National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

76°F

24°C

Humidity 62%
Wind Speed S 16 G 29 mph
Barometer 29.52 in (999.5 mb)
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 2 Apr 9:53 am CDT
Extended Forecast for

Granite City IL

Tornado Watch until April 2, 04:00pm
Wind Advisory April 2, 12:00pm until April 2, 07:00pm
Click here for hazard details and duration
Tornado Watch
Wind Advisory
  •  
    Tornado Watch until April 2, 04:00pm

    NOW until 4:00pm Wed

    Tornado Watch

  • Today

    High: 77 °F

    Breezy.
    Chance
    T-storms then
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 52. West wind 6 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.

    Low: 52 °F

    T-storms
    Likely then
    Partly Cloudy

  • Thursday

    Thursday: A chance of showers, with thunderstorms also possible after 1pm. Increasing clouds, with a high near 64. Calm wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 50%.

    High: 64 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Cloudy, with a low around 51. Northeast wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.

    Low: 51 °F

    Showers
    Likely

  • Friday

    Friday: Showers likely, then showers and possibly a thunderstorm after 1pm. High near 63. East wind 7 to 9 mph. Chance of precipitation is 100%.

    High: 63 °F

    Showers
    Likely then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Chance of precipitation is 100%.

    Low: 53 °F

    Heavy Rain

  • Saturday

    Saturday: Showers and possibly a thunderstorm. High near 59. Chance of precipitation is 100%.

    High: 59 °F

    Showers

  • Saturday Night

    Saturday Night: Showers. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Showers

Detailed Forecast

Today
Showers and thunderstorms. High near 77. Breezy, with a south wind 22 to 25 mph, with gusts as high as 46 mph. Chance of precipitation is 80%.
Tonight
Showers and thunderstorms likely, mainly before 9pm. Cloudy during the early evening, then gradual clearing, with a low around 52. West wind 6 to 15 mph, with gusts as high as 29 mph. Chance of precipitation is 60%.
Thursday
A chance of showers, with thunderstorms also possible after 1pm. Increasing clouds, with a high near 64. Calm wind becoming northeast 5 to 9 mph in the morning. Chance of precipitation is 50%.
Thursday Night
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Cloudy, with a low around 51. Northeast wind 6 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 70%.
Friday
Showers likely, then showers and possibly a thunderstorm after 1pm. High near 63. East wind 7 to 9 mph. Chance of precipitation is 100%.
Friday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 53. Chance of precipitation is 100%.
Saturday
Showers and possibly a thunderstorm. High near 59. Chance of precipitation is 100%.
Saturday Night
Showers. Low around 43. Chance of precipitation is 80%.
Sunday
A 40 percent chance of showers before 1pm. Partly sunny, with a high near 54.
Sunday Night
Partly cloudy, with a low around 38.
Monday
Sunny, with a high near 56.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Sunny, with a high near 58.
Click Map For Forecast
Disclaimer
Map Legend

ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.71°N 90.14°W (Elev. 410 ft)
Last Update:
9:21 am CDT Apr 2, 2025
Forecast Valid:
10am CDT Apr 2, 2025-6pm CDT Apr 8, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation