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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Partly Cloudy

81°F

27°C

Humidity 70%
Wind Speed SW 14 mph
Barometer 29.91 in
Dewpoint 70°F (21°C)
Visibility 10.00 mi
Heat Index85°F (29°C)
Last update 9 Jul 4:50 pm CDT
Extended Forecast for

3 Miles NNE Granite City IL

  • This Afternoon

    This Afternoon: Scattered showers and thunderstorms. Cloudy, with a high near 89. Northwest wind around 6 mph. Chance of precipitation is 40%.

    High: 89 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly between 1am and 4am. Mostly cloudy, with a low around 73. Southeast wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.

    Low: 73 °F

    T-storms
    Likely

  • Friday

    Friday: Scattered showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 89. South wind 5 to 7 mph becoming northwest in the morning. Chance of precipitation is 30%.

    High: 89 °F

    Scattered
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 72. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%.

    Low: 72 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.

    High: 86 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.

    Low: 70 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 69.

    Low: 69 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms. Cloudy, with a high near 89. Northwest wind around 6 mph. Chance of precipitation is 40%.
Tonight
Showers and thunderstorms likely, mainly between 1am and 4am. Mostly cloudy, with a low around 73. Southeast wind around 6 mph becoming light and variable in the evening. Chance of precipitation is 60%.
Friday
Scattered showers and thunderstorms, mainly after 4pm. Partly sunny, with a high near 89. South wind 5 to 7 mph becoming northwest in the morning. Chance of precipitation is 30%.
Friday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 72. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 70%.
Saturday
A 50 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Calm wind becoming north around 6 mph in the morning.
Saturday Night
A 30 percent chance of showers and thunderstorms, mainly before 1am. Partly cloudy, with a low around 70.
Sunday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 87.
Sunday Night
Mostly clear, with a low around 69.
Monday
Sunny, with a high near 89.
Monday Night
Mostly clear, with a low around 70.
Tuesday
Sunny, with a high near 91.
Tuesday Night
Mostly clear, with a low around 72.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 73.
Thursday
Sunny, with a high near 93.
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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:
2:41 pm CDT Jul 9, 2026
Forecast Valid:
4pm CDT Jul 9, 2026-6pm CDT Jul 16, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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