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Hour-by-Hour Forecast for Six Flags Great America, Illinois, USA

Currently: 74 °F. Thunderstorms. Mostly cloudy. (Weather station: Chicago Midway Airport, USA). See more current weather

Hour-by-hour Forecast in Six Flags Great America — Graph

°F
Time
Wind
(mph)
Rain/Snow
()
Temp
(°F)
68
70
72
74
76
78
80
82
84
86
88
Tuesday, July 8, 2025
0.02
11 pm
76
8
Wednesday, July 9, 2025
0.01
12 am
75
7
0.01
1 am
75
6
0.01
2 am
74
5
0.01
3 am
74
5
0.01
4 am
73
5
0.01
5 am
73
5
0.01
6 am
73
5
0.01
7 am
73
6
0.01
8 am
74
6
9 am
76
6
10 am
76
6
11 am
77
8
12 pm
77
10
1 pm
77
12
2 pm
77
11
3 pm
77
11
4 pm
76
10
5 pm
76
9
6 pm
74
8
7 pm
73
7
8 pm
73
7
9 pm
72
6
10 pm
71
6
11 pm
72
5
Thursday, July 10, 2025
12 am
72
5
1 am
71
4
2 am
71
4
3 am
71
4
4 am
70
4
5 am
70
4
6 am
70
3
7 am
71
3
8 am
71
3
9 am
73
3
10 am
73
4
11 am
74
5
12 pm
75
7
1 pm
75
9
2 pm
76
9
3 pm
76
9
4 pm
76
9
5 pm
76
9
6 pm
75
8
7 pm
74
7
8 pm
74
7
9 pm
73
7
10 pm
73
7
11 pm
73
5
Friday, July 11, 2025
12 am
73
4
1 am
72
5
2 am
72
4
3 am
71
4
4 am
71
4
5 am
71
6
6 am
71
7
7 am
71
9
8 am
73
8
9 am
75
8
10 am
76
7
11 am
78
8
12 pm
80
8
1 pm
81
8
2 pm
82
7
3 pm
82
7
4 pm
83
9
5 pm
83
6
6 pm
82
5
7 pm
81
6
8 pm
80
7
9 pm
80
9
10 pm
79
11
11 pm
79
11
Saturday, July 12, 2025
12 am
80
11
1 am
80
11
2 am
79
12
3 am
79
12
4 am
78
13
5 am
78
13
6 am
78
12
7 am
78
12
8 am
79
10
9 am
80
9
10 am
81
10
11 am
82
9
12 pm
84
8
1 pm
85
7
2 pm
85
8
3 pm
85
9
4 pm
85
11
5 pm
85
11
6 pm
84
11
7 pm
83
11
8 pm
81
10
9 pm
80
9
10 pm
78
9
11 pm
77
8
Sunday, July 13, 2025
12 am
76
8
1 am
74
8
2 am
74
8
3 am
73
8
4 am
73
7
5 am
72
7
6 am
71
6
7 am
72
5
8 am
74
4
9 am
76
4
10 am
78
3
11 am
78
2
12 pm
78
0
1 pm
79
1
2 pm
80
2
3 pm
81
3
4 pm
82
3
5 pm
81
3
6 pm
81
2
7 pm
79
1
8 pm
79
2
9 pm
77
2
10 pm
76
3
11 pm
76
4
Monday, July 14, 2025
12 am
75
5
1 am
74
6
2 am
74
7
3 am
73
7
4 am
71
8
5 am
70
8
6 am
70
9
7 am
71
10
8 am
73
10
9 am
76
10
10 am
79
11
11 am
80
11
12 pm
82
11
1 pm
84
11
2 pm
85
10
3 pm
85
10
4 pm
85
9
5 pm
84
10
6 pm
83
12
7 pm
82
13
8 pm
81
12
9 pm
80
10
10 pm
79
8
11 pm
79
8
Tuesday, July 15, 2025
12 am
78
8
1 am
78
8
2 am
78
8
3 am
76
8
4 am
76
8
5 am
76
9
6 am
75
10
7 am
76
11
0.01
8 am
77
11
0.02
9 am
79
12
0.03
10 am
81
13
0.04
11 am
83
14
0.04
12 pm
85
15
0.04
1 pm
87
16
0.04
2 pm
86
16
0.03
3 pm
84
16
0.02
4 pm
83
16
0.04
5 pm
82
15
0.07
6 pm
80
14
Tue, Jul 8 at 11:00 pm
76 °F
Thundershowers. Overcast.
Feels Like: 77 °F
Humidity: 77%
Precipitation: Rain: 0.02 Snow: 0
Precipitation Chance: 59%
SW
Wind: 8 mph

Detailed Hourly Forecast — Next 24 hours

Scroll right to see more
 ConditionsComfortPrecipitation
Time TempWeatherFeels LikeWind HumidityChanceAmount
11:00 pm
Tue, Jul 8
76 °FThundershowers. Overcast.77 °F8 mph77%59%0.00" (snow)
0.02" (rain)
12:00 am
Wed, Jul 9
75 °FPassing showers. Overcast.76 °F7 mph77%59%0.00" (snow)
0.01" (rain)
1:00 am75 °FPassing showers. Overcast.75 °F6 mph79%50%0.00" (snow)
0.01" (rain)
2:00 am74 °FPassing showers. Overcast.74 °F5 mph80%49%0.00" (snow)
0.01" (rain)
3:00 am74 °FPassing showers. Overcast.73 °F5 mph82%43%0.00" (snow)
0.01" (rain)
4:00 am73 °FPassing showers. Overcast.72 °F5 mph84%34%0.00" (snow)
0.01" (rain)
5:00 am73 °FPassing showers. Broken clouds.72 °F5 mph85%30%0.00" (snow)
0.01" (rain)
6:00 am73 °FPassing showers. Partly cloudy.72 °F5 mph86%30%0.00" (snow)
0.01" (rain)
7:00 am73 °FPassing showers. Scattered clouds.72 °F6 mph86%31%0.00" (snow)
0.01" (rain)
8:00 am74 °FPassing showers. Scattered clouds.74 °F6 mph83%28%0.00" (snow)
0.01" (rain)
9:00 am76 °FMostly sunny.77 °F6 mph78%10%0.00" (snow)
0.00" (rain)
10:00 am76 °FMostly sunny.78 °F6 mph74%6%0.00" (snow)
0.00" (rain)
11:00 am77 °FMostly sunny.79 °F8 mph73%4%0.00" (snow)
0.00" (rain)
12:00 pm77 °FMostly sunny.79 °F10 mph72%4%0.00" (snow)
0.00" (rain)
1:00 pm77 °FScattered clouds.79 °F12 mph71%6%0.00" (snow)
0.00" (rain)
2:00 pm77 °FPassing showers. Scattered clouds.79 °F11 mph71%16%0.00" (snow)
0.00" (rain)
3:00 pm77 °FPassing showers. Scattered clouds.79 °F11 mph70%17%0.00" (snow)
0.00" (rain)
4:00 pm76 °FPassing showers. Scattered clouds.78 °F10 mph70%17%0.00" (snow)
0.00" (rain)
5:00 pm76 °FPassing showers. Scattered clouds.77 °F9 mph71%16%0.00" (snow)
0.00" (rain)
6:00 pm74 °FBroken clouds.75 °F8 mph75%6%0.00" (snow)
0.00" (rain)
7:00 pm73 °FCloudy.73 °F7 mph79%5%0.00" (snow)
0.00" (rain)
8:00 pm73 °FBroken clouds.73 °F7 mph78%4%0.00" (snow)
0.00" (rain)
9:00 pm72 °FBroken clouds.73 °F6 mph79%4%0.00" (snow)
0.00" (rain)
10:00 pm71 °FBroken clouds.72 °F6 mph80%4%0.00" (snow)
0.00" (rain)
* Updated Tuesday, July 8, 2025 8:02:26 pm Six Flags Great America time - Weather by CustomWeather, © 2025

14 days extended forecast