What is the weather in Grant Park right now?

Current weather in Grant Park is scattered clouds.

Where can I find the hourly weather forecast for Grant Park?

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

Is the weather forecast for Grant Park updated regularly?

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

Now · 7:44 PM

Grant Park Weather & Hourly Forecast

United States · Illinois · 60940

68°F

Partly cloudy

Feels like: 68°F

💧 Humidity 81% 🌡 Pressure 30.09 inHg 💨 Wind 8 mph 👁 Visibility 18.2 mi ☁ Clouds 52% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Grant Park

Today

8:00 PM

Partly cloudy night

68° 💧 None 💨 8 mph H 81%30.09 inHg

11:00 PM

Mostly cloudy night

66° 💧 None 💨 6 mph H 82%30.12 inHg

Tomorrow

2:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 81%30.12 inHg

5:00 AM

Partly cloudy night

60° 💧 None 💨 4 mph H 90%30.15 inHg

8:00 AM

Sunny

64° 💧 None 💨 6 mph H 86%30.18 inHg

11:00 AM

Sunny

74° 💧 None 💨 9 mph H 63%30.18 inHg

2:00 PM

Sunny

78° 💧 None 💨 7 mph H 55%30.15 inHg

5:00 PM

Sunny

78° 💧 None 💨 8 mph H 55%30.12 inHg

8:00 PM

Partly cloudy night

70° 💧 None 💨 7 mph H 69%30.12 inHg

11:00 PM

Clear night

66° 💧 None 💨 6 mph H 76%30.15 inHg

Tuesday

2:00 AM

Mostly cloudy night

64° 💧 None 💨 8 mph H 77%30.12 inHg

5:00 AM

Overcast night

62° 💧 None 💨 6 mph H 80%30.12 inHg

8:00 AM

Overcast

65° 💧 None 💨 6 mph H 82%30.15 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 5 mph H 69%30.15 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 8 mph H 45%30.06 inHg

5:00 PM

Sunny

85° 💧 None 💨 5 mph H 47%30.03 inHg

Today

8:00 PM

Partly cloudy night

68° 💧 None 💨 8 mph H 81%30.09 inHg

9:00 PM

Partly cloudy night

67° 💧 None 💨 6 mph H 84%30.09 inHg

10:00 PM

Mostly cloudy night

66° 💧 None 💨 6 mph H 85%30.12 inHg

11:00 PM

Mostly cloudy night

66° 💧 None 💨 6 mph H 82%30.12 inHg

Tomorrow

12:00 AM

Mostly cloudy night

65° 💧 None 💨 6 mph H 80%30.12 inHg

1:00 AM

Mostly cloudy night

64° 💧 None 💨 7 mph H 81%30.12 inHg

2:00 AM

Mostly clear night

63° 💧 None 💨 7 mph H 81%30.12 inHg

3:00 AM

Mostly clear night

62° 💧 None 💨 6 mph H 85%30.12 inHg

4:00 AM

Mostly cloudy night

61° 💧 None 💨 5 mph H 88%30.15 inHg

5:00 AM

Partly cloudy night

60° 💧 None 💨 4 mph H 90%30.15 inHg

6:00 AM

Mostly clear night

59° 💧 None 💨 4 mph H 92%30.18 inHg

7:00 AM

Sunny

60° 💧 None 💨 5 mph H 91%30.18 inHg

8:00 AM

Sunny

64° 💧 None 💨 6 mph H 86%30.18 inHg

9:00 AM

Sunny

68° 💧 None 💨 6 mph H 81%30.18 inHg

10:00 AM

Sunny

71° 💧 None 💨 6 mph H 74%30.18 inHg

11:00 AM

Sunny

74° 💧 None 💨 9 mph H 63%30.18 inHg

12:00 PM

Sunny

76° 💧 None 💨 9 mph H 58%30.18 inHg

1:00 PM

Sunny

77° 💧 None 💨 7 mph H 56%30.15 inHg

2:00 PM

Sunny

78° 💧 None 💨 7 mph H 55%30.15 inHg

3:00 PM

Mostly sunny

79° 💧 None 💨 7 mph H 54%30.12 inHg

4:00 PM

Sunny

78° 💧 None 💨 8 mph H 54%30.12 inHg

5:00 PM

Sunny

78° 💧 None 💨 8 mph H 55%30.12 inHg

6:00 PM

Mostly sunny

76° 💧 None 💨 7 mph H 62%30.12 inHg

7:00 PM

Partly cloudy

72° 💧 None 💨 7 mph H 68%30.12 inHg

8:00 PM

Partly cloudy night

70° 💧 None 💨 7 mph H 69%30.12 inHg

9:00 PM

Mostly clear night

68° 💧 None 💨 6 mph H 71%30.15 inHg

10:00 PM

Mostly clear night

67° 💧 None 💨 6 mph H 74%30.15 inHg

11:00 PM

Clear night

66° 💧 None 💨 6 mph H 76%30.15 inHg

Tuesday

12:00 AM

Clear night

65° 💧 None 💨 8 mph H 78%30.15 inHg

1:00 AM

Mostly cloudy night

65° 💧 None 💨 8 mph H 77%30.15 inHg

2:00 AM

Mostly cloudy night

64° 💧 None 💨 8 mph H 77%30.12 inHg

3:00 AM

Overcast night

63° 💧 None 💨 7 mph H 78%30.12 inHg

4:00 AM

Overcast night

63° 💧 None 💨 7 mph H 78%30.12 inHg

5:00 AM

Overcast night

62° 💧 None 💨 6 mph H 80%30.12 inHg

6:00 AM

Overcast night

61° 💧 None 💨 4 mph H 83%30.12 inHg

7:00 AM

Mostly cloudy

62° 💧 None 💨 5 mph H 84%30.15 inHg

8:00 AM

Overcast

65° 💧 None 💨 6 mph H 82%30.15 inHg

9:00 AM

Overcast

69° 💧 None 💨 5 mph H 77%30.15 inHg

10:00 AM

Overcast

73° 💧 None 💨 5 mph H 74%30.15 inHg

11:00 AM

Mostly cloudy

77° 💧 None 💨 5 mph H 69%30.15 inHg

12:00 PM

Mostly cloudy

80° 💧 None 💨 6 mph H 64%30.12 inHg

1:00 PM

Mostly cloudy

83° 💧 None 💨 7 mph H 52%30.09 inHg

2:00 PM

Mostly sunny

85° 💧 None 💨 8 mph H 45%30.06 inHg

3:00 PM

Mostly sunny

86° 💧 None 💨 8 mph H 44%30.06 inHg

4:00 PM

Partly cloudy

86° 💧 None 💨 7 mph H 44%30.03 inHg

5:00 PM

Sunny

85° 💧 None 💨 5 mph H 47%30.03 inHg

6:00 PM

Sunny

83° 💧 None 💨 4 mph H 58%30.03 inHg

7:00 PM

Sunny

78° 💧 None 💨 5 mph H 64%30.03 inHg

8:00 PM

Mostly clear night

76° 💧 None 💨 6 mph H 62%30.03 inHg

9:00 PM

Clear night

75° 💧 None 💨 7 mph H 60%30.03 inHg

10:00 PM

Clear night

74° 💧 None 💨 8 mph H 61%30.03 inHg

11:00 PM

Clear night

73° 💧 None 💨 8 mph H 61%30.03 inHg

Wednesday

12:00 AM

Mostly cloudy night

72° 💧 None 💨 7 mph H 64%30.03 inHg

1:00 AM

Mostly cloudy night

72° 💧 None 💨 8 mph H 66%30.03 inHg

2:00 AM

Overcast night

72° 💧 None 💨 9 mph H 67%30.00 inHg

3:00 AM

Mostly cloudy night

72° 💧 None 💨 10 mph H 66%29.97 inHg

4:00 AM

Mostly cloudy night

73° 💧 None 💨 10 mph H 67%29.97 inHg

5:00 AM

Mostly cloudy night

73° 💧 None 💨 9 mph H 67%30.00 inHg

6:00 AM

Mostly cloudy night

73° 💧 None 💨 10 mph H 66%30.00 inHg

7:00 AM

Mostly cloudy

74° 💧 None 💨 9 mph H 66%30.00 inHg

4:00 PM

Partly cloudy

83° 💧 None 💨 9 mph H 69%29.94 inHg

7:00 PM

Overcast

78° 💧 None 💨 7 mph H 81%29.94 inHg

10:00 PM

Overcast night

74° 💧 None 💨 4 mph H 94%29.97 inHg

Thursday

1:00 AM

Mostly cloudy night

70° 💧 None 💨 4 mph H 98%29.97 inHg

4:00 AM

Overcast night

68° 💧 None 💨 6 mph H 96%29.97 inHg

7:00 AM

Overcast

65° 💧 None 💨 7 mph H 92%30.00 inHg

10:00 AM

Mostly sunny

73° 💧 None 💨 7 mph H 66%30.00 inHg

1:00 PM

Sunny

77° 💧 None 💨 9 mph H 47%30.00 inHg

4:00 PM

Sunny

77° 💧 None 💨 9 mph H 45%29.94 inHg

7:00 PM

Sunny

71° 💧 None 💨 3 mph H 64%29.94 inHg

10:00 PM

Clear night

64° 💧 None 💨 4 mph H 80%30.00 inHg

Friday

1:00 AM

Clear night

61° 💧 None 💨 4 mph H 87%30.00 inHg

4:00 AM

Clear night

58° 💧 None 💨 4 mph H 91%30.00 inHg

7:00 AM

Sunny

58° 💧 None 💨 4 mph H 90%30.00 inHg

10:00 AM

Sunny

71° 💧 None 💨 6 mph H 63%29.97 inHg

1:00 PM

Sunny

77° 💧 None 💨 6 mph H 49%29.91 inHg

4:00 PM

Sunny

81° 💧 None 💨 7 mph H 41%29.85 inHg

7:00 PM

Sunny

73° 💧 None 💨 4 mph H 61%29.83 inHg

10:00 PM

Clear night

68° 💧 None 💨 7 mph H 72%29.85 inHg

Saturday

1:00 AM

Clear night

66° 💧 None 💨 8 mph H 81%29.83 inHg

4:00 AM

Partly cloudy night

66° 💧 None 💨 7 mph H 81%29.80 inHg

7:00 AM

Mostly cloudy

67° 💧 None 💨 8 mph H 80%29.83 inHg

10:00 AM

Mostly sunny

78° 💧 None 💨 7 mph H 69%29.85 inHg

1:00 PM

Mostly sunny

86° 💧 None 💨 10 mph H 57%29.83 inHg

7:00 PM

Sunny

84° 💧 None 💨 8 mph H 51%29.88 inHg

Sunday

1:00 AM

Clear night

79° 💧 None 💨 6 mph H 67%29.91 inHg

7:00 AM

Mostly sunny

69° 💧 None 💨 4 mph H 94%30.00 inHg

1:00 PM

Mostly cloudy

66° 💧 None 💨 4 mph H 96%30.06 inHg

7:00 PM

Mostly cloudy

85° 💧 None 💨 3 mph H 54%30.03 inHg

Monday

1:00 AM

Overcast night

76° 💧 None 💨 8 mph H 72%30.00 inHg

7:00 AM

Overcast

71° 💧 None 💨 5 mph H 87%30.03 inHg

1:00 PM

Partly cloudy

70° 💧 None 💨 7 mph H 95%30.03 inHg

7:00 PM

Overcast

89° 💧 None 💨 2 mph H 55%29.97 inHg

Tuesday

1:00 AM

Mostly clear night

81° 💧 None 💨 10 mph H 75%29.88 inHg

7:00 AM

Sunny

82° 💧 None 💨 13 mph H 60%29.88 inHg

1:00 PM

Overcast

78° 💧 None 💨 12 mph H 62%29.91 inHg

7:00 PM

Overcast

77° 💧 None 💨 10 mph H 60%30.03 inHg

Wednesday

1:00 AM

Partly cloudy night

72° 💧 None 💨 8 mph H 53%30.12 inHg

7:00 AM

Partly cloudy

63° 💧 None 💨 4 mph H 78%30.24 inHg

1:00 PM

Sunny

58° 💧 None 💨 3 mph H 92%30.33 inHg

7:00 PM

Mostly clear night

76° 💧 None 💨 7 mph H 47%30.33 inHg

Thursday

1:00 AM

Mostly cloudy night

69° 💧 None 💨 8 mph H 62%30.30 inHg

7:00 AM

Sunny

63° 💧 None 💨 7 mph H 85%30.36 inHg

1:00 PM

Sunny

58° 💧 None 💨 5 mph H 89%30.39 inHg

7:00 PM

Clear night

76° 💧 None 💨 7 mph H 49%30.36 inHg

Friday

1:00 AM

Mostly clear night

68° 💧 None 💨 7 mph H 55%30.27 inHg

7:00 AM

Partly cloudy

62° 💧 None 💨 5 mph H 83%30.30 inHg

1:00 PM

Sunny

61° 💧 None 💨 9 mph H 86%30.27 inHg

7:00 PM

Partly cloudy night

68° 💧 None 💨 19 mph H 56%30.30 inHg

Saturday

1:00 AM

Mostly clear night

59° 💧 None 💨 16 mph H 66%30.33 inHg

7:00 AM

Overcast

56° 💧 None 💨 9 mph H 55%30.39 inHg

1:00 PM

Light rain

51° 💧 None 💨 3 mph H 60%30.42 inHg

7:00 PM

Overcast night

61° 💧 None 💨 13 mph H 44%30.39 inHg

Sunday

1:00 AM

Clear night

55° 💧 None 💨 9 mph H 57%30.36 inHg

7:00 AM

Sunny

50° 💧 None 💨 5 mph H 70%30.36 inHg

1:00 PM

Sunny

45° 💧 None 💨 4 mph H 80%30.42 inHg

7:00 PM

Clear night

63° 💧 None 💨 7 mph H 39%30.36 inHg

Monday

1:00 AM

Clear night

60° 💧 None 💨 5 mph H 50%30.27 inHg

7:00 AM

Sunny

51° 💧 None 💨 5 mph H 69%30.30 inHg

1:00 PM

Sunny

46° 💧 None 💨 6 mph H 84%30.36 inHg

In Grant Park and, more broadly, across the state of Illinois: The evening will feature a mix of sun and clouds, with temperatures remaining mild to warm, ranging from 76 to 78 degrees Fahrenheit. Winds will be light and coming from the east, with speeds up to 8 mph, occasionally gusting to 18 mph. No precipitation is expected during this time, making for a relatively calm and pleasant evening. The weather should remain stable through the next few hours, with comfortable conditions and no significant weather disturbances anticipated. Overall, it’s a good evening for outdoor activities or relaxing outside. Temperatures will gradually stay steady, and the breeze will provide a gentle refreshment as the night progresses.

15-Day Weather Outlook for Grant Park

TomorrowTomorrow

Partly cloudy 79°/59° 💧 None 💨 9 mph

Tuesday, Sep 8Tue Sep 8

Partly cloudy 86°/61° 💧 None 💨 8 mph

Wednesday, Sep 9Wed Sep 9

Partly cloudy 84°/72° 💧 0.091 in 💨 11 mph

Thursday, Sep 10Thu Sep 10

Overcast 78°/66° 💧 0.001 in 💨 9 mph

Friday, Sep 11Fri Sep 11

Mostly sunny 79°/57° 💧 None 💨 7 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 84°/61° 💧 None 💨 8 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 85°/66° 💧 None 💨 6 mph

Monday, Sep 14Mon Sep 14

Overcast 89°/70° 💧 0.007 in 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 82°/77° 💧 0.062 in 💨 13 mph

Wednesday, Sep 16Wed Sep 16

Partly cloudy 76°/58° 💧 None 💨 8 mph

Thursday, Sep 17Thu Sep 17

Mostly cloudy 76°/58° 💧 None 💨 8 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 68°/61° 💧 0.015 in 💨 19 mph

Saturday, Sep 19Sat Sep 19

Light rain 61°/51° 💧 0.019 in 💨 16 mph

Sunday, Sep 20Sun Sep 20

Sunny 63°/45° 💧 None 💨 9 mph

Monday, Sep 21Mon Sep 21

Sunny 60°/46° 💧 0.001 in 💨 6 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Grant Park

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Grant Park

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 8:00 PM

PM2.5 Fine particles Good 4,2µg/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 4,5µg/m³

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

O₃ Ozone Fair 93,4µg/m³

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

NO₂ Nitrogen dioxide Good 2,2µg/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 Grant Park

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 7,5High 🙂Fair

Tomorrow UV 7,2High 🙂Fair

Tuesday UV 7,1High 😐Moderate

Wednesday UV 4,4Moderate 🙂Fair

Thursday UV 6,4High 🙂Fair

Friday UV 6,0High —Unavailable

Saturday UV 7,0High —Unavailable

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 Grant Park

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · GRANT PARK, ILLINOIS

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

88/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:51 PM–4:47 AM

☁ Cloud cover 16% Real hourly forecast for the best viewing hour.

☾ Moonlight 21% Waning Crescent · Moon about 8° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 68° 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 min70%

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 Grant Park were last refreshed today at 7:44 PM. The current forecast period extends through 08/09/2026 at 5:00 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.