Rain

Lemont, Thursday, 29 October

Rain. High 54°, low 50°.

Pressure30.03 inHg
Wind3.4 mph SE
Humidity96%
Visibility—
Dew point51°
Fri, 3063° / 52°0.09Light rain
63 °Light rain

Lemont, Friday, 30 October

Light rain. High 63°, low 52°.

Pressure29.85 inHg
Wind7.2 mph W
Humidity96%
Visibility—
Dew point56°
Sat, 3170° / 52°0.01Light rain
70 °Light rain

Lemont, Saturday, 31 October

Light rain. High 70°, low 52°.

Pressure30.00 inHg
Wind8.9 mph SW
Humidity91%
Visibility—
Dew point55°
Sun, 0171° / 55°0.06Light rain
71 °Light rain

Lemont, Sunday, 1 November

Light rain. High 71°, low 55°.

Pressure30.00 inHg
Wind13.2 mph W
Humidity87%
Visibility—
Dew point60°
Mon, 0271° / 55°0Overcast
71 °Overcast

Lemont, Monday, 2 November

Overcast. High 71°, low 55°.

Pressure30.06 inHg
Wind13.8 mph NW
Humidity79%
Visibility—
Dew point60°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0355° / 38°0.06Climate normal
55 °Climate normal

Lemont, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high55°
Average low38°
Average precipitation0.06 in
Chance of precipitation32%
Record high72° (2003)
Record low22° (2002)
Wed, 0452° / 38°0.09Climate normal
52 °Climate normal

Lemont, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (2003)
Record low24° (2006)
Thu, 0552° / 38°0.1Climate normal
52 °Climate normal

Lemont, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high71° (2022)
Record low20° (1991)
Fri, 0652° / 38°0.06Climate normal
52 °Climate normal

Lemont, Friday, 6 November

Climate normal for this date — 60-year average.

Average high52°
Average low38°
Average precipitation0.06 in
Chance of precipitation28%
Record high75° (2022)
Record low25° (1995)
Sat, 0751° / 37°0.09Climate normal
51 °Climate normal

Lemont, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation33%
Record high67° (1975)
Record low25° (1967)
Sun, 0851° / 36°0.13Climate normal
51 °Climate normal

Lemont, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.13 in
Chance of precipitation27%
Record high70° (2020)
Record low23° (1967)
Mon, 0951° / 36°0.1Climate normal
51 °Climate normal

Lemont, Monday, 9 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2020)
Record low21° (2019)
Tue, 1051° / 36°0.15Climate normal
51 °Climate normal

Lemont, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high51°
Average low36°
Average precipitation0.15 in
Chance of precipitation38%
Record high70° (2020)
Record low19° (2017)
Wed, 1149° / 36°0.14Climate normal
49 °Climate normal

Lemont, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high49°
Average low36°
Average precipitation0.14 in
Chance of precipitation30%
Record high67° (1964)
Record low17° (2017)
Thu, 1248° / 34°0.18Climate normal
48 °Climate normal

Lemont, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.18 in
Chance of precipitation35%
Record high67° (1964)
Record low20° (2019)
Fri, 1347° / 33°0.06Climate normal
47 °Climate normal

Lemont, Friday, 13 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.06 in
Chance of precipitation27%
Record high64° (1964)
Record low18° (2019)
Sat, 1447° / 33°0.09Climate normal
47 °Climate normal

Lemont, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.09 in
Chance of precipitation27%
Record high65° (1989)
Record low17° (1986)
Sun, 1548° / 33°0.13Climate normal
48 °Climate normal

Lemont, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high48°
Average low33°
Average precipitation0.13 in
Chance of precipitation42%
Record high67° (1973)
Record low20° (1996)
Mon, 1647° / 33°0.14Climate normal
47 °Climate normal

Lemont, Monday, 16 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.14 in
Chance of precipitation32%
Record high64° (1990)
Record low17° (1967)

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, PA 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, PA 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.