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

Heat Builds in the West; Extremely Critical Fire Weather in the Northwest

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Critical to extremely critical fire weather conditions are forecast from the Northwest and the northern Great Basin this weekend. Particularly Dangerous Situation Red Flag Warnings have been issued. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Overcast

68°F

20°C

Humidity 89%
Wind Speed N 7 mph
Barometer 29.79 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 2 Aug 5:35 am CDT
Extended Forecast for

3 Miles NNE Granite City IL

  • Today

    Today: Partly sunny, with a high near 82. North wind 13 to 15 mph, with gusts as high as 22 mph.

    High: 82 °F

    Partly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 65. North wind 5 to 10 mph becoming light after midnight.

    Low: 65 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 86. North wind 3 to 5 mph.

    High: 86 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.

    Low: 66 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 88. Light east wind.

    High: 88 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy
    then Chance
    T-storms

  • Thursday

    Thursday: A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.

    High: 87 °F

    Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 82. North wind 13 to 15 mph, with gusts as high as 22 mph.
Tonight
Mostly clear, with a low around 65. North wind 5 to 10 mph becoming light after midnight.
Monday
Sunny, with a high near 86. North wind 3 to 5 mph.
Monday Night
Clear, with a low around 66. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 88. Light east wind.
Tuesday Night
Mostly clear, with a low around 68.
Wednesday
Sunny, with a high near 90.
Wednesday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Thursday
A 50 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 71.
Friday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Friday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 92.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE Granite City IL
 38.75°N 90.11°W (Elev. 417 ft)
Last Update:
4:26 am CDT Aug 2, 2026
Forecast Valid:
5am CDT Aug 2, 2026-6pm CDT Aug 8, 2026
 
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