USA / Saint Louis
Monday, September 21, 2026

Saint Louis, US

heavy intensity rain

75°
Feels like 76°
H: 78° L: 73°
heavy intensity rain

Smart Outdoor Advice

It's raining out there. Don't forget to grab an umbrella and wear water-resistant shoes.

Hourly Forecast

6 AM

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74°

88%

9 AM

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72°

93%

12 PM

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70°

98%

3 PM

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75°

86%

6 PM

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75°

85%

9 PM

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79°

73%

12 AM

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74°

76%

3 AM

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69°

79%

Air Quality Index

1

Good

Air quality index is good in Saint Louis.

PM2.5

3.5

PM10

3.9

O₃

56.1

NO₂

1.8

CO

118.5

Verified Station: KSTL

Official METAR Observation

From St. Louis Lambert International Airport, MO

79°F

Thunderstorm

Wind

East at 10.4 MPH (9 KT)

Pressure

29.93 inHg

Humidity

69%

Last Update

Last Update on Sep 20 2026, 9:51 pm CDT

Data Source: NOAA's National Weather Service

Humidity

85%

Dew Point

72°

Wind Speed

2mph

Gusts

2mph

Sunrise

11:47 AM

Sunset

12:02 AM

Pressure

1013hPa

Visibility

4.5mi

5-Day Extended Outlook

Mon, Sep 21

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75°

overcast clouds

79° 70°

Tue, Sep 22

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65°

overcast clouds

75° 65°

Wed, Sep 23

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57°

clear sky

72° 57°

Thu, Sep 24

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60°

clear sky

71° 60°

Fri, Sep 25

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65°

broken clouds

73° 65°

Sat, Sep 26

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67°

scattered clouds

69° 67°

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Weather Details for Saint Louis, US

What is the weather in Saint Louis?

The current weather in Saint Louis is heavy intensity rain. Local conditions are updated in real-time to provide the most accurate Saint Louis weather data.

What is the temperature in Saint Louis?

The current temperature in Saint Louis is 75°F (24°C). Looking for the Saint Louis temperature today? Expect a high of 78°F and a low of 73°F.

Is there a weather forecast for Saint Louis?

Yes, our Saint Louis forecast weather includes a detailed 5-day outlook and hourly updates. Stay informed about Saint Louis humidity, wind speeds, and barometric pressure.

Current Conditions & Alerts

Monitor Saint Louis current weather including visibility of 4.5 miles and atmospheric pressure of 1013 hPa.