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Today Hourly 7 days 30 days September
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September 2025 Weather | St. Louis, Missouri
Mon 9/1
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 90°
Night 72°
5
Tue 9/2
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 90°
Night 72°
65
Wed 9/3
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 90°
Night 72°
61
Thu 9/4
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 88°
Night 70°
25
Fri 9/5
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 88°
Night 70°
55
Sat 9/6
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 88°
Night 70°
10
Sun 9/7
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 88°
Night 70°
65
Mon 9/8
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 86°
Night 70°
25
Tue 9/9
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 68°
25
Wed 9/10
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 84°
Night 68°
20
Thu 9/11
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 84°
Night 68°
10
Fri 9/12
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 84°
Night 64°
0
Sat 9/13
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 86°
Night 64°
0
Sun 9/14
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 86°
Night 64°
0
Mon 9/15
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 55°
0
Tue 9/16
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 73°
Night 57°
0
Wed 9/17
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 63°
Thu 9/18
Rainy WeatherRainy weather, precipitation in the form of water droplets falling from the sky.
Day 75°
Night 61°
Fri 9/19
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 73°
Night 61°
Sat 9/20
Cloudy WeatherCloudy weather, overcast skies with no rain.
Day 75°
Night 59°
Sun 9/21
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 55°
Mon 9/22
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 57°
Tue 9/23
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 77°
Night 59°
Wed 9/24
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 54°
Thu 9/25
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 73°
Night 55°
Fri 9/26
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 79°
Night 57°
Sat 9/27
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 81°
Night 61°
Sun 9/28
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 82°
Night 61°
Mon 9/29
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 63°
Tue 9/30
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 81°
Night 63°