Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

13°F

-11°C

Humidity 54%
Wind Speed NE 13 G 20 mph
Barometer 30.49 in (1033.4 mb)
Dewpoint -1°F (-18°C)
Visibility 10.00 mi
Wind Chill-2°F (-19°C)
Last update 18 Feb 1:53 pm CST
Extended Forecast for

Collinsville IL

Winter Weather Advisory February 18, 02:33pm until February 19, 06:00am
Cold Weather Advisory February 19, 09:00pm until February 20, 12:00pm
Click here for hazard details and duration
Winter Weather Advisory
Cold Weather Advisory
  •  
    Winter Weather Advisory February 18, 02:33pm until February 19, 06:00am

    NOW until 6:00am Wed

    Winter Weather Advisory

  • This Afternoon

    High: 15 °F

    Chance Snow

  • Tonight

    Tonight: Snow, mainly between 9pm and 2am.  Low around 9. North wind around 10 mph.  Chance of precipitation is 80%. New snow accumulation of around an inch possible.

    Low: 9 °F

    Snow

  • Wednesday

    Wednesday: A chance of flurries with a slight chance of snow before 4pm, then a chance of flurries between 4pm and 5pm.  Increasing clouds and cold, with a high near 18. North wind 9 to 11 mph.  Chance of precipitation is 20%.

    High: 18 °F

    Slight Chance
    Snow

  • Wednesday Night

    Wednesday Night: Cloudy, then gradually becoming partly cloudy, with a low around 3. Wind chill values as low as -10. Northwest wind around 10 mph.

    Low: 3 °F

    Decreasing
    Clouds

  • Thursday

    Thursday: Sunny and cold, with a high near 18. Northwest wind 6 to 10 mph.

    High: 18 °F

    Cold

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 3.

    Low: 3 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 26.

    High: 26 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 14.

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
A chance of flurries before 3pm, then a chance of snow, mainly after 4pm. Cloudy and cold, with a high near 15. North wind 10 to 13 mph. Chance of precipitation is 30%.
Tonight
Snow, mainly between 9pm and 2am. Low around 9. North wind around 10 mph. Chance of precipitation is 80%. New snow accumulation of around an inch possible.
Wednesday
A chance of flurries with a slight chance of snow before 4pm, then a chance of flurries between 4pm and 5pm. Increasing clouds and cold, with a high near 18. North wind 9 to 11 mph. Chance of precipitation is 20%.
Wednesday Night
Cloudy, then gradually becoming partly cloudy, with a low around 3. Wind chill values as low as -10. Northwest wind around 10 mph.
Thursday
Sunny and cold, with a high near 18. Northwest wind 6 to 10 mph.
Thursday Night
Mostly clear, with a low around 3.
Friday
Sunny, with a high near 26.
Friday Night
Partly cloudy, with a low around 14.
Saturday
Mostly sunny, with a high near 37.
Saturday Night
Partly cloudy, with a low around 26.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Mostly cloudy, with a low around 34.
Monday
Mostly sunny, with a high near 54.
Click Map For Forecast

ABOUT THIS FORECAST

 
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
12:36 pm CST Feb 18, 2025
2pm CST Feb 18, 2025-6pm CST Feb 24, 2025
 
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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