September 2025 Weather | St. Louis, Missouri
Today 9/3
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 86°
Night 57°
14
Thu 9/4
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 63°
2
Fri 9/5
Partly Sunny with ShowersPartly sunny weather with scattered clouds and occasional rain showers.
Day 73°
Night 52°
55
Sat 9/6
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 75°
Night 52°
0
Sun 9/7
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 75°
Night 46°
0
Mon 9/8
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 75°
Night 54°
0
Tue 9/9
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 79°
Night 55°
0
Wed 9/10
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 81°
Night 57°
0
Thu 9/11
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 57°
0
Fri 9/12
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 84°
Night 61°
0
Sat 9/13
Rainy WeatherRainy weather, precipitation in the form of water droplets falling from the sky.
Day 81°
Night 64°
55
Sun 9/14
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 64°
56
Mon 9/15
Sunny with a Chance of ThunderstormsSunny weather with a possibility of isolated thunderstorms developing later in the day.
Day 82°
Night 66°
59
Tue 9/16
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 81°
Night 61°
25
Wed 9/17
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 63°
20
Thu 9/18
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 84°
Night 64°
25
Fri 9/19
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 84°
Night 64°
25
Sat 9/20
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 81°
Night 63°
25
Sun 9/21
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 73°
Night 57°
10
Mon 9/22
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 73°
Night 57°
20
Tue 9/23
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 73°
Night 57°
20
Wed 9/24
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 75°
Night 57°
10
Thu 9/25
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 79°
Night 59°
20
Fri 9/26
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 81°
Night 59°
20
Sat 9/27
Sunny WeatherSunny weather, clear skies and sunny weather.
Day 81°
Night 63°
5
Sun 9/28
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 82°
Night 63°
10
Mon 9/29
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 79°
Night 63°
20
Tue 9/30
Cloudy WeatherCloudy weather, overcast skies with clouds.
Day 79°
Night 61°
20