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Today Hourly 7 days 30 days September
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September 2026 Weather | St. Louis, Missouri

Today 9/14
Cloudy Weather
Day 88°
Night 70°
1
Tue 9/15
Sunny with a Chance of Thunderstorms
Day 99°
Night 72°
55
Wed 9/16
Hot Day
Day 97°
Night 72°
55
Thu 9/17
Cloudy Weather
Day 95°
Night 70°
55
Fri 9/18
Cloudy Weather
Day 91°
Night 70°
55
Sat 9/19
Hot Day
Day 97°
Night 73°
20
Sun 9/20
Cloudy Weather
Day 93°
Night 72°
55
Mon 9/21
Cloudy Weather
Day 82°
Night 66°
9
Tue 9/22
Cloudy Weather
Day 79°
Night 64°
0
Wed 9/23
Cloudy Weather
Day 79°
Night 63°
0
Thu 9/24
Cloudy Weather
Day 79°
Night 63°
9
Fri 9/25
Cloudy Weather
Day 79°
Night 63°
2
Sat 9/26
Cloudy Weather
Day 81°
Night 63°
5
Sun 9/27
Cloudy Weather
Day 82°
Night 64°
25
Mon 9/28
Stormy Weather
Day 79°
Night 64°
70
Tue 9/29
Cloudy Weather
Day 82°
Night 63°
Wed 9/30
Cloudy Weather
Day 82°
Night 63°

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