Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

78°F

26°C

Humidity 30%
Wind Speed S 12 G 21 mph
Barometer 30.10 in (1018.9 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 9 Apr 5:53 pm CDT
Extended Forecast for

Granite City IL

  • Tonight

    Tonight: Increasing clouds, with a low around 60. South wind around 11 mph, with gusts as high as 22 mph.

    Low: 60 °F

    Increasing
    Clouds

  • Friday

    Friday: Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm.  Mostly cloudy, with a high near 72. Southwest wind 7 to 10 mph becoming northwest in the afternoon.  Chance of precipitation is 70%.

    High: 72 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A 40 percent chance of showers, mainly after 7pm.  Mostly cloudy, with a low around 52. East wind 5 to 7 mph.

    Low: 52 °F

    Chance
    Showers

  • Saturday

    Saturday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 74. Southeast wind 6 to 9 mph.  Chance of precipitation is 40%.

    High: 74 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 61. Southeast wind around 8 mph.

    Low: 61 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers after 1pm.  Mostly cloudy, with a high near 79.

    High: 79 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am.  Mostly cloudy, with a low around 65. Chance of precipitation is 60%.

    Low: 65 °F

    Chance
    Showers then
    Showers
    Likely

  • Monday

    Monday: A chance of showers, with thunderstorms also possible after 1pm.  Partly sunny, with a high near 84. Chance of precipitation is 40%.

    High: 84 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms

Detailed Forecast

Tonight
Increasing clouds, with a low around 60. South wind around 11 mph, with gusts as high as 22 mph.
Friday
Showers likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 72. Southwest wind 7 to 10 mph becoming northwest in the afternoon. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of showers, mainly after 7pm. Mostly cloudy, with a low around 52. East wind 5 to 7 mph.
Saturday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 74. Southeast wind 6 to 9 mph. Chance of precipitation is 40%.
Saturday Night
Mostly cloudy, with a low around 61. Southeast wind around 8 mph.
Sunday
A 20 percent chance of showers after 1pm. Mostly cloudy, with a high near 79.
Sunday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Monday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Monday Night
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Tuesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 86.
Tuesday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Wednesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 82.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
Thursday
A 30 percent chance of showers. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.73°N 90.11°W (Elev. 417 ft)
5:16 pm CDT Apr 9, 2026
6pm CDT Apr 9, 2026-6pm CDT Apr 16, 2026
 
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Additional Resources

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Hourly Weather Forecast

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