Six Flags Great America Weather

Gurnee, IL · Six Flags · Theme park
Will rides close today?
Updated 23 minutes ago
Guest outlook (next 24h): 😊 Comfort: Good (79) 😤 Frustration: Low (11)

Current conditions

50°
Chance Rain Showers
Feels like 47°F
Feels like
47°F
Dew point
47°F
Humidity
88%
Cloud cover
91%
Precip chance
27%
Snow chance (24h)
0%
Precip (next 24h)
0.08 in
Pressure
30.37 inHg
Wind
↑ E 10 mph · G17

Attraction impact outlook

😴 Outside operating hours — see the next window
😊 Comfort: Good (79) 😤 Frustration: Low (11)
Tall coasters (200ft+) (1) Likely operating
Coasters (12) Likely operating
Water rides (2) Likely closed
Temperatures below the 55°F operating minimum Sat 9am and Sat 8pm–10pm (≈3 hrs) — low 53°F
Flat & spinning rides (9) Likely operating
Kids' rides (5) Likely operating
😊 Comfort: Excellent (90) 😤 Frustration: Low (11)
Tall coasters (200ft+) (1) Likely operating
Coasters (12) Likely operating
Water rides (2) Likely closed
Temperatures below the 55°F operating minimum Sun 8pm–10pm (≈2 hrs) — low 54°F
Flat & spinning rides (9) Likely operating
Kids' rides (5) Likely operating
😊 Comfort: Excellent (85) 😤 Frustration: Moderate (26)
Tall coasters (200ft+) (1) Possible impact
60% chance of precipitation — watch for storm development
Coasters (12) Possible impact
60% chance of precipitation — watch for storm development
Water rides (2) Possible impact
60% chance of precipitation — watch for storm development
Low of 58°F Mon 9pm, close to the 55°F operating minimum
Flat & spinning rides (9) Possible impact
60% chance of precipitation — watch for storm development
Kids' rides (5) Possible impact
60% chance of precipitation — watch for storm development

Forecast confidence decreases with range: the next-24h outlook is based on high-resolution NWS forecasts, while the 48–72h windows lean on model guidance and can shift meaningfully — recheck closer to your visit. Parks make their own operating decisions.

Forecast

Tonight
49°F
Chance Rain Showers
10 mph E · 27% precip
Saturday
60°F
Chance Rain Showers
10 mph SE · 47% precip
Saturday Night
51°F
Slight Chance Rain Showers
0 to 5 mph SSE · 23% precip
Sunday
66°F
Mostly Cloudy
0 to 5 mph SE · 14% precip
Sunday Night
52°F
Mostly Cloudy
5 mph SE · 13% precip
Monday
65°F
Chance Rain Showers
5 to 15 mph SSE · 42% precip
Monday Night
56°F
Rain Showers Likely
5 to 10 mph SSE · 60% precip
Tuesday
69°F
Rain Showers Likely
10 to 15 mph S · 69% precip
Tuesday Night
55°F
Rain Showers Likely
5 to 10 mph S · 65% precip

Tonight: A chance of rain showers. Cloudy. Low around 49, with temperatures rising to around 51 overnight. East wind around 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

72-hour forecast

Hour-by-hour (next 72 hours, park local time)

Sat Oct 31
12am
50°
🌦
27%
10/17
1am
50°
🌦
21%
10/17
2am
51°
 
15%
10/17
3am
51°
 
15%
10/16
4am
51°
 
15%
10/16
5am
51°
🌦
20%
10/16
6am
50°
🌦
25%
10/16
7am
50°
🌦
30%
10/16
8am
50°
🌦
35%
10/16
9am
53°
🌦
41%
10/16
10am
55°
🌦
47%
10/16
11am
58°
🌦
43%
10/16
12pm
58°
🌦
39%
10/11
1pm
58°
🌦
35%
10/11
2pm
59°
🌦
34%
10/11
3pm
59°
🌦
34%
10/2
4pm
58°
🌦
33%
10/2
5pm
58°
🌦
28%
10/2
6pm
58°
🌦
23%
5/9
7pm
56°
 
18%
5/9
8pm
54°
 
18%
5/9
9pm
54°
 
18%
5/13
10pm
54°
 
17%
5/13
11pm
53°
 
16%
5/13
Sun Nov 1
12am
53°
 
16%
5/7
1am
52°
 
15%
5/7
1am
52°
 
13%
0/7
2am
52°
 
12%
0/4
3am
52°
 
10%
0/4
4am
52°
 
9%
0/4
5am
51°
 
7%
0/4
6am
51°
 
6%
0/4
7am
52°
 
6%
0/4
8am
55°
 
6%
5/13
9am
60°
 
6%
5/13
10am
63°
 
6%
5/13
11am
65°
 
6%
5/15
12pm
65°
 
14%
5/15
1pm
66°
 
14%
5/15
2pm
65°
 
14%
5/15
3pm
64°
 
14%
5/15
4pm
62°
 
14%
5/15
5pm
59°
 
14%
5/24
6pm
57°
 
13%
5/24
7pm
55°
 
13%
5/24
8pm
54°
 
13%
5/23
9pm
54°
 
13%
5/23
10pm
54°
 
13%
5/23
11pm
53°
 
13%
5/19
Mon Nov 2
12am
53°
 
6%
5/19
1am
53°
 
6%
5/19
2am
53°
 
6%
5/19
3am
53°
 
6%
5/19
4am
52°
 
6%
5/19
5am
52°
 
6%
5/21
6am
52°
 
18%
5/21
7am
54°
 
18%
5/21
8am
57°
 
18%
5/23
9am
59°
 
18%
10/23
10am
62°
 
18%
10/23
11am
63°
 
18%
10/26
12pm
64°
🌦
42%
10/26
1pm
64°
🌦
42%
10/26
2pm
64°
🌦
42%
10/31
3pm
64°
🌦
42%
10/31
4pm
63°
🌦
42%
15/31
5pm
62°
🌦
42%
15/34
6pm
61°
🌧
60%
5/34
7pm
60°
🌧
60%
10/34
8pm
59°
🌧
60%
10/35
9pm
58°
🌧
60%
10/35
10pm
58°
🌧
60%
10/35
Rows: time · temperature · conditions (⚡ storms, 🌧 likely rain, 🌦 chance) · precip % · wind mph/gusts. Hours beyond 48h are lower-confidence guidance.

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