National Weather Service

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

29°C

84°F

Humidity	55%
Wind Speed	S 17 G 28 km/h
Barometer	1012.4 mb (29.91 in)
Dewpoint	19°C (66°F)
Visibility	16 km
Heat Index	30°C (86°F)
Last update	17 Jun 6:53 pm CDT

More Information:

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

Extended Forecast for

Granite City IL

Tonight
Low: 23 °C
Decreasing
Clouds
Tuesday
High: 34 °C
Partly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 24 °C
Mostly Cloudy
Juneteenth
High: 35 °C
Mostly Sunny
Wednesday Night
Low: 23 °C
Partly Cloudy
Thursday
High: 36 °C
Hot
Thursday Night
Low: 23 °C
Partly Cloudy
Friday
High: 37 °C
Hot
Friday Night
Low: 25 °C
Partly Cloudy

Detailed Forecast

Tonight

Cloudy, then gradually becoming partly cloudy, with a low around 23. South wind 19 to 24 km/h decreasing to 13 to 18 km/h after midnight. Winds could gust as high as 48 km/h.

Tuesday

A 20 percent chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 34. South wind 18 to 26 km/h, with gusts as high as 40 km/h.

Tuesday Night

Mostly cloudy, with a low around 24. South wind 16 to 21 km/h decreasing to 8 to 13 km/h after midnight. Winds could gust as high as 35 km/h.

Juneteenth

Mostly sunny, with a high near 35. South wind 5 to 14 km/h.

Wednesday Night

Partly cloudy, with a low around 23. South wind 8 to 13 km/h becoming light in the evening.

Thursday

Mostly sunny and hot, with a high near 36.

Thursday Night

Partly cloudy, with a low around 23.

Friday

Mostly sunny and hot, with a high near 37.