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Current weather in Arlington Heights is broken clouds.

Where can I find the hourly weather forecast for Arlington Heights?

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

Is the weather forecast for Arlington Heights updated regularly?

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

Now · 7:26 AM

Arlington Heights Weather & Hourly Forecast

United States · Pennsylvania · 18360

50°F

Mostly cloudy

Feels like: 42°F

💧 Humidity 66% 🌡 Pressure 30.45 inHg 💨 Wind 10 mph 👁 Visibility 23.9 mi ☁ Clouds 75% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:48 AM 🌇 Sunset 6:57 PM

Hourly Forecast for Arlington Heights

Today

8:00 AM

Mostly cloudy

51° 💧 None 💨 10 mph H 68%30.45 inHg

11:00 AM

Partly cloudy

59° 💧 None 💨 12 mph H 60%30.45 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 12 mph H 48%30.42 inHg

5:00 PM

Mostly sunny

63° 💧 None 💨 10 mph H 50%30.39 inHg

8:00 PM

Clear night

55° 💧 None 💨 7 mph H 68%30.42 inHg

11:00 PM

Clear night

52° 💧 None 💨 9 mph H 64%30.45 inHg

Tomorrow

2:00 AM

Clear night

49° 💧 None 💨 8 mph H 70%30.42 inHg

5:00 AM

Clear night

48° 💧 None 💨 9 mph H 79%30.42 inHg

8:00 AM

Sunny

49° 💧 None 💨 7 mph H 79%30.45 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 10 mph H 54%30.39 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 9 mph H 43%30.33 inHg

5:00 PM

Partly cloudy

64° 💧 None 💨 8 mph H 46%30.27 inHg

8:00 PM

Clear night

54° 💧 None 💨 7 mph H 68%30.27 inHg

11:00 PM

Clear night

52° 💧 None 💨 7 mph H 71%30.27 inHg

Friday

2:00 AM

Clear night

50° 💧 None 💨 8 mph H 75%30.24 inHg

5:00 AM

Mostly clear night

49° 💧 None 💨 8 mph H 79%30.21 inHg

Today

8:00 AM

Mostly cloudy

51° 💧 None 💨 10 mph H 68%30.45 inHg

9:00 AM

Mostly sunny

54° 💧 None 💨 11 mph H 66%30.47 inHg

10:00 AM

Sunny

56° 💧 None 💨 12 mph H 62%30.47 inHg

11:00 AM

Partly cloudy

59° 💧 None 💨 12 mph H 60%30.45 inHg

12:00 PM

Partly cloudy

61° 💧 None 💨 12 mph H 54%30.45 inHg

1:00 PM

Mostly sunny

63° 💧 None 💨 11 mph H 52%30.45 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 12 mph H 48%30.42 inHg

3:00 PM

Mostly sunny

65° 💧 None 💨 11 mph H 48%30.39 inHg

4:00 PM

Sunny

65° 💧 None 💨 11 mph H 49%30.39 inHg

5:00 PM

Mostly sunny

63° 💧 None 💨 10 mph H 50%30.39 inHg

6:00 PM

Sunny

61° 💧 None 💨 8 mph H 57%30.42 inHg

7:00 PM

Clear night

58° 💧 None 💨 7 mph H 64%30.42 inHg

8:00 PM

Clear night

55° 💧 None 💨 7 mph H 68%30.42 inHg

9:00 PM

Clear night

55° 💧 None 💨 9 mph H 68%30.45 inHg

10:00 PM

Clear night

54° 💧 None 💨 9 mph H 65%30.45 inHg

11:00 PM

Clear night

52° 💧 None 💨 9 mph H 64%30.45 inHg

Tomorrow

12:00 AM

Clear night

51° 💧 None 💨 8 mph H 62%30.45 inHg

1:00 AM

Clear night

49° 💧 None 💨 8 mph H 65%30.45 inHg

2:00 AM

Clear night

49° 💧 None 💨 8 mph H 70%30.42 inHg

3:00 AM

Clear night

48° 💧 None 💨 9 mph H 74%30.42 inHg

4:00 AM

Clear night

48° 💧 None 💨 9 mph H 77%30.42 inHg

5:00 AM

Clear night

48° 💧 None 💨 9 mph H 79%30.42 inHg

6:00 AM

Clear night

47° 💧 None 💨 9 mph H 81%30.42 inHg

7:00 AM

Sunny

47° 💧 None 💨 8 mph H 83%30.42 inHg

8:00 AM

Sunny

49° 💧 None 💨 7 mph H 79%30.45 inHg

9:00 AM

Mostly sunny

52° 💧 None 💨 9 mph H 70%30.42 inHg

10:00 AM

Mostly sunny

55° 💧 None 💨 10 mph H 61%30.42 inHg

11:00 AM

Mostly cloudy

58° 💧 None 💨 10 mph H 54%30.39 inHg

12:00 PM

Partly cloudy

60° 💧 None 💨 10 mph H 49%30.39 inHg

1:00 PM

Mostly cloudy

62° 💧 None 💨 9 mph H 46%30.36 inHg

2:00 PM

Mostly sunny

64° 💧 None 💨 9 mph H 43%30.33 inHg

3:00 PM

Sunny

65° 💧 None 💨 9 mph H 42%30.30 inHg

4:00 PM

Mostly sunny

65° 💧 None 💨 9 mph H 43%30.30 inHg

5:00 PM

Partly cloudy

64° 💧 None 💨 8 mph H 46%30.27 inHg

6:00 PM

Partly cloudy

61° 💧 None 💨 7 mph H 55%30.27 inHg

7:00 PM

Mostly cloudy night

56° 💧 None 💨 6 mph H 66%30.27 inHg

8:00 PM

Clear night

54° 💧 None 💨 7 mph H 68%30.27 inHg

9:00 PM

Clear night

54° 💧 None 💨 7 mph H 66%30.27 inHg

10:00 PM

Clear night

53° 💧 None 💨 7 mph H 67%30.27 inHg

11:00 PM

Clear night

52° 💧 None 💨 7 mph H 71%30.27 inHg

Friday

12:00 AM

Mostly clear night

51° 💧 None 💨 7 mph H 73%30.27 inHg

1:00 AM

Clear night

51° 💧 None 💨 7 mph H 74%30.24 inHg

2:00 AM

Clear night

50° 💧 None 💨 8 mph H 75%30.24 inHg

3:00 AM

Mostly clear night

49° 💧 None 💨 8 mph H 76%30.24 inHg

4:00 AM

Clear night

49° 💧 None 💨 7 mph H 77%30.21 inHg

5:00 AM

Mostly clear night

49° 💧 None 💨 8 mph H 79%30.21 inHg

6:00 AM

Partly cloudy night

49° 💧 None 💨 8 mph H 81%30.21 inHg

7:00 AM

Mostly cloudy

49° 💧 None 💨 7 mph H 82%30.24 inHg

8:00 AM

Mostly cloudy

52° 💧 None 💨 8 mph H 76%30.24 inHg

9:00 AM

Overcast

57° 💧 None 💨 7 mph H 70%30.21 inHg

10:00 AM

Overcast

61° 💧 None 💨 9 mph H 60%30.21 inHg

11:00 AM

Overcast

64° 💧 None 💨 10 mph H 53%30.21 inHg

12:00 PM

Mostly cloudy

67° 💧 None 💨 9 mph H 50%30.18 inHg

1:00 PM

Mostly sunny

69° 💧 None 💨 9 mph H 45%30.18 inHg

2:00 PM

Sunny

71° 💧 None 💨 9 mph H 41%30.15 inHg

3:00 PM

Mostly sunny

71° 💧 None 💨 9 mph H 38%30.12 inHg

4:00 PM

Mostly sunny

71° 💧 None 💨 9 mph H 39%30.12 inHg

5:00 PM

Partly cloudy

70° 💧 None 💨 8 mph H 43%30.12 inHg

6:00 PM

Mostly cloudy

66° 💧 None 💨 5 mph H 56%30.15 inHg

7:00 PM

Overcast night

60° 💧 None 💨 6 mph H 68%30.15 inHg

8:00 PM

Mostly cloudy night

58° 💧 None 💨 6 mph H 70%30.15 inHg

11:00 PM

Mostly cloudy night

57° 💧 None 💨 8 mph H 71%30.15 inHg

Saturday

2:00 AM

Partly cloudy night

55° 💧 None 💨 7 mph H 75%30.15 inHg

5:00 AM

Mostly cloudy night

52° 💧 None 💨 6 mph H 80%30.12 inHg

8:00 AM

Partly cloudy

56° 💧 None 💨 7 mph H 73%30.12 inHg

11:00 AM

Mostly cloudy

67° 💧 None 💨 8 mph H 53%30.12 inHg

2:00 PM

Overcast

72° 💧 None 💨 9 mph H 42%30.06 inHg

5:00 PM

Overcast

69° 💧 None 💨 8 mph H 49%30.03 inHg

8:00 PM

Overcast night

63° 💧 None 💨 7 mph H 56%30.03 inHg

11:00 PM

Overcast night

61° 💧 None 💨 7 mph H 56%30.03 inHg

Sunday

2:00 AM

Overcast night

60° 💧 None 💨 9 mph H 59%29.97 inHg

5:00 AM

Moderate rain

54° 💧 None 💨 8 mph H 93%29.94 inHg

8:00 AM

Light rain

54° 💧 None 💨 11 mph H 95%29.91 inHg

11:00 AM

Light rain

55° 💧 None 💨 12 mph H 90%29.88 inHg

2:00 PM

Light rain

57° 💧 None 💨 12 mph H 86%29.85 inHg

5:00 PM

Overcast

59° 💧 None 💨 11 mph H 69%29.83 inHg

8:00 PM

Overcast night

57° 💧 None 💨 10 mph H 71%29.85 inHg

11:00 PM

Overcast night

54° 💧 None 💨 9 mph H 83%29.83 inHg

Monday

2:00 AM

Overcast night

54° 💧 None 💨 8 mph H 78%29.83 inHg

5:00 AM

Overcast night

54° 💧 None 💨 7 mph H 76%29.83 inHg

8:00 AM

Overcast

55° 💧 None 💨 8 mph H 75%29.85 inHg

11:00 AM

Partly cloudy

62° 💧 None 💨 7 mph H 63%29.85 inHg

2:00 PM

Overcast

67° 💧 None 💨 6 mph H 57%29.85 inHg

5:00 PM

Overcast

66° 💧 None 💨 6 mph H 60%29.85 inHg

8:00 PM

Clear night

57° 💧 None 💨 6 mph H 80%29.91 inHg

Tuesday

2:00 AM

Overcast night

55° 💧 None 💨 4 mph H 84%29.94 inHg

8:00 AM

Sunny

56° 💧 None 💨 4 mph H 80%30.00 inHg

2:00 PM

Sunny

73° 💧 None 💨 5 mph H 44%29.97 inHg

8:00 PM

Clear night

61° 💧 None 💨 1 mph H 76%30.00 inHg

Wednesday

2:00 AM

Clear night

52° 💧 None 💨 1 mph H 90%30.06 inHg

8:00 AM

Sunny

56° 💧 None 💨 0 mph H 81%30.09 inHg

2:00 PM

Mostly sunny

74° 💧 None 💨 8 mph H 55%30.03 inHg

8:00 PM

Partly cloudy night

65° 💧 None 💨 5 mph H 81%30.03 inHg

Thursday

2:00 AM

Mostly clear night

60° 💧 None 💨 4 mph H 97%30.03 inHg

8:00 AM

Mostly sunny

60° 💧 None 💨 5 mph H 96%30.03 inHg

2:00 PM

Overcast

77° 💧 None 💨 14 mph H 57%29.94 inHg

8:00 PM

Overcast night

70° 💧 None 💨 11 mph H 77%29.88 inHg

Friday

2:00 AM

Moderate rain

67° 💧 None 💨 9 mph H 100%29.80 inHg

8:00 AM

Light rain

68° 💧 None 💨 5 mph H 99%29.77 inHg

2:00 PM

Sunny

77° 💧 None 💨 6 mph H 45%29.74 inHg

8:00 PM

Clear night

63° 💧 None 💨 6 mph H 68%29.80 inHg

Saturday

2:00 AM

Clear night

56° 💧 None 💨 8 mph H 79%29.88 inHg

8:00 AM

Sunny

53° 💧 None 💨 6 mph H 80%30.00 inHg

2:00 PM

Overcast

63° 💧 None 💨 9 mph H 46%30.03 inHg

8:00 PM

Clear night

52° 💧 None 💨 4 mph H 66%30.12 inHg

Sunday

2:00 AM

Clear night

46° 💧 None 💨 2 mph H 82%30.21 inHg

8:00 AM

Mostly sunny

45° 💧 None 💨 3 mph H 88%30.30 inHg

2:00 PM

Overcast

59° 💧 None 💨 5 mph H 46%30.27 inHg

8:00 PM

Partly cloudy night

53° 💧 None 💨 1 mph H 74%30.24 inHg

Monday

2:00 AM

Overcast night

45° 💧 None 💨 2 mph H 95%30.27 inHg

8:00 AM

Partly cloudy

46° 💧 None 💨 4 mph H 83%30.27 inHg

2:00 PM

Partly cloudy

65° 💧 None 💨 6 mph H 40%30.18 inHg

8:00 PM

Clear night

53° 💧 None 💨 5 mph H 76%30.18 inHg

Tuesday

2:00 AM

Clear night

49° 💧 None 💨 4 mph H 82%30.15 inHg

8:00 AM

Sunny

51° 💧 None 💨 5 mph H 89%30.12 inHg

2:00 PM

Sunny

68° 💧 None 💨 9 mph H 55%30.00 inHg

8:00 PM

Clear night

61° 💧 None 💨 9 mph H 79%29.88 inHg

Wednesday

2:00 AM

Clear night

59° 💧 None 💨 9 mph H 86%29.80 inHg

8:00 AM

Mostly sunny

59° 💧 None 💨 5 mph H 86%29.74 inHg

2:00 PM

Sunny

67° 💧 None 💨 7 mph H 35%29.68 inHg

8:00 PM

Clear night

55° 💧 None 💨 8 mph H 52%29.77 inHg

In Arlington Heights and, more broadly, across the state of Pennsylvania: This morning will start with mostly cloudy skies and mild temperatures ranging from 55 to 64 degrees Fahrenheit. Light northeast winds will blow at around 8 mph, with gusts reaching up to 19 mph. As the day progresses, the sky will remain mostly cloudy, and there is a high likelihood of rain, with total accumulation around 0.24 inches. Winds will continue to be light, but gusts may be slightly stronger during the storm. Temperatures are expected to stay within the mild range through the afternoon, making for a relatively comfortable day despite the unsettled weather. Be prepared for the possibility of rain, especially later in the day.

15-Day Weather Outlook for Arlington Heights

TomorrowTomorrow

Mostly sunny 65°/47° 💧 None 💨 10 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 71°/49° 💧 None 💨 10 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 72°/52° 💧 None 💨 9 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 60°/54° 💧 0.380 in 💨 12 mph

Monday, Sep 28Mon Sep 28

Overcast 67°/54° 💧 0.004 in 💨 8 mph

Tuesday, Sep 29Tue Sep 29

Overcast 73°/55° 💧 None 💨 5 mph

Wednesday, Sep 30Wed Sep 30

Mostly sunny 74°/52° 💧 None 💨 8 mph

Thursday, Oct 1Thu Oct 1

Overcast 77°/60° 💧 0.005 in 💨 14 mph

Friday, Oct 2Fri Oct 2

Moderate rain 77°/63° 💧 0.846 in 💨 9 mph

Saturday, Oct 3Sat Oct 3

Overcast 63°/52° 💧 None 💨 9 mph

Sunday, Oct 4Sun Oct 4

Mostly sunny 59°/45° 💧 None 💨 5 mph

Monday, Oct 5Mon Oct 5

Overcast 65°/45° 💧 None 💨 6 mph

Tuesday, Oct 6Tue Oct 6

Sunny 68°/49° 💧 None 💨 9 mph

Wednesday, Oct 7Wed Oct 7

Mostly sunny 67°/55° 💧 0.010 in 💨 9 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Arlington Heights

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Arlington Heights

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 8:00 AM

PM2.5 Fine particles Good 1,1µg/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 2,3µg/m³

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

O₃ Ozone Good 46,0µg/m³

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

NO₂ Nitrogen dioxide Good 9,5µg/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 Arlington Heights

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 5,6Moderate 😊Good

Tomorrow UV 5,4Moderate 🙂Fair

Friday UV 5,2Moderate 😐Moderate

Saturday UV 4,0Moderate 🙂Fair

Sunday UV 5,0Moderate 🙂Fair

Monday UV 6,0High —Unavailable

Tuesday UV 6,0High —Unavailable

Hourly UV index today

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

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

Moderate UV risk

Sunglasses and sun protection are recommended for prolonged exposure.

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 Arlington Heights

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · ARLINGTON HEIGHTS, PENNSYLVANIA

Tonight's Stargazing & Shooting Stars

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

96/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 8:28 PM–5:18 AM

☁ Cloud cover 5% Real hourly forecast for the best viewing hour.

☾ Moonlight 94% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 62° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min71%

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

SEP 20–NOV 20

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

ACTIVE NOW

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

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% 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 Arlington Heights were last refreshed today at 7:26 AM. The current forecast period extends through 25/09/2026 at 5:00 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.