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Grant Park IL Weather - Partly Cloudy - 71°F
Partly Cloudy
71°F
Updated 1:30 pm
Feels Like 64°F
Humidity 56%
Wind N 0 mph
Barometer  30.13 in
Dew Point 55°F
Grant Park IL Weather - Partly Cloudy - 22°C
Partly Cloudy
22°C
Updated 1:30 pm
Feels Like 18°C
Humidity 56%
Wind N 0 km/h
Barometer  102 kPa
Dew Point 13°C
Grant Park, IL Weather and Current Conditionsgrant park il weather forecast

Grant Park, IL Weather Forecast

Grant Park Illinois WeatherGrant Park, Illinois Weather Weather Forecast
14 day API forecast for Grant Park, Illinois. Note. The 7-day weather forecast for Grant Park, IL is the most reliable and accurate forecast. This model should only be used as a likely scenario. It is difficult to predict weather more than 7 days in advance.
Grant Park, IL Weather Forecast Dated: 130 PM Fri Oct 09 2026
Expect a cool pattern with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and no major pressure swings will dominate.

Friday, October 9, 2026

Mid-Morning
Grant Park Weather - 2026-10-09 - Morning - Overcast
61°F 16°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-09 - Afternoon - Overcast
70°F 21°C
Overcast
Early-Evening
Grant Park Weather - 2026-10-09 - Evening - Scattered Showers
63°F 17°C
Scattered Showers
Pleasant near 70°F 21°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds turning from the SSE to the ESE at 9 mph 14 km/h.

Saturday, October 10, 2026

Mid-Morning
Grant Park Weather - 2026-10-10 - Morning - Overcast
65°F 18°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-10 - Afternoon - Overcast
77°F 25°C
Overcast
Early-Evening
Grant Park Weather - 2026-10-10 - Evening - Overcast
67°F 20°C
Overcast
Comfortable with temperatures reaching 77°F 25°C, overcast throughout the day, with steady humidity and steady pressure. Winds switching from the SSE to the SE at 9 mph 14 km/h. Gusts up to 20 mph 32 km/h.

Sunday, October 11, 2026

Mid-Morning
Grant Park Weather - 2026-10-11 - Morning - Overcast
63°F 17°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-11 - Afternoon - Partly Cloudy
71°F 22°C
Partly Cloudy
Early-Evening
Grant Park Weather - 2026-10-11 - Evening - Sunny
65°F 19°C
Sunny
Enjoyable around 71°F 22°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure.

Monday, October 12, 2026

Mid-Morning
Grant Park Weather - 2026-10-12 - Morning - Cloudy
68°F 20°C
Cloudy
Mid-Afternoon
Grant Park Weather - 2026-10-12 - Afternoon - Cloudy
86°F 30°C
Cloudy
Early-Evening
Grant Park Weather - 2026-10-12 - Evening - Sunny
77°F 25°C
Sunny
Warm temperatures up to 86°F 30°C, overcast in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and barometric pressure falling. Winds SSW at 17 mph 27 km/h. Gusts up to 28 mph 45 km/h.

Tuesday, October 13, 2026

Mid-Morning
Grant Park Weather - 2026-10-13 - Morning - Sunny
68°F 20°C
Sunny
Mid-Afternoon
Grant Park Weather - 2026-10-13 - Afternoon - Sunny
72°F 22°C
Sunny
Early-Evening
Grant Park Weather - 2026-10-13 - Evening - Sunny
62°F 17°C
Sunny
Mild with a high of 72°F 22°C, sunny throughout the day, with lower humidity and barometric pressure rising. Winds swinging from the NW to the N at 9 mph 14 km/h.

Wednesday, October 14, 2026

Mid-Morning
Grant Park Weather - 2026-10-14 - Morning - Sunny
56°F 14°C
Sunny
Mid-Afternoon
Grant Park Weather - 2026-10-14 - Afternoon - Partly Cloudy
62°F 17°C
Partly Cloudy
Early-Evening
Grant Park Weather - 2026-10-14 - Evening - Partly Cloudy
54°F 13°C
Partly Cloudy
Mildly cool near 62°F 17°C, partly cloudy through the afternoon, turning cloudy this evening, with steady humidity and steady pressure. Winds blowing from the ENE at 8 mph 13 km/h.

Thursday, October 15, 2026

Mid-Morning
Grant Park Weather - 2026-10-15 - Morning - Overcast
55°F 13°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-15 - Afternoon - Scattered Showers
54°F 12°C
Scattered Showers
Early-Evening
Grant Park Weather - 2026-10-15 - Evening - Heavy Rain
54°F 13°C
Heavy Rain
Chilly near 54°F 12°C, periods of heavy rain and gusty conditions, with increasing humidity and barometric pressure falling. Winds turning from the SE to the SSE at 12 mph 19 km/h. Gusts up to 28 mph 45 km/h.

Friday, October 16, 2026

Mid-Morning
Grant Park Weather - 2026-10-16 - Morning - Overcast
54°F 12°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-16 - Afternoon - Sunny
54°F 12°C
Sunny
Early-Evening
Grant Park Weather - 2026-10-16 - Evening - Sunny
47°F 9°C
Sunny
Crisp with a high near 54°F 12°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure rising. Winds switching from the WNW to the W at 23 mph 37 km/h. Gusts up to 39 mph 63 km/h.

Saturday, October 17, 2026

Mid-Morning
Grant Park Weather - 2026-10-17 - Morning - Partly Cloudy
39°F 4°C
Partly Cloudy
Mid-Afternoon
Grant Park Weather - 2026-10-17 - Afternoon - Overcast
46°F 8°C
Overcast
Early-Evening
Grant Park Weather - 2026-10-17 - Evening - Cloudy
40°F 5°C
Cloudy
Brisk around 46°F 8°C, cloudy through the afternoon, turning sunny this evening, with steady humidity and barometric pressure rising. Winds tapering down from NW 21 mph 34 km/h to NW 9 mph 14 km/h.

Sunday, October 18, 2026

Mid-Morning
Grant Park Weather - 2026-10-18 - Morning - Sunny
40°F 4°C
Sunny
Mid-Afternoon
Grant Park Weather - 2026-10-18 - Afternoon - Cloudy
51°F 11°C
Cloudy
Early-Evening
Grant Park Weather - 2026-10-18 - Evening - Sunny
46°F 8°C
Sunny
Cool and brisk at 51°F 11°C, partly cloudy through the afternoon, turning sunny this evening, with steady humidity and barometric pressure falling. Winds swinging from the SW to the S at 8 mph 12 km/h.

Monday, October 19, 2026

Mid-Morning
Grant Park Weather - 2026-10-19 - Morning - Cloudy
46°F 8°C
Cloudy
Mid-Afternoon
Grant Park Weather - 2026-10-19 - Afternoon - Overcast
61°F 16°C
Overcast
Early-Evening
Grant Park Weather - 2026-10-19 - Evening - Sunny
53°F 12°C
Sunny
Comfortable at 61°F 16°C, overcast in the morning, partly cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds shifting from the SSW to the WSW at 7 mph 11 km/h.

Tuesday, October 20, 2026

Mid-Morning
Grant Park Weather - 2026-10-20 - Morning - Sunny
52°F 11°C
Sunny
Mid-Afternoon
Grant Park Weather - 2026-10-20 - Afternoon - Sunny
66°F 19°C
Sunny
Early-Evening
Grant Park Weather - 2026-10-20 - Evening - Sunny
58°F 14°C
Sunny
Cool with a high near 66°F 19°C, sunny through the afternoon, turning cloudy this evening, with lower humidity and steady pressure.

Wednesday, October 21, 2026

Mid-Morning
Grant Park Weather - 2026-10-21 - Morning - Overcast
56°F 14°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-21 - Afternoon - Overcast
69°F 20°C
Overcast
Early-Evening
Grant Park Weather - 2026-10-21 - Evening - Partly Cloudy
61°F 16°C
Partly Cloudy
Enjoyable around 69°F 20°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and barometric pressure falling. Winds blowing from the SSW at 12 mph 19 km/h.

Thursday, October 22, 2026

Mid-Morning
Grant Park Weather - 2026-10-22 - Morning - Overcast
57°F 14°C
Overcast
Mid-Afternoon
Grant Park Weather - 2026-10-22 - Afternoon - Light Rain
60°F 16°C
Light Rain
Early-Evening
Grant Park Weather - 2026-10-22 - Evening - Scattered Showers
59°F 15°C
Scattered Showers
Mildly cool near 60°F 16°C, scattered downpours possible, with increasing humidity and barometric pressure falling. Winds SSW at 11 mph 18 km/h. Gusts up to 34 mph 54 km/h.

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Weather by the Numbers

Fri, 9th
Grant Park IL Weather - Friday, Oct 9, 2026 - Overcast
Hi: 72°F 22°C
Lo: 54°F 12°C
Sunrise 06:56 AM
Sunset 06:19 PM
Wind S 7 mph12 km/h
Dew Point 45°F7°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 11% *
Humidity 48%
Sat, 10th
Grant Park IL Weather - Saturday, Oct 10, 2026 - Overcast
Hi: 77°F 25°C
Lo: 59°F 15°C
Sunrise 06:57 AM
Sunset 06:18 PM
Wind S 14 mph22 km/h
Dew Point 47°F8°C
uv Index 4
Barometric Pressure 30.12 in1020 mb
POP 10% *
Humidity 37%
Sun, 11th
Grant Park IL Weather - Sunday, Oct 11, 2026 - Overcast
Hi: 72°F 22°C
Lo: 58°F 14°C
Sunrise 06:58 AM
Sunset 06:16 PM
Wind ESE 1 mph2 km/h
Dew Point 58°F14°C
uv Index 3
Barometric Pressure 30 in1016 mb
POP 18% *
Humidity 70%
Mon, 12th
Grant Park IL Weather - Monday, Oct 12, 2026 - Overcast
Hi: 86°F 30°C
Lo: 60°F 16°C
Sunrise 06:59 AM
Sunset 06:14 PM
Wind SSW 14 mph22 km/h
Dew Point 56°F13°C
uv Index 4
Barometric Pressure 29.85 in1011 mb
POP 9% *
Humidity 42%
Tue, 13th
Grant Park IL Weather - Tuesday, Oct 13, 2026 - Sunny
Hi: 73°F 23°C
Lo: 56°F 13°C
Sunrise 07:00 AM
Sunset 06:13 PM
Wind NW 14 mph22 km/h
Dew Point 56°F13°C
uv Index 6
Barometric Pressure 29.91 in1013 mb
POP 3% *
Humidity 59%
Wed, 14th
Grant Park IL Weather - Wednesday, Oct 14, 2026 - Partly Cloudy
Hi: 63°F 17°C
Lo: 50°F 10°C
Sunrise 07:02 AM
Sunset 06:11 PM
Wind ENE 8 mph13 km/h
Dew Point 46°F8°C
uv Index 5
Barometric Pressure 30.21 in1023 mb
POP 6% *
Humidity 58%
Thu, 15th
Grant Park IL Weather - Thursday, Oct 15, 2026 - Overcast
Hi: 58°F 15°C
Lo: 48°F 9°C
Sunrise 07:03 AM
Sunset 06:10 PM
Wind SSE 11 mph18 km/h
Dew Point 44°F7°C
uv Index 3
Barometric Pressure 30.06 in1018 mb
POP 15% *
Humidity 60%
Fri, 16th
Grant Park IL Weather - Friday, Oct 16, 2026 - Sunny
Hi: 71°F 22°C
Lo: 43°F 6°C
Sunrise 07:04 AM
Sunset 06:08 PM
Wind W 24 mph39 km/h
Dew Point 38°F3°C
uv Index 4
Barometric Pressure 29.85 in1011 mb
POP 3% *
Humidity 55%
Sat, 17th
Grant Park IL Weather - Saturday, Oct 17, 2026 - Cloudy
Hi: 46°F 8°C
Lo: 37°F 3°C
Sunrise 07:05 AM
Sunset 06:07 PM
Wind NW 19 mph31 km/h
Dew Point 25°F-4°C
uv Index 2
Barometric Pressure 30.3 in1026 mb
POP 11% *
Humidity 48%
Sun, 18th
Grant Park IL Weather - Sunday, Oct 18, 2026 - Partly Cloudy
Hi: 52°F 11°C
Lo: 33°F 0°C
Sunrise 07:06 AM
Sunset 06:05 PM
Wind SSW 9 mph15 km/h
Dew Point 24°F-5°C
uv Index 3
Barometric Pressure 30.39 in1029 mb
POP 5% *
Humidity 39%
Mon, 19th
Grant Park IL Weather - Monday, Oct 19, 2026 - Overcast
Hi: 62°F 16°C
Lo: 39°F 4°C
Sunrise 07:07 AM
Sunset 06:04 PM
Wind SW 13 mph21 km/h
Dew Point 32°F0°C
uv Index 3
Barometric Pressure 30.24 in1024 mb
POP 10% *
Humidity 40%
Tue, 20th
Grant Park IL Weather - Tuesday, Oct 20, 2026 - Sunny
Hi: 66°F 19°C
Lo: 45°F 7°C
Sunrise 07:08 AM
Sunset 06:02 PM
Wind SSE 6 mph9 km/h
Dew Point 38°F4°C
uv Index 5
Barometric Pressure 30.36 in1028 mb
POP 1% *
Humidity 43%
Wed, 21st
Grant Park IL Weather - Wednesday, Oct 21, 2026 - Overcast
Hi: 69°F 21°C
Lo: 50°F 10°C
Sunrise 07:10 AM
Sunset 06:01 PM
Wind SSW 13 mph21 km/h
Dew Point 40°F5°C
uv Index 4
Barometric Pressure 30.27 in1025 mb
POP 9% *
Humidity 41%
Thu, 22nd
Grant Park IL Weather - Thursday, Oct 22, 2026 - Patchy Rain Nearby
Hi: 61°F 16°C
Lo: 54°F 12°C
Sunrise 07:11 AM
Sunset 06:00 PM
Wind SSW 9 mph15 km/h
Dew Point 44°F7°C
uv Index 3
Barometric Pressure 30.03 in1017 mb
POP 50% *
Humidity 60%
* POP = Probability of Precipitation. Data for 12:00 PM.