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Weather data for Lemont Furnace is updated regularly with the latest available observations and forecasts.

Now · 5:59 AM

Lemont Furnace Weather & Hourly Forecast

United States · Pennsylvania · 15456

54°F

Clear night

Feels like: 54°F

💧 Humidity 95% 🌡 Pressure 30.12 inHg 💨 Wind 3 mph 👁 Visibility 2.0 mi ☁ Clouds 7% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Lemont Furnace

Today

6:00 AM

Clear night

54° 💧 None 💨 3 mph H 95%30.12 inHg

9:00 AM

Sunny

65° 💧 None 💨 4 mph H 79%30.18 inHg

12:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 55%30.18 inHg

3:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 51%30.15 inHg

6:00 PM

Sunny

74° 💧 None 💨 5 mph H 59%30.15 inHg

9:00 PM

Clear night

65° 💧 None 💨 4 mph H 85%30.18 inHg

Tomorrow

12:00 AM

Mostly clear night

62° 💧 None 💨 5 mph H 76%30.21 inHg

3:00 AM

Overcast night

60° 💧 None 💨 6 mph H 77%30.21 inHg

6:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 83%30.24 inHg

9:00 AM

Sunny

69° 💧 None 💨 5 mph H 69%30.27 inHg

12:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 57%30.27 inHg

3:00 PM

Mostly sunny

80° 💧 None 💨 6 mph H 54%30.21 inHg

6:00 PM

Mostly sunny

78° 💧 None 💨 4 mph H 55%30.18 inHg

9:00 PM

Overcast night

69° 💧 None 💨 4 mph H 80%30.21 inHg

Wednesday

12:00 AM

Fog at night

63° 💧 None 💨 4 mph H 89%30.21 inHg

3:00 AM

Clear night

63° 💧 None 💨 5 mph H 82%30.18 inHg

Today

6:00 AM

Clear night

54° 💧 None 💨 3 mph H 95%30.12 inHg

7:00 AM

Sunny

54° 💧 None 💨 4 mph H 96%30.15 inHg

8:00 AM

Sunny

58° 💧 None 💨 6 mph H 90%30.15 inHg

9:00 AM

Sunny

65° 💧 None 💨 4 mph H 79%30.18 inHg

10:00 AM

Sunny

69° 💧 None 💨 5 mph H 70%30.18 inHg

11:00 AM

Mostly sunny

71° 💧 None 💨 5 mph H 62%30.18 inHg

12:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 55%30.18 inHg

1:00 PM

Mostly sunny

74° 💧 None 💨 4 mph H 54%30.18 inHg

2:00 PM

Sunny

75° 💧 None 💨 4 mph H 52%30.15 inHg

3:00 PM

Mostly sunny

76° 💧 None 💨 4 mph H 51%30.15 inHg

4:00 PM

Mostly sunny

76° 💧 None 💨 3 mph H 51%30.15 inHg

5:00 PM

Sunny

76° 💧 None 💨 4 mph H 52%30.15 inHg

6:00 PM

Sunny

74° 💧 None 💨 5 mph H 59%30.15 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 4 mph H 72%30.15 inHg

8:00 PM

Clear night

67° 💧 None 💨 4 mph H 78%30.15 inHg

9:00 PM

Clear night

65° 💧 None 💨 4 mph H 85%30.18 inHg

10:00 PM

Clear night

63° 💧 None 💨 4 mph H 87%30.18 inHg

11:00 PM

Mostly clear night

62° 💧 None 💨 4 mph H 82%30.21 inHg

Tomorrow

12:00 AM

Mostly clear night

62° 💧 None 💨 5 mph H 76%30.21 inHg

1:00 AM

Mostly cloudy night

62° 💧 None 💨 6 mph H 71%30.21 inHg

2:00 AM

Overcast night

61° 💧 None 💨 6 mph H 73%30.21 inHg

3:00 AM

Overcast night

60° 💧 None 💨 6 mph H 77%30.21 inHg

4:00 AM

Mostly cloudy night

59° 💧 None 💨 5 mph H 81%30.21 inHg

5:00 AM

Mostly cloudy night

58° 💧 None 💨 5 mph H 84%30.21 inHg

6:00 AM

Partly cloudy night

58° 💧 None 💨 5 mph H 83%30.24 inHg

7:00 AM

Sunny

59° 💧 None 💨 5 mph H 79%30.24 inHg

8:00 AM

Sunny

64° 💧 None 💨 6 mph H 73%30.27 inHg

9:00 AM

Sunny

69° 💧 None 💨 5 mph H 69%30.27 inHg

10:00 AM

Sunny

72° 💧 None 💨 6 mph H 63%30.27 inHg

11:00 AM

Mostly sunny

74° 💧 None 💨 7 mph H 60%30.27 inHg

12:00 PM

Partly cloudy

76° 💧 None 💨 7 mph H 57%30.27 inHg

1:00 PM

Sunny

78° 💧 None 💨 7 mph H 55%30.24 inHg

2:00 PM

Sunny

79° 💧 None 💨 6 mph H 55%30.24 inHg

3:00 PM

Mostly sunny

80° 💧 None 💨 6 mph H 54%30.21 inHg

4:00 PM

Mostly sunny

80° 💧 None 💨 6 mph H 52%30.18 inHg

5:00 PM

Mostly sunny

80° 💧 None 💨 4 mph H 51%30.18 inHg

6:00 PM

Mostly sunny

78° 💧 None 💨 4 mph H 55%30.18 inHg

7:00 PM

Mostly sunny

75° 💧 None 💨 2 mph H 70%30.18 inHg

8:00 PM

Overcast night

71° 💧 None 💨 2 mph H 73%30.18 inHg

9:00 PM

Overcast night

69° 💧 None 💨 4 mph H 80%30.21 inHg

10:00 PM

Clear night

67° 💧 None 💨 4 mph H 84%30.21 inHg

11:00 PM

Fog at night

64° 💧 None 💨 4 mph H 89%30.21 inHg

Wednesday

12:00 AM

Fog at night

63° 💧 None 💨 4 mph H 89%30.21 inHg

1:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 88%30.18 inHg

2:00 AM

Mostly clear night

63° 💧 None 💨 5 mph H 85%30.18 inHg

3:00 AM

Clear night

63° 💧 None 💨 5 mph H 82%30.18 inHg

4:00 AM

Clear night

65° 💧 None 💨 6 mph H 76%30.18 inHg

5:00 AM

Clear night

67° 💧 None 💨 8 mph H 67%30.18 inHg

6:00 AM

Partly cloudy night

66° 💧 None 💨 9 mph H 64%30.21 inHg

7:00 AM

Partly cloudy

67° 💧 None 💨 10 mph H 62%30.21 inHg

8:00 AM

Mostly cloudy

68° 💧 None 💨 10 mph H 63%30.21 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 10 mph H 62%30.21 inHg

10:00 AM

Mostly sunny

74° 💧 None 💨 10 mph H 60%30.21 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 11 mph H 59%30.21 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 11 mph H 58%30.18 inHg

1:00 PM

Partly cloudy

81° 💧 None 💨 11 mph H 57%30.15 inHg

2:00 PM

Partly cloudy

82° 💧 0.001 in 💨 12 mph H 54%30.12 inHg

3:00 PM

Light rain

83° 💧 0.007 in 💨 13 mph H 53%30.09 inHg

4:00 PM

Partly cloudy

83° 💧 0.002 in 💨 12 mph H 53%30.06 inHg

5:00 PM

Partly cloudy

83° 💧 0.001 in 💨 12 mph H 55%30.06 inHg

6:00 PM

Sunny

81° 💧 None 💨 10 mph H 59%30.03 inHg

7:00 PM

Sunny

79° 💧 None 💨 9 mph H 64%30.03 inHg

8:00 PM

Clear night

76° 💧 None 💨 8 mph H 69%30.03 inHg

11:00 PM

Clear night

75° 💧 None 💨 10 mph H 67%30.00 inHg

Thursday

2:00 AM

Mostly clear night

73° 💧 None 💨 10 mph H 70%29.97 inHg

5:00 AM

Partly cloudy night

69° 💧 None 💨 7 mph H 82%29.97 inHg

8:00 AM

Light rain

68° 💧 None 💨 8 mph H 96%30.00 inHg

11:00 AM

Heavy rain

71° 💧 None 💨 11 mph H 97%30.00 inHg

2:00 PM

Moderate rain

72° 💧 None 💨 10 mph H 96%29.94 inHg

5:00 PM

Moderate rain

71° 💧 None 💨 7 mph H 97%29.91 inHg

8:00 PM

Light rain

70° 💧 None 💨 4 mph H 98%29.91 inHg

11:00 PM

Overcast night

69° 💧 None 💨 3 mph H 99%29.94 inHg

Friday

2:00 AM

Partly cloudy night

66° 💧 None 💨 6 mph H 99%29.94 inHg

5:00 AM

Partly cloudy night

62° 💧 None 💨 6 mph H 100%30.00 inHg

8:00 AM

Partly cloudy

60° 💧 None 💨 4 mph H 99%30.03 inHg

11:00 AM

Sunny

67° 💧 None 💨 5 mph H 73%30.06 inHg

2:00 PM

Sunny

72° 💧 None 💨 4 mph H 56%30.03 inHg

5:00 PM

Sunny

73° 💧 None 💨 5 mph H 54%30.00 inHg

8:00 PM

Clear night

64° 💧 None 💨 3 mph H 76%30.00 inHg

11:00 PM

Clear night

59° 💧 None 💨 5 mph H 81%30.03 inHg

Saturday

2:00 AM

Clear night

55° 💧 None 💨 4 mph H 88%30.03 inHg

5:00 AM

Overcast night

60° 💧 None 💨 4 mph H 71%30.00 inHg

8:00 AM

Overcast

63° 💧 None 💨 3 mph H 78%30.03 inHg

11:00 AM

Partly cloudy

75° 💧 None 💨 5 mph H 68%30.03 inHg

2:00 PM

Light rain

82° 💧 None 💨 6 mph H 61%30.00 inHg

5:00 PM

Light rain

76° 💧 None 💨 6 mph H 84%29.97 inHg

8:00 PM

Light rain

72° 💧 None 💨 4 mph H 93%30.00 inHg

Sunday

2:00 AM

Mostly cloudy night

69° 💧 None 💨 6 mph H 94%30.03 inHg

8:00 AM

Overcast

70° 💧 None 💨 7 mph H 97%30.09 inHg

2:00 PM

Light rain

80° 💧 None 💨 6 mph H 77%30.06 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 2 mph H 96%30.06 inHg

Monday

2:00 AM

Overcast night

67° 💧 None 💨 3 mph H 99%30.12 inHg

8:00 AM

Overcast

64° 💧 None 💨 3 mph H 99%30.15 inHg

2:00 PM

Overcast

77° 💧 None 💨 4 mph H 69%30.15 inHg

8:00 PM

Mostly clear night

71° 💧 None 💨 4 mph H 79%30.09 inHg

Tuesday

2:00 AM

Partly cloudy night

70° 💧 None 💨 8 mph H 66%30.06 inHg

8:00 AM

Overcast

73° 💧 None 💨 10 mph H 81%30.06 inHg

2:00 PM

Mostly cloudy

85° 💧 None 💨 13 mph H 61%30.00 inHg

8:00 PM

Heavy rain

71° 💧 None 💨 7 mph H 98%30.03 inHg

Wednesday

2:00 AM

Partly cloudy night

65° 💧 None 💨 6 mph H 99%30.12 inHg

8:00 AM

Partly cloudy

57° 💧 None 💨 5 mph H 98%30.24 inHg

2:00 PM

Partly cloudy

69° 💧 None 💨 8 mph H 53%30.24 inHg

8:00 PM

Clear night

61° 💧 None 💨 5 mph H 71%30.24 inHg

Thursday

2:00 AM

Mostly cloudy night

53° 💧 None 💨 1 mph H 85%30.30 inHg

8:00 AM

Sunny

53° 💧 None 💨 1 mph H 85%30.33 inHg

2:00 PM

Mostly cloudy

67° 💧 None 💨 4 mph H 56%30.27 inHg

8:00 PM

Overcast night

62° 💧 None 💨 4 mph H 70%30.21 inHg

Friday

2:00 AM

Mostly clear night

55° 💧 None 💨 2 mph H 85%30.18 inHg

8:00 AM

Sunny

56° 💧 None 💨 6 mph H 86%30.18 inHg

2:00 PM

Sunny

69° 💧 None 💨 11 mph H 51%30.12 inHg

8:00 PM

Clear night

60° 💧 None 💨 5 mph H 71%30.06 inHg

Saturday

2:00 AM

Clear night

55° 💧 None 💨 7 mph H 78%30.06 inHg

8:00 AM

Sunny

52° 💧 None 💨 4 mph H 83%30.09 inHg

2:00 PM

Overcast

67° 💧 None 💨 9 mph H 50%30.09 inHg

8:00 PM

Mostly clear night

59° 💧 None 💨 4 mph H 76%30.09 inHg

Sunday

2:00 AM

Clear night

51° 💧 None 💨 2 mph H 92%30.12 inHg

8:00 AM

Sunny

50° 💧 None 💨 4 mph H 92%30.18 inHg

2:00 PM

Mostly cloudy

71° 💧 None 💨 4 mph H 46%30.12 inHg

8:00 PM

Mostly clear night

62° 💧 None 💨 2 mph H 66%30.06 inHg

Monday

2:00 AM

Overcast night

54° 💧 None 💨 3 mph H 90%30.03 inHg

8:00 AM

Overcast

57° 💧 None 💨 3 mph H 86%30.06 inHg

2:00 PM

Overcast

74° 💧 None 💨 4 mph H 50%30.00 inHg

8:00 PM

Overcast night

67° 💧 None 💨 8 mph H 74%30.00 inHg

In Lemont Furnace and, more broadly, across the state of Pennsylvania: This evening will feature a mix of sun and clouds, with temperatures remaining mild between 67 and 73 degrees Fahrenheit. Winds will be light, coming from the north at around 5 mph, with gusts reaching up to 7 mph. No precipitation is expected during the next few hours, so it should remain dry. Conditions are calm, making for a pleasant evening. Temperatures are expected to stay steady through the night, providing comfortable conditions for outdoor activities or relaxation. Overall, it looks like a mild and quiet evening with no significant weather changes expected.

15-Day Weather Outlook for Lemont Furnace

TomorrowTomorrow

Partly cloudy 79°/56° 💧 None 💨 6 mph

Wednesday, Sep 9Wed Sep 9

Light rain 84°/63° 💧 0.023 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Heavy rain 77°/70° 💧 1.042 in 💨 12 mph

Friday, Sep 11Fri Sep 11

Overcast 74°/61° 💧 0.008 in 💨 4 mph

Saturday, Sep 12Sat Sep 12

Light rain 79°/61° 💧 0.024 in 💨 8 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 80°/65° 💧 0.012 in 💨 7 mph

Monday, Sep 14Mon Sep 14

Mostly cloudy 82°/66° 💧 0.000 in 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 84°/68° 💧 0.001 in 💨 7 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 88°/70° 💧 0.001 in 💨 10 mph

Thursday, Sep 17Thu Sep 17

Overcast 81°/61° 💧 0.001 in 💨 7 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 79°/56° 💧 None 💨 7 mph

Saturday, Sep 19Sat Sep 19

Moderate rain 72°/47° 💧 0.077 in 💨 12 mph

Sunday, Sep 20Sun Sep 20

Mostly cloudy 57°/44° 💧 None 💨 14 mph

Monday, Sep 21Mon Sep 21

Sunny 63°/48° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Lemont Furnace

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Lemont Furnace

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 6:00 AM

PM2.5 Fine particles Good 2,9µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 3,3µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 49,2µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 1,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Lemont Furnace

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,9High 😊Good

Tomorrow UV 6,6High 🙂Fair

Wednesday UV 6,8High 🙂Fair

Thursday UV 0,7Low 🙂Fair

Friday UV 6,0High 😊Good

Saturday UV 7,0High —Unavailable

Sunday UV 7,0High —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,3 9:00 AMUV 1,2 10:00 AMUV 2,6 11:00 AMUV 4,5 12:00 PMUV 6,1 1:00 PMUV 6,9 2:00 PMUV 6,7 3:00 PMUV 5,5 4:00 PMUV 3,8 5:00 PMUV 2,0 6:00 PMUV 0,8

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Lemont Furnace

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LEMONT FURNACE, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 9:00 PM–10:00 PM.

100/100Best-hour score

BEST TIME TONIGHT 9:00 PM–10:00 PM Astronomical darkness: 9:14 PM–5:20 AM

☁ Cloud cover 0% Real hourly forecast for the best viewing hour.

☾ Moonlight 16% Waning Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 4° high at the best hour.

✦ Estimated visible meteors 0–1/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min11%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

UPCOMING

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Lemont Furnace were last refreshed today at 5:59 AM. The current forecast period extends through 09/09/2026 at 3:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.