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

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

72°F

22°C

Humidity 47%
Wind Speed SW 6 mph
Barometer 29.97 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 12 May 8:50 pm CDT
Extended Forecast for

3 Miles NNE Granite City IL

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 11pm and 1am. Mostly cloudy, then gradual clearing toward daybreak, with a low around 59. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 20%.

    Low: 59 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: Sunny, with a high near 75. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.

    High: 75 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 50. North wind 5 to 9 mph becoming calm in the evening.

    Low: 50 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 77. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 77 °F

    Sunny

  • Thursday Night

    Thursday Night: A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.

    Low: 57 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.

    High: 88 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday Night

    Friday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    T-storms

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.

    High: 89 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.

    Low: 67 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 11pm and 1am. Mostly cloudy, then gradual clearing toward daybreak, with a low around 59. Southwest wind 6 to 8 mph becoming northwest after midnight. Chance of precipitation is 20%.
Wednesday
Sunny, with a high near 75. Northwest wind 8 to 15 mph, with gusts as high as 22 mph.
Wednesday Night
Clear, with a low around 50. North wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny, with a high near 77. Calm wind becoming southeast 5 to 9 mph in the morning.
Thursday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 57. Southeast wind 10 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 50%.
Friday
A 50 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 67.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Saturday Night
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 89.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Monday
Showers and thunderstorms likely. Partly sunny, with a high near 91. Chance of precipitation is 60%.
Monday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 70%.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Granite City IL
 38.75°N 90.11°W (Elev. 417 ft)
Last Update:
9:21 pm CDT May 12, 2026
Forecast Valid:
9pm CDT May 12, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation