Six Flags St. Louis Weather

Eureka, MO · Six Flags · Theme park
Will rides close today?
Updated 10 minutes ago
Heat Advisory
Heat Advisory issued September 15 at 11:53AM CDT until September 18 at 8:00PM CDT by NWS St Louis MO
Until Tue 10:00 PM CDT
Guest outlook (right now): 😊 Comfort: Poor (33) 😤 Frustration: Severe (73)

Current conditions

95°
Sunny
Feels like 102°F
Feels like
102°F
Dew point
70°F
Humidity
45%
Cloud cover
12%
Precip chance
6%
Snow chance (24h)
0%
Precip (next 24h)
0.08 in
Pressure
30.03 inHg
Wind
↑ SW 3 mph · G15

Attraction impact outlook

😊 Comfort: Poor (33) 😤 Frustration: Severe (73)
Coasters (8) Likely closed
Thunderstorms in the forecast Tue 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Water rides (3) Likely closed
Thunderstorms in the forecast Tue 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Flat & spinning rides (8) Likely closed
Thunderstorms in the forecast Tue 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Kids' rides (5) Likely closed
Thunderstorms in the forecast Tue 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
😊 Comfort: Poor (37) 😤 Frustration: Severe (80)
Coasters (8) Likely closed
Thunderstorms in the forecast Tue 4pm–Wed 4pm (≈13 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Water rides (3) Likely closed
Thunderstorms in the forecast Tue 4pm–Wed 4pm (≈13 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Flat & spinning rides (8) Likely closed
Thunderstorms in the forecast Tue 4pm–Wed 4pm (≈13 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Kids' rides (5) Likely closed
Thunderstorms in the forecast Tue 4pm–Wed 4pm (≈13 hrs) — outdoor attractions close during lightning; expect rolling interruptions
😊 Comfort: Fair (49) 😤 Frustration: Severe (73)
Coasters (8) Likely closed
Thunderstorms in the forecast Wed 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Water rides (3) Likely closed
Thunderstorms in the forecast Wed 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Flat & spinning rides (8) Likely closed
Thunderstorms in the forecast Wed 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
Kids' rides (5) Likely closed
Thunderstorms in the forecast Wed 4pm–7pm (≈3 hrs) — outdoor attractions close during lightning; expect rolling interruptions
😊 Comfort: Fair (59) 😤 Frustration: Moderate (15)
Coasters (8) Possible impact
High of 95°F Thu 4pm approaching heat-advisory territory for guests
Water rides (3) Likely operating
Flat & spinning rides (8) Possible impact
High of 95°F Thu 4pm approaching heat-advisory territory for guests
Kids' rides (5) Possible impact
Highs to 95°F Thu 4pm–6pm (≈2 hrs) — heat stress risk for guests; hydrate and plan indoor breaks

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

This Afternoon
97°F
Slight Chance Showers And Thunderstorms
3 mph SW · 18% precip
Tonight
74°F
Scattered Showers And Thunderstorms
2 mph SE · 31% precip
Wednesday
93°F
Scattered Showers And Thunderstorms
2 mph SE · 27% precip
Wednesday Night
74°F
Scattered Showers And Thunderstorms then Mostly Clear
2 mph S · 31% precip
Thursday
96°F
Sunny
3 mph W · 7% precip
Thursday Night
73°F
Partly Cloudy
0 mph · 7% precip
Friday
95°F
Sunny
2 mph S · 5% precip
Friday Night
72°F
Partly Cloudy
2 mph S · 4% precip
Saturday
95°F
Mostly Sunny
2 to 6 mph SW · 7% precip

This Afternoon: A slight chance of showers and thunderstorms after 4pm. Sunny, with a high near 97. Heat index values as high as 103. Southwest wind around 3 mph. Chance of precipitation is 20%.

72-hour forecast

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

Tue Sep 15
2pm
95°
 
6%
3/15
3pm
95°
 
11%
3/5
4pm
96°
⚡
15%
3/5
5pm
94°
⚡
18%
3/5
6pm
90°
⚡
21%
2/1
7pm
89°
⚡
28%
2/1
8pm
85°
⚡
26%
2/1
9pm
83°
⚡
24%
2/6
10pm
81°
⚡
27%
2/6
11pm
80°
⚡
31%
2/6
Wed Sep 16
12am
78°
⚡
27%
1/1
1am
78°
⚡
23%
1/1
2am
77°
⚡
24%
1/1
3am
76°
⚡
26%
1/2
4am
75°
⚡
28%
1/2
5am
75°
⚡
30%
1/2
6am
74°
⚡
27%
1/3
7am
74°
⚡
24%
1/3
8am
76°
⚡
22%
1/3
9am
77°
⚡
21%
1/5
10am
81°
⚡
19%
2/5
11am
85°
⚡
19%
2/5
12pm
89°
⚡
19%
2/5
1pm
91°
⚡
19%
2/5
2pm
91°
⚡
19%
2/5
3pm
92°
⚡
19%
2/8
4pm
91°
⚡
19%
2/8
5pm
91°
⚡
25%
2/8
6pm
90°
⚡
31%
1/25
7pm
88°
 
13%
1/25
8pm
83°
 
11%
1/25
9pm
81°
 
8%
1/8
10pm
80°
 
6%
1/8
11pm
79°
 
4%
1/8
Thu Sep 17
12am
78°
 
2%
1/4
1am
77°
 
0%
2/4
2am
76°
 
0%
2/4
3am
76°
 
0%
2/4
4am
75°
 
0%
2/4
5am
74°
 
2%
2/4
6am
74°
 
4%
2/4
7am
74°
 
6%
2/4
8am
76°
 
6%
2/4
9am
81°
 
6%
2/8
10am
85°
 
6%
3/8
11am
88°
 
6%
3/8
12pm
91°
 
6%
3/7
1pm
93°
 
7%
3/7
2pm
94°
 
7%
2/7
3pm
95°
 
7%
2/5
4pm
95°
 
7%
1/5
5pm
94°
 
7%
1/5
6pm
92°
 
7%
0/21
7pm
90°
 
6%
0/21
8pm
87°
 
6%
0/21
9pm
84°
 
6%
0/3
10pm
81°
 
6%
0/3
11pm
79°
 
6%
0/3
Fri Sep 18
12am
78°
 
6%
0/1
1am
77°
 
4%
0/1
2am
76°
 
4%
0/1
3am
75°
 
4%
0/1
4am
75°
 
4%
0/1
5am
74°
 
4%
0/1
6am
73°
 
4%
1/2
7am
73°
 
5%
1/2
8am
75°
 
5%
1/2
9am
78°
 
5%
2/4
10am
82°
 
5%
2/4
11am
86°
 
5%
2/4
12pm
89°
 
5%
2/7
1pm
92°
 
4%
2/7
Rows: time · temperature · conditions (⚡ storms, 🌧 likely rain, 🌦 chance) · precip % · wind mph/gusts. Hours beyond 48h are lower-confidence guidance.

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