Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

89°F

32°C

Humidity 30%
Wind Speed S 9 G 20 mph
Barometer 29.69 in (1004.8 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Heat Index87°F (31°C)
Last update 26 Mar 6:53 pm CDT
Extended Forecast for

Granite City IL

  • Tonight

    Tonight: Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers likely after 4am.  Low around 41. Breezy, with a southwest wind 9 to 14 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 32 mph.  Chance of precipitation is 90%.

    Low: 41 °F

    Breezy.
    Chance
    T-storms then
    Showers

  • Friday

    Friday: A 30 percent chance of showers, mainly before 8am.  Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 15 to 17 mph, with gusts as high as 29 mph.

    High: 54 °F

    Chance
    Showers then
    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 20 mph.

    Low: 32 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 57. Calm wind becoming southeast 5 to 8 mph in the morning.

    High: 57 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 68.

    High: 68 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Slight Chance
    Rain

Detailed Forecast

Tonight
Showers and thunderstorms likely before 2am, then showers and possibly a thunderstorm between 2am and 4am, then showers likely after 4am. Low around 41. Breezy, with a southwest wind 9 to 14 mph becoming north 15 to 20 mph in the evening. Winds could gust as high as 32 mph. Chance of precipitation is 90%.
Friday
A 30 percent chance of showers, mainly before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 15 to 17 mph, with gusts as high as 29 mph.
Friday Night
Mostly clear, with a low around 32. North wind 6 to 13 mph, with gusts as high as 20 mph.
Saturday
Sunny, with a high near 57. Calm wind becoming southeast 5 to 8 mph in the morning.
Saturday Night
Mostly cloudy, with a low around 41. South wind around 7 mph.
Sunday
Partly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 58.
Monday
Mostly sunny, with a high near 85.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 65.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 88.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 60.
Wednesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 79.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.73°N 90.11°W (Elev. 417 ft)
5:41 pm CDT Mar 26, 2026
7pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026
 
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Additional Resources

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