Hazardous Weather Conditions

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

55°F

13°C

Humidity 42%
Wind Speed SE 9 mph
Barometer 29.92 in (1013.2 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 17 Nov 11:53 pm CST
Extended Forecast for

Collinsville IL

  • Overnight

    Overnight: A chance of rain and thunderstorms before 4am, then a slight chance of rain and thunderstorms after 5am.  Cloudy, with a low around 51. Southeast wind around 10 mph.  Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    T-storms

  • Tuesday

    Tuesday: A 20 percent chance of rain and thunderstorms before 1pm.  Mostly cloudy, with a high near 70. Southeast wind 5 to 9 mph becoming northwest in the afternoon.

    High: 70 °F

    Slight Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. North wind 3 to 6 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 61. Light north wind.

    High: 61 °F

    Mostly Cloudy

  • Wednesday Night

    Wednesday Night: A 40 percent chance of rain after midnight.  Mostly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph after midnight.

    Low: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely, then rain and possibly a thunderstorm after 9am.  High near 66. Chance of precipitation is 80%.

    High: 66 °F

    Rain

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm.  Cloudy, with a low around 54. Chance of precipitation is 70%.

    Low: 54 °F

    Rain Likely

  • Friday

    Friday: Rain likely, with thunderstorms also possible after noon.  Mostly cloudy, with a high near 61. Chance of precipitation is 70%.

    High: 61 °F

    Rain Likely

  • Friday Night

    Friday Night: A 40 percent chance of rain before midnight.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
A chance of rain and thunderstorms before 4am, then a slight chance of rain and thunderstorms after 5am. Cloudy, with a low around 51. Southeast wind around 10 mph. Chance of precipitation is 40%.
Tuesday
A 20 percent chance of rain and thunderstorms before 1pm. Mostly cloudy, with a high near 70. Southeast wind 5 to 9 mph becoming northwest in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 47. North wind 3 to 6 mph.
Wednesday
Mostly cloudy, with a high near 61. Light north wind.
Wednesday Night
A 40 percent chance of rain after midnight. Mostly cloudy, with a low around 48. Calm wind becoming southeast around 5 mph after midnight.
Thursday
Rain likely, then rain and possibly a thunderstorm after 9am. High near 66. Chance of precipitation is 80%.
Thursday Night
Rain likely and possibly a thunderstorm. Cloudy, with a low around 54. Chance of precipitation is 70%.
Friday
Rain likely, with thunderstorms also possible after noon. Mostly cloudy, with a high near 61. Chance of precipitation is 70%.
Friday Night
A 40 percent chance of rain before midnight. Mostly cloudy, with a low around 43.
Saturday
Mostly sunny, with a high near 56.
Saturday Night
Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 60.
Sunday Night
A 20 percent chance of rain. Partly cloudy, with a low around 43.
Monday
A 20 percent chance of rain. Partly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
Collinsville IL
 38.68°N 89.97°W (Elev. 502 ft)
10:41 pm CST Nov 17, 2025
12am CST Nov 18, 2025-6pm CST Nov 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