National Weather Service

News Headlines

Current conditions at

St. Louis Lambert International Airport (KSTL)

Lat: 38.75°NLon: 90.37°WElev: 604ft.

Overcast

24°F

-4°C

Humidity	77%
Wind Speed	N 5 mph
Barometer	30.33 in (1028.3 mb)
Dewpoint	18°F (-8°C)
Visibility	10.00 mi
Wind Chill	18°F (-8°C)
Last update	8 Dec 4:51 am CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Saint Charles MO

Today
High: 34 °F
Decreasing
Clouds
Tonight
Low: 27 °F⇑
Partly Cloudy
Tuesday
High: 52 °F
Mostly Sunny
Tuesday Night
Low: 42 °F
Mostly Cloudy
Wednesday
High: 46 °F⇓
Partly Sunny
and Breezy
then Partly
Sunny
Wednesday Night
Low: 27 °F
Mostly Cloudy
Thursday
High: 37 °F
Slight Chance
Snow then
Mostly Cloudy
Thursday Night
Low: 23 °F
Mostly Cloudy
Friday
High: 32 °F
Partly Sunny

Detailed Forecast

Today

Mostly cloudy, then gradually becoming sunny, with a high near 34. North wind around 6 mph becoming calm in the morning.

Tonight

Partly cloudy, with a temperature falling to near 27 by 8pm, then rising to around 34 during the remainder of the night. Southeast wind 5 to 10 mph becoming southwest after midnight. Winds could gust as high as 20 mph.

Tuesday

Mostly sunny, with a high near 52. Southwest wind around 10 mph, with gusts as high as 20 mph.

Tuesday Night

Mostly cloudy, with a low around 42. South wind 11 to 16 mph becoming west after midnight. Winds could gust as high as 31 mph.

Wednesday

Partly sunny, with a temperature falling to around 37 by 5pm. Breezy, with a west wind 15 to 20 mph decreasing to 9 to 14 mph in the afternoon. Winds could gust as high as 30 mph.

Wednesday Night

Mostly cloudy, with a low around 27.

Thursday

A 20 percent chance of snow before noon. Mostly cloudy, with a high near 37.

Thursday Night

Mostly cloudy, with a low around 23.

Friday

Partly sunny, with a high near 32.

Friday Night

Mostly cloudy, with a low around 9.

Saturday

Partly sunny and cold, with a high near 20.