7-Day Forecast 38.68°N 90°W (Text-Only)
NWS Forecast for: Collinsville IL
Issued by: National Weather Service Saint Louis, MO
Last Update: 5:07 pm CST Jan 23, 2025
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  • Tonight

    Tonight: Mostly clear, with a low around 9. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 9 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 31. Calm wind becoming south 5 to 9 mph in the morning.

    High: 31 °F

    Sunny

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 24. South wind 7 to 11 mph, with gusts as high as 21 mph.

    Low: 24 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon.

    High: 45 °F

    Partly Sunny

  • Saturday
    Night

    Saturday Night: Mostly cloudy, with a low around 26. Northwest wind around 5 mph.

    Low: 26 °F

    Mostly Cloudy

  • Sunday

    Sunday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Sunday
    Night

    Sunday Night: Mostly clear, with a low around 24.

    Low: 24 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Monday
    Night

    Monday Night: Mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear

  • Tonight: Mostly clear, with a low around 9. Northwest wind 5 to 7 mph becoming calm in the evening.

    Friday: Sunny, with a high near 31. Calm wind becoming south 5 to 9 mph in the morning.

    Friday Night: Partly cloudy, with a low around 24. South wind 7 to 11 mph, with gusts as high as 21 mph.

    Saturday: Partly sunny, with a high near 45. South wind 6 to 10 mph becoming west in the afternoon.

    Saturday Night: Mostly cloudy, with a low around 26. Northwest wind around 5 mph.

    Sunday: Partly sunny, with a high near 36.

    Sunday Night: Mostly clear, with a low around 24.

    Monday: Sunny, with a high near 46.

    Monday Night: Mostly clear, with a low around 33.

    Tuesday: Sunny, with a high near 49.

    Tuesday Night: Mostly clear, with a low around 30.

    Wednesday: Sunny, with a high near 48.

    Wednesday Night: A 30 percent chance of rain. Partly cloudy, with a low around 30.

    Thursday: A 20 percent chance of rain. Mostly sunny, with a high near 45.



    Collinsville IL
     38.68°N 90°W (Elev. 499 ft)

    Visit your local NWS office at: https://www.weather.gov/lsx/