What is the weather in Lemont right now?

Current weather in Lemont is clear sky.

Where can I find the hourly weather forecast for Lemont?

This page shows hourly weather forecast for Lemont, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Lemont updated regularly?

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

Now · 5:28 PM

Lemont Weather & Hourly Forecast

United States · Pennsylvania · 16801

67°F

Sunny

Feels like: 62°F

💧 Humidity 46% 🌡 Pressure 30.18 inHg 💨 Wind 8 mph 👁 Visibility 27.6 mi ☁ Clouds 1% ☀️ UV index 1.6 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Lemont

Today

6:00 PM

Sunny

66° 💧 None 💨 6 mph H 49%30.18 inHg

9:00 PM

Clear night

58° 💧 None 💨 4 mph H 68%30.27 inHg

Tomorrow

12:00 AM

Clear night

54° 💧 None 💨 3 mph H 78%30.27 inHg

3:00 AM

Clear night

51° 💧 None 💨 1 mph H 81%30.30 inHg

6:00 AM

Clear night

48° 💧 None 💨 2 mph H 87%30.33 inHg

9:00 AM

Sunny

57° 💧 None 💨 3 mph H 67%30.36 inHg

12:00 PM

Sunny

65° 💧 None 💨 8 mph H 54%30.36 inHg

3:00 PM

Sunny

71° 💧 None 💨 8 mph H 50%30.30 inHg

6:00 PM

Sunny

69° 💧 None 💨 7 mph H 57%30.27 inHg

9:00 PM

Clear night

63° 💧 None 💨 6 mph H 69%30.30 inHg

Wednesday

12:00 AM

Clear night

61° 💧 None 💨 6 mph H 70%30.30 inHg

3:00 AM

Clear night

59° 💧 None 💨 6 mph H 77%30.33 inHg

6:00 AM

Clear night

57° 💧 None 💨 4 mph H 84%30.30 inHg

9:00 AM

Sunny

64° 💧 None 💨 4 mph H 73%30.36 inHg

12:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 62%30.33 inHg

3:00 PM

Partly cloudy

81° 💧 None 💨 5 mph H 58%30.27 inHg

Today

6:00 PM

Sunny

66° 💧 None 💨 6 mph H 49%30.18 inHg

7:00 PM

Sunny

62° 💧 None 💨 4 mph H 62%30.21 inHg

8:00 PM

Clear night

59° 💧 None 💨 4 mph H 65%30.21 inHg

9:00 PM

Clear night

58° 💧 None 💨 4 mph H 68%30.27 inHg

10:00 PM

Clear night

56° 💧 None 💨 3 mph H 71%30.27 inHg

11:00 PM

Clear night

55° 💧 None 💨 4 mph H 76%30.27 inHg

Tomorrow

12:00 AM

Clear night

54° 💧 None 💨 3 mph H 78%30.27 inHg

1:00 AM

Mostly clear night

53° 💧 None 💨 2 mph H 78%30.30 inHg

2:00 AM

Partly cloudy night

52° 💧 None 💨 2 mph H 80%30.30 inHg

3:00 AM

Clear night

51° 💧 None 💨 1 mph H 81%30.30 inHg

4:00 AM

Mostly clear night

50° 💧 None 💨 1 mph H 84%30.33 inHg

5:00 AM

Clear night

49° 💧 None 💨 1 mph H 86%30.33 inHg

6:00 AM

Clear night

48° 💧 None 💨 2 mph H 87%30.33 inHg

7:00 AM

Sunny

48° 💧 None 💨 2 mph H 87%30.33 inHg

8:00 AM

Sunny

52° 💧 None 💨 4 mph H 80%30.36 inHg

9:00 AM

Sunny

57° 💧 None 💨 3 mph H 67%30.36 inHg

10:00 AM

Mostly sunny

61° 💧 None 💨 6 mph H 59%30.36 inHg

11:00 AM

Sunny

63° 💧 None 💨 8 mph H 54%30.36 inHg

12:00 PM

Sunny

65° 💧 None 💨 8 mph H 54%30.36 inHg

1:00 PM

Sunny

68° 💧 None 💨 8 mph H 53%30.33 inHg

2:00 PM

Sunny

69° 💧 None 💨 8 mph H 50%30.33 inHg

3:00 PM

Sunny

71° 💧 None 💨 8 mph H 50%30.30 inHg

4:00 PM

Sunny

71° 💧 None 💨 8 mph H 51%30.30 inHg

5:00 PM

Sunny

71° 💧 None 💨 9 mph H 52%30.27 inHg

6:00 PM

Sunny

69° 💧 None 💨 7 mph H 57%30.27 inHg

7:00 PM

Sunny

66° 💧 None 💨 5 mph H 67%30.27 inHg

8:00 PM

Clear night

63° 💧 None 💨 5 mph H 70%30.27 inHg

9:00 PM

Clear night

63° 💧 None 💨 6 mph H 69%30.30 inHg

10:00 PM

Clear night

62° 💧 None 💨 6 mph H 69%30.30 inHg

11:00 PM

Clear night

62° 💧 None 💨 6 mph H 69%30.30 inHg

Wednesday

12:00 AM

Clear night

61° 💧 None 💨 6 mph H 70%30.30 inHg

1:00 AM

Clear night

61° 💧 None 💨 6 mph H 71%30.30 inHg

2:00 AM

Clear night

60° 💧 None 💨 6 mph H 74%30.33 inHg

3:00 AM

Clear night

59° 💧 None 💨 6 mph H 77%30.33 inHg

4:00 AM

Clear night

58° 💧 None 💨 5 mph H 79%30.30 inHg

5:00 AM

Clear night

57° 💧 None 💨 5 mph H 82%30.30 inHg

6:00 AM

Clear night

57° 💧 None 💨 4 mph H 84%30.30 inHg

7:00 AM

Sunny

56° 💧 None 💨 4 mph H 86%30.33 inHg

8:00 AM

Sunny

60° 💧 None 💨 4 mph H 81%30.36 inHg

9:00 AM

Sunny

64° 💧 None 💨 4 mph H 73%30.36 inHg

10:00 AM

Sunny

68° 💧 None 💨 4 mph H 69%30.36 inHg

11:00 AM

Mostly sunny

72° 💧 None 💨 4 mph H 65%30.36 inHg

12:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 62%30.33 inHg

1:00 PM

Mostly sunny

78° 💧 None 💨 4 mph H 59%30.33 inHg

2:00 PM

Mostly sunny

80° 💧 None 💨 5 mph H 58%30.30 inHg

3:00 PM

Partly cloudy

81° 💧 None 💨 5 mph H 58%30.27 inHg

4:00 PM

Mostly sunny

81° 💧 None 💨 5 mph H 59%30.27 inHg

5:00 PM

Mostly sunny

81° 💧 None 💨 5 mph H 60%30.27 inHg

6:00 PM

Sunny

80° 💧 0.001 in 💨 4 mph H 65%30.24 inHg

7:00 PM

Mostly sunny

76° 💧 0.000 in 💨 2 mph H 77%30.24 inHg

8:00 PM

Mostly clear night

74° 💧 0.001 in 💨 2 mph H 82%30.24 inHg

9:00 PM

Mostly clear night

72° 💧 None 💨 1 mph H 84%30.27 inHg

10:00 PM

Mostly clear night

70° 💧 None 💨 2 mph H 87%30.30 inHg

11:00 PM

Mostly clear night

69° 💧 None 💨 3 mph H 87%30.30 inHg

Thursday

12:00 AM

Mostly clear night

68° 💧 None 💨 3 mph H 86%30.30 inHg

1:00 AM

Mostly clear night

68° 💧 None 💨 3 mph H 86%30.27 inHg

2:00 AM

Clear night

67° 💧 None 💨 4 mph H 84%30.27 inHg

3:00 AM

Clear night

66° 💧 None 💨 4 mph H 84%30.24 inHg

4:00 AM

Mostly clear night

66° 💧 None 💨 4 mph H 84%30.24 inHg

5:00 AM

Mostly clear night

65° 💧 None 💨 4 mph H 84%30.24 inHg

6:00 AM

Partly cloudy night

65° 💧 None 💨 4 mph H 84%30.24 inHg

7:00 AM

Mostly sunny

64° 💧 None 💨 3 mph H 86%30.24 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 5 mph H 81%30.24 inHg

11:00 AM

Mostly sunny

77° 💧 None 💨 4 mph H 65%30.24 inHg

2:00 PM

Moderate rain

78° 💧 None 💨 6 mph H 80%30.18 inHg

5:00 PM

Overcast

80° 💧 None 💨 6 mph H 74%30.09 inHg

8:00 PM

Light thunderstorms

73° 💧 None 💨 5 mph H 92%30.12 inHg

11:00 PM

Overcast night

70° 💧 None 💨 5 mph H 98%30.12 inHg

Friday

2:00 AM

Overcast night

69° 💧 None 💨 5 mph H 99%30.12 inHg

5:00 AM

Mostly cloudy night

68° 💧 None 💨 8 mph H 98%30.12 inHg

8:00 AM

Mostly sunny

65° 💧 None 💨 7 mph H 97%30.18 inHg

11:00 AM

Mostly cloudy

70° 💧 None 💨 8 mph H 71%30.21 inHg

2:00 PM

Mostly cloudy

75° 💧 None 💨 7 mph H 52%30.15 inHg

5:00 PM

Sunny

74° 💧 None 💨 7 mph H 54%30.12 inHg

8:00 PM

Clear night

66° 💧 None 💨 8 mph H 67%30.18 inHg

11:00 PM

Clear night

60° 💧 None 💨 8 mph H 72%30.24 inHg

Saturday

2:00 AM

Clear night

55° 💧 None 💨 6 mph H 83%30.24 inHg

5:00 AM

Clear night

53° 💧 None 💨 5 mph H 86%30.21 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 4 mph H 80%30.21 inHg

11:00 AM

Partly cloudy

64° 💧 None 💨 8 mph H 63%30.21 inHg

2:00 PM

Mostly cloudy

68° 💧 None 💨 8 mph H 57%30.15 inHg

5:00 PM

Overcast

68° 💧 None 💨 8 mph H 62%30.09 inHg

8:00 PM

Overcast night

66° 💧 None 💨 5 mph H 71%30.09 inHg

11:00 PM

Partly cloudy night

67° 💧 None 💨 11 mph H 75%30.09 inHg

Sunday

2:00 AM

Overcast night

66° 💧 None 💨 10 mph H 87%30.06 inHg

5:00 AM

Overcast night

65° 💧 None 💨 9 mph H 90%30.03 inHg

8:00 AM

Overcast

66° 💧 None 💨 9 mph H 90%30.00 inHg

2:00 PM

Light thunderstorms

76° 💧 None 💨 9 mph H 81%29.91 inHg

8:00 PM

Moderate rain

69° 💧 None 💨 6 mph H 98%29.91 inHg

Monday

2:00 AM

Overcast night

66° 💧 None 💨 4 mph H 100%29.91 inHg

8:00 AM

Moderate rain

67° 💧 None 💨 2 mph H 98%29.94 inHg

2:00 PM

Moderate rain

66° 💧 None 💨 7 mph H 99%29.94 inHg

8:00 PM

Moderate rain

62° 💧 None 💨 7 mph H 99%29.94 inHg

Tuesday

2:00 AM

Moderate rain

57° 💧 None 💨 11 mph H 99%29.97 inHg

8:00 AM

Mostly cloudy

55° 💧 None 💨 11 mph H 98%30.06 inHg

2:00 PM

Mostly cloudy

65° 💧 None 💨 11 mph H 62%30.15 inHg

8:00 PM

Clear night

58° 💧 None 💨 9 mph H 67%30.24 inHg

Wednesday

2:00 AM

Clear night

50° 💧 None 💨 7 mph H 88%30.36 inHg

8:00 AM

Sunny

49° 💧 None 💨 6 mph H 89%30.45 inHg

2:00 PM

Sunny

66° 💧 None 💨 7 mph H 42%30.45 inHg

8:00 PM

Clear night

55° 💧 None 💨 5 mph H 75%30.45 inHg

Thursday

2:00 AM

Clear night

50° 💧 None 💨 4 mph H 86%30.50 inHg

8:00 AM

Sunny

49° 💧 None 💨 4 mph H 91%30.53 inHg

2:00 PM

Sunny

65° 💧 None 💨 7 mph H 56%30.50 inHg

8:00 PM

Clear night

55° 💧 None 💨 5 mph H 79%30.47 inHg

Friday

2:00 AM

Clear night

50° 💧 None 💨 5 mph H 93%30.47 inHg

8:00 AM

Sunny

49° 💧 None 💨 4 mph H 93%30.50 inHg

2:00 PM

Mostly sunny

65° 💧 None 💨 5 mph H 61%30.42 inHg

8:00 PM

Clear night

56° 💧 None 💨 5 mph H 85%30.36 inHg

Saturday

2:00 AM

Clear night

53° 💧 None 💨 4 mph H 90%30.36 inHg

8:00 AM

Partly cloudy

52° 💧 None 💨 3 mph H 98%30.36 inHg

2:00 PM

Overcast

68° 💧 None 💨 4 mph H 65%30.30 inHg

8:00 PM

Overcast night

61° 💧 None 💨 2 mph H 84%30.24 inHg

Sunday

2:00 AM

Mostly clear night

56° 💧 None 💨 3 mph H 88%30.24 inHg

8:00 AM

Overcast

55° 💧 None 💨 3 mph H 93%30.24 inHg

2:00 PM

Overcast

71° 💧 None 💨 7 mph H 70%30.18 inHg

8:00 PM

Partly cloudy night

64° 💧 None 💨 6 mph H 89%30.12 inHg

Monday

2:00 AM

Overcast night

62° 💧 None 💨 7 mph H 98%30.12 inHg

8:00 AM

Overcast

63° 💧 None 💨 6 mph H 100%30.12 inHg

2:00 PM

Light rain

71° 💧 None 💨 9 mph H 77%30.09 inHg

8:00 PM

Mostly cloudy night

67° 💧 None 💨 7 mph H 87%30.03 inHg

Tuesday

2:00 AM

Light rain

65° 💧 None 💨 4 mph H 99%30.03 inHg

8:00 AM

Moderate rain

65° 💧 None 💨 4 mph H 100%30.00 inHg

In Lemont and, more broadly, across the state of Pennsylvania: The late afternoon will feature clear skies with temperatures gradually cooling from the high 60s to the low 50s as evening approaches. Winds will be light and variable, coming mainly from the northeast at speeds up to 7 mph, with gusts reaching around 10 mph. No precipitation is expected during this time, providing a calm and pleasant evening. Temperatures will remain mild, making for comfortable conditions as the night begins. Overall, expect a tranquil end to the day with clear skies and gentle breezes.

15-Day Weather Outlook for Lemont

TomorrowTomorrow

Partly cloudy 71°/48° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 80°/55° 💧 None 💨 6 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 83°/65° 💧 0.109 in 💨 8 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 76°/61° 💧 0.040 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Partly cloudy 71°/55° 💧 None 💨 8 mph

Sunday, Sep 20Sun Sep 20

Overcast 85°/67° 💧 0.002 in 💨 9 mph

Monday, Sep 21Mon Sep 21

Mostly cloudy 76°/70° 💧 0.144 in 💨 6 mph

Tuesday, Sep 22Tue Sep 22

Light thunderstorms 70°/67° 💧 0.946 in 💨 11 mph

Wednesday, Sep 23Wed Sep 23

Partly cloudy 61°/51° 💧 0.020 in 💨 14 mph

Thursday, Sep 24Thu Sep 24

Mostly sunny 62°/48° 💧 0.001 in 💨 11 mph

Friday, Sep 25Fri Sep 25

Sunny 63°/48° 💧 None 💨 10 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 56°/46° 💧 None 💨 7 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 63°/46° 💧 None 💨 4 mph

Monday, Sep 28Mon Sep 28

Overcast 69°/50° 💧 None 💨 7 mph

Tuesday, Sep 29Tue Sep 29

Mostly sunny 61°/61° 💧 None 💨 3 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Lemont

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Lemont

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 6:00 PM

PM2.5 Fine particles Good 2,5µg/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 2,9µg/m³

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

O₃ Ozone Fair 81,3µg/m³

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

NO₂ Nitrogen dioxide Good 2,0µg/m³

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

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Lemont

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 6,1High 🙂Fair

Tomorrow UV 5,7Moderate 😐Moderate

Wednesday UV 6,8High 😐Moderate

Thursday UV 7,0High 😐Moderate

Friday UV 6,0High 🙂Fair

Saturday UV 5,0Moderate —Unavailable

Sunday UV 3,0Moderate —Unavailable

Hourly UV index today

6:00 PMUV 0,5 7:00 PMUV 0,0

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.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

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

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · LEMONT, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:55 PM–5:19 AM

☁ Cloud cover 2% Real hourly forecast for the best viewing hour.

☾ Moonlight 13% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 87° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

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.

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Forecast data for Lemont were last refreshed today at 5:28 PM. The current forecast period extends through 16/09/2026 at 3:00 PM. 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.