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Current weather in South Chicago Heights is clear sky.

Where can I find the hourly weather forecast for South Chicago Heights?

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

Is the weather forecast for South Chicago Heights updated regularly?

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

Now · 12:57 PM

South Chicago Heights Weather & Hourly Forecast

United States · Illinois · 60411

85°F

Sunny

Feels like: 85°F

💧 Humidity 50% 🌡 Pressure 29.85 inHg 💨 Wind 8 mph 👁 Visibility 23.5 mi ☁ Clouds 9% ☀️ UV index 6.4 · High 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for South Chicago Heights

Today

1:00 PM

Sunny

85° 💧 None 💨 8 mph H 50%29.85 inHg

4:00 PM

Sunny

87° 💧 0.005 in 💨 8 mph H 46%29.83 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 57%29.83 inHg

10:00 PM

Clear night

76° 💧 None 💨 4 mph H 75%29.91 inHg

Tomorrow

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 85%29.94 inHg

4:00 AM

Mostly clear night

68° 💧 None 💨 5 mph H 86%29.97 inHg

7:00 AM

Mostly cloudy

65° 💧 None 💨 5 mph H 73%30.00 inHg

10:00 AM

Partly cloudy

74° 💧 None 💨 4 mph H 51%30.03 inHg

1:00 PM

Mostly cloudy

78° 💧 0.006 in 💨 8 mph H 40%30.03 inHg

4:00 PM

Overcast

72° 💧 0.003 in 💨 9 mph H 53%30.03 inHg

7:00 PM

Sunny

67° 💧 None 💨 7 mph H 67%30.06 inHg

10:00 PM

Clear night

64° 💧 None 💨 5 mph H 64%30.15 inHg

Monday

1:00 AM

Clear night

61° 💧 None 💨 3 mph H 75%30.15 inHg

4:00 AM

Clear night

59° 💧 None 💨 4 mph H 79%30.18 inHg

7:00 AM

Sunny

58° 💧 None 💨 3 mph H 80%30.24 inHg

10:00 AM

Sunny

68° 💧 None 💨 9 mph H 44%30.24 inHg

Today

1:00 PM

Sunny

85° 💧 None 💨 8 mph H 50%29.85 inHg

2:00 PM

Partly cloudy

86° 💧 None 💨 8 mph H 45%29.85 inHg

3:00 PM

Sunny

86° 💧 None 💨 8 mph H 44%29.85 inHg

4:00 PM

Sunny

87° 💧 0.000 in 💨 8 mph H 46%29.83 inHg

5:00 PM

Partly cloudy

86° 💧 0.003 in 💨 9 mph H 48%29.83 inHg

6:00 PM

Mostly cloudy

84° 💧 0.002 in 💨 7 mph H 51%29.83 inHg

7:00 PM

Sunny

82° 💧 None 💨 5 mph H 57%29.83 inHg

8:00 PM

Clear night

79° 💧 None 💨 5 mph H 64%29.85 inHg

9:00 PM

Clear night

78° 💧 None 💨 5 mph H 70%29.88 inHg

10:00 PM

Clear night

76° 💧 None 💨 4 mph H 75%29.91 inHg

11:00 PM

Clear night

75° 💧 None 💨 3 mph H 79%29.91 inHg

Tomorrow

12:00 AM

Clear night

73° 💧 None 💨 4 mph H 82%29.94 inHg

1:00 AM

Clear night

72° 💧 None 💨 4 mph H 85%29.94 inHg

2:00 AM

Clear night

71° 💧 None 💨 4 mph H 86%29.94 inHg

3:00 AM

Clear night

69° 💧 None 💨 5 mph H 87%29.94 inHg

4:00 AM

Mostly clear night

68° 💧 None 💨 5 mph H 86%29.97 inHg

5:00 AM

Partly cloudy night

67° 💧 None 💨 5 mph H 83%29.97 inHg

6:00 AM

Mostly cloudy night

66° 💧 None 💨 5 mph H 78%29.97 inHg

7:00 AM

Mostly cloudy

65° 💧 None 💨 5 mph H 73%30.00 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 66%30.03 inHg

9:00 AM

Mostly cloudy

71° 💧 None 💨 5 mph H 57%30.03 inHg

10:00 AM

Partly cloudy

74° 💧 None 💨 4 mph H 51%30.03 inHg

11:00 AM

Mostly cloudy

76° 💧 None 💨 4 mph H 45%30.03 inHg

12:00 PM

Mostly cloudy

78° 💧 None 💨 5 mph H 40%30.03 inHg

1:00 PM

Mostly cloudy

78° 💧 None 💨 8 mph H 40%30.03 inHg

2:00 PM

Overcast

78° 💧 None 💨 9 mph H 41%30.03 inHg

3:00 PM

Light rain

74° 💧 0.006 in 💨 9 mph H 47%30.03 inHg

4:00 PM

Overcast

72° 💧 0.001 in 💨 9 mph H 53%30.03 inHg

5:00 PM

Mostly cloudy

71° 💧 0.002 in 💨 7 mph H 58%30.03 inHg

6:00 PM

Mostly cloudy

69° 💧 None 💨 7 mph H 63%30.06 inHg

7:00 PM

Sunny

67° 💧 None 💨 7 mph H 67%30.06 inHg

8:00 PM

Clear night

66° 💧 None 💨 5 mph H 67%30.09 inHg

9:00 PM

Clear night

65° 💧 None 💨 5 mph H 65%30.12 inHg

10:00 PM

Clear night

64° 💧 None 💨 5 mph H 64%30.15 inHg

11:00 PM

Mostly clear night

63° 💧 None 💨 4 mph H 69%30.15 inHg

Monday

12:00 AM

Clear night

62° 💧 None 💨 3 mph H 73%30.15 inHg

1:00 AM

Clear night

61° 💧 None 💨 3 mph H 75%30.15 inHg

2:00 AM

Clear night

60° 💧 None 💨 3 mph H 76%30.18 inHg

3:00 AM

Clear night

60° 💧 None 💨 4 mph H 78%30.18 inHg

4:00 AM

Clear night

59° 💧 None 💨 4 mph H 79%30.18 inHg

5:00 AM

Clear night

58° 💧 None 💨 3 mph H 80%30.21 inHg

6:00 AM

Clear night

57° 💧 None 💨 3 mph H 82%30.21 inHg

7:00 AM

Sunny

58° 💧 None 💨 3 mph H 80%30.24 inHg

8:00 AM

Sunny

62° 💧 None 💨 5 mph H 66%30.24 inHg

9:00 AM

Sunny

65° 💧 None 💨 6 mph H 56%30.24 inHg

10:00 AM

Sunny

68° 💧 None 💨 9 mph H 44%30.24 inHg

11:00 AM

Sunny

70° 💧 None 💨 8 mph H 41%30.24 inHg

12:00 PM

Partly cloudy

72° 💧 None 💨 8 mph H 38%30.24 inHg

1:00 PM

Overcast

73° 💧 None 💨 7 mph H 35%30.21 inHg

2:00 PM

Overcast

75° 💧 None 💨 7 mph H 33%30.18 inHg

3:00 PM

Overcast

75° 💧 None 💨 8 mph H 32%30.15 inHg

4:00 PM

Overcast

75° 💧 None 💨 8 mph H 32%30.12 inHg

5:00 PM

Mostly cloudy

74° 💧 None 💨 9 mph H 32%30.09 inHg

6:00 PM

Mostly cloudy

73° 💧 None 💨 9 mph H 34%30.09 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 8 mph H 38%30.06 inHg

Tuesday

4:00 AM

Clear night

70° 💧 None 💨 14 mph H 66%29.97 inHg

7:00 AM

Partly cloudy

71° 💧 None 💨 13 mph H 75%30.00 inHg

10:00 AM

Partly cloudy

79° 💧 None 💨 11 mph H 70%30.03 inHg

1:00 PM

Overcast

87° 💧 None 💨 14 mph H 54%30.00 inHg

4:00 PM

Mostly sunny

88° 💧 None 💨 9 mph H 52%30.00 inHg

7:00 PM

Light rain

76° 💧 None 💨 7 mph H 89%30.06 inHg

10:00 PM

Light rain

74° 💧 None 💨 2 mph H 96%30.12 inHg

Wednesday

1:00 AM

Moderate rain

72° 💧 None 💨 3 mph H 99%30.18 inHg

4:00 AM

Moderate rain

71° 💧 None 💨 2 mph H 99%30.18 inHg

7:00 AM

Light rain

69° 💧 None 💨 7 mph H 98%30.21 inHg

10:00 AM

Overcast

72° 💧 None 💨 4 mph H 93%30.24 inHg

1:00 PM

Overcast

75° 💧 None 💨 5 mph H 86%30.21 inHg

4:00 PM

Overcast

74° 💧 None 💨 7 mph H 87%30.21 inHg

7:00 PM

Overcast

71° 💧 None 💨 6 mph H 93%30.18 inHg

10:00 PM

Overcast night

71° 💧 None 💨 5 mph H 97%30.21 inHg

Thursday

1:00 AM

Overcast night

70° 💧 None 💨 4 mph H 99%30.18 inHg

4:00 AM

Moderate rain

69° 💧 None 💨 5 mph H 99%30.18 inHg

7:00 AM

Overcast

69° 💧 None 💨 8 mph H 99%30.21 inHg

10:00 AM

Overcast

72° 💧 None 💨 6 mph H 90%30.24 inHg

1:00 PM

Overcast

75° 💧 None 💨 5 mph H 85%30.21 inHg

4:00 PM

Overcast

70° 💧 None 💨 9 mph H 90%30.18 inHg

7:00 PM

Overcast night

67° 💧 None 💨 8 mph H 92%30.18 inHg

10:00 PM

Light rain

67° 💧 None 💨 6 mph H 92%30.21 inHg

Friday

1:00 AM

Overcast night

68° 💧 None 💨 4 mph H 96%30.18 inHg

7:00 AM

Sunny

69° 💧 None 💨 5 mph H 95%30.15 inHg

1:00 PM

Overcast

69° 💧 None 💨 5 mph H 99%30.12 inHg

7:00 PM

Moderate rain

79° 💧 None 💨 8 mph H 80%30.06 inHg

Saturday

1:00 AM

Clear night

80° 💧 None 💨 4 mph H 82%29.91 inHg

7:00 AM

Sunny

74° 💧 None 💨 6 mph H 86%29.88 inHg

1:00 PM

Mostly cloudy

71° 💧 None 💨 8 mph H 71%29.85 inHg

7:00 PM

Moderate rain

73° 💧 None 💨 10 mph H 92%29.85 inHg

Sunday

1:00 AM

Mostly clear night

71° 💧 None 💨 9 mph H 76%29.85 inHg

7:00 AM

Partly cloudy

63° 💧 None 💨 11 mph H 87%29.94 inHg

1:00 PM

Mostly sunny

59° 💧 None 💨 9 mph H 84%30.03 inHg

7:00 PM

Mostly clear night

68° 💧 None 💨 12 mph H 59%30.09 inHg

Monday

1:00 AM

Clear night

60° 💧 None 💨 10 mph H 72%30.12 inHg

7:00 AM

Sunny

57° 💧 None 💨 6 mph H 77%30.15 inHg

1:00 PM

Sunny

52° 💧 None 💨 4 mph H 86%30.18 inHg

7:00 PM

Overcast night

62° 💧 None 💨 8 mph H 54%30.15 inHg

Tuesday

1:00 AM

Overcast night

57° 💧 None 💨 5 mph H 71%30.09 inHg

7:00 AM

Overcast

56° 💧 None 💨 4 mph H 86%30.09 inHg

1:00 PM

Sunny

50° 💧 None 💨 3 mph H 86%30.09 inHg

7:00 PM

Clear night

69° 💧 None 💨 1 mph H 50%30.09 inHg

Wednesday

1:00 AM

Clear night

65° 💧 None 💨 1 mph H 62%30.06 inHg

7:00 AM

Sunny

55° 💧 None 💨 3 mph H 86%30.12 inHg

1:00 PM

Sunny

52° 💧 None 💨 3 mph H 90%30.18 inHg

7:00 PM

Clear night

73° 💧 None 💨 3 mph H 46%30.18 inHg

Thursday

1:00 AM

Clear night

65° 💧 None 💨 6 mph H 66%30.18 inHg

7:00 AM

Sunny

60° 💧 None 💨 5 mph H 86%30.18 inHg

1:00 PM

Sunny

55° 💧 None 💨 5 mph H 90%30.24 inHg

7:00 PM

Clear night

76° 💧 None 💨 5 mph H 48%30.24 inHg

Friday

1:00 AM

Clear night

67° 💧 None 💨 7 mph H 67%30.24 inHg

7:00 AM

Sunny

62° 💧 None 💨 6 mph H 88%30.24 inHg

1:00 PM

Sunny

57° 💧 None 💨 4 mph H 89%30.27 inHg

7:00 PM

Clear night

76° 💧 None 💨 5 mph H 47%30.24 inHg

Saturday

1:00 AM

Clear night

68° 💧 None 💨 6 mph H 63%30.18 inHg

7:00 AM

Sunny

62° 💧 None 💨 3 mph H 85%30.18 inHg

1:00 PM

Sunny

58° 💧 None 💨 4 mph H 91%30.12 inHg

7:00 PM

Clear night

77° 💧 None 💨 4 mph H 49%30.06 inHg

Sunday

1:00 AM

Mostly cloudy night

74° 💧 None 💨 7 mph H 58%29.97 inHg

In South Chicago Heights and, more broadly, across the state of Illinois: The afternoon will be mostly sunny with just a few clouds scattered across the sky. Temperatures will remain warm, ranging from the mid-70s to the high 80s. Expect daytime highs around 86 degrees, making for a hot and bright afternoon. Winds will be light, coming from the northwest at speeds up to 8 mph, with occasional gusts reaching 12 mph. No rain is expected, so outdoor plans should be comfortable and dry. As the day progresses, the weather will stay stable with clear skies and mild breezes. It’s a good time to enjoy outdoor activities, but remember to stay hydrated and wear sun protection as the temperatures stay on the warmer side. Overall, it looks like a pleasant, warm afternoon ahead.

15-Day Weather Outlook for South Chicago Heights

TomorrowTomorrow

Mostly sunny 82°/65° 💧 None 💨 9 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 75°/57° 💧 None 💨 9 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 88°/70° 💧 0.096 in 💨 14 mph

Wednesday, Sep 16Wed Sep 16

Moderate rain 76°/69° 💧 0.792 in 💨 7 mph

Thursday, Sep 17Thu Sep 17

Moderate rain 75°/69° 💧 0.408 in 💨 9 mph

Friday, Sep 18Fri Sep 18

Light rain 69°/67° 💧 0.021 in 💨 8 mph

Saturday, Sep 19Sat Sep 19

Moderate rain 80°/71° 💧 0.124 in 💨 8 mph

Sunday, Sep 20Sun Sep 20

Moderate rain 73°/59° 💧 0.295 in 💨 11 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 68°/52° 💧 0.001 in 💨 12 mph

Tuesday, Sep 22Tue Sep 22

Overcast 62°/50° 💧 None 💨 8 mph

Wednesday, Sep 23Wed Sep 23

Sunny 69°/52° 💧 None 💨 3 mph

Thursday, Sep 24Thu Sep 24

Sunny 73°/55° 💧 None 💨 6 mph

Friday, Sep 25Fri Sep 25

Sunny 76°/57° 💧 None 💨 7 mph

Saturday, Sep 26Sat Sep 26

Sunny 76°/58° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Mostly cloudy 77°/74° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in South Chicago Heights

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for South Chicago Heights

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 1:00 PM

PM2.5 Fine particles Fair 10,2µg/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 10,6µg/m³

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

O₃ Ozone Fair 87,7µg/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 acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in South Chicago 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 6,8High 🙂Fair

Tomorrow UV 6,3High 🙂Fair

Monday UV 3,3Moderate 🙂Fair

Tuesday UV 8,0Very high 🙂Fair

Wednesday UV 5,0Moderate 🙂Fair

Thursday UV 4,0Moderate —Unavailable

Friday UV 7,0High —Unavailable

Hourly UV index today

1:00 PMUV 6,8 2:00 PMUV 6,1 3:00 PMUV 4,5 4:00 PMUV 2,7 5:00 PMUV 1,2 6:00 PMUV 0,3 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.

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

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 South Chicago Heights

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · SOUTH CHICAGO HEIGHTS, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 2:00 AM–3:00 AM.

98/100Best-hour score

BEST TIME TONIGHT 2:00 AM–3:00 AM Astronomical darkness: 8:40 PM–4:54 AM

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

☾ Moonlight 2% New Moon · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 61° high at the best hour.

✦ Estimated visible meteors 2–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min76%

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

Explore current conditions and forecasts for other locations.

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Forecast data for South Chicago Heights were last refreshed today at 12:57 PM. The current forecast period extends through 14/09/2026 at 10:00 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.