Heat and Fire Weather Concerns West; Heavy Rain and Thunderstorms from Plains to mid-Atlantic

Thunderstorms and locally heavy rainfall is expected from the Central Plains to the Ohio Valley, mid-Atlantic and across the Southeast. Severe weather from the Upper Midwest to Central Plains increases on Friday. Major to Extreme HeatRisk continues across the Southern Plains to the lower Mississippi Valley late this week. Fire weather concerns for the northern Rockies and northern Plains today. Read More >

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

79°F

26°C

Humidity 77%
Wind Speed SE 3 mph
Barometer 30.02 in (1016.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 10 Sep 12:53 pm CDT
Extended Forecast for

Granite City IL

  • This Afternoon

    This Afternoon: A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm.  Mostly cloudy, with a high near 79. Calm wind becoming north around 5 mph.  Chance of precipitation is 20%.

    High: 79 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Patchy fog after 2am.  Otherwise, mostly cloudy, with a low around 69. Light northeast wind.

    Low: 69 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A slight chance of showers before 11am, then a slight chance of showers after noon.  Patchy fog before 8am.  Otherwise, cloudy through mid morning, then becoming mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the morning.  Chance of precipitation is 20%.

    High: 85 °F

    Slight Chance
    Showers and
    Patchy Fog

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm  in the evening.

    Low: 70 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning.

    High: 91 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 70.

    Low: 70 °F

    Partly Cloudy

  • Sunday

    Sunday: A slight chance of showers, with thunderstorms also possible after 1pm.  Mostly sunny, with a high near 91. Chance of precipitation is 20%.

    High: 91 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68.

    Low: 68 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93.

    High: 93 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
A slight chance of showers before 3pm, then a slight chance of showers and thunderstorms between 3pm and 4pm. Mostly cloudy, with a high near 79. Calm wind becoming north around 5 mph. Chance of precipitation is 20%.
Tonight
Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 69. Light northeast wind.
Friday
A slight chance of showers before 11am, then a slight chance of showers after noon. Patchy fog before 8am. Otherwise, cloudy through mid morning, then becoming mostly sunny, with a high near 85. Calm wind becoming southeast around 5 mph in the morning. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 70. South wind around 5 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 91. Calm wind becoming west around 6 mph in the morning.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
A slight chance of showers, with thunderstorms also possible after 1pm. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 68.
Monday
Mostly sunny, with a high near 93.
Monday Night
Mostly clear, with a low around 72.
Tuesday
A 30 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Wednesday
A 50 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Granite City IL
 38.71°N 90.14°W (Elev. 410 ft)
1:25 pm CDT Sep 10, 2026
1pm CDT Sep 10, 2026-6pm CDT Sep 16, 2026
 
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Additional Resources

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