Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Overcast

52°F

11°C

Humidity 80%
Wind Speed N 15 mph
Barometer 30.42 in (1030.2 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 16 Oct 9:53 pm CDT
Extended Forecast for

2 Miles NNW Collinsville IL

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming clear, with a low around 40. North wind 9 to 14 mph.

    Low: 40 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 61. North wind 3 to 7 mph.

    High: 61 °F

    Sunny

  • Saturday Night

    Saturday Night: Patchy frost after 4am.  Otherwise, clear, with a low around 36. Calm wind.

    Low: 36 °F

    Clear then
    Patchy Frost

  • Sunday

    Sunday: Patchy frost before 9am.  Otherwise, sunny, with a high near 66. Calm wind becoming southeast 5 to 7 mph in the morning.

    High: 66 °F

    Patchy Frost
    then Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 38. Light southeast wind.

    Low: 38 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 72.

    High: 72 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 41.

    Low: 41 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 43.

    Low: 43 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, then gradually becoming clear, with a low around 40. North wind 9 to 14 mph.
Saturday
Sunny, with a high near 61. North wind 3 to 7 mph.
Saturday Night
Patchy frost after 4am. Otherwise, clear, with a low around 36. Calm wind.
Sunday
Patchy frost before 9am. Otherwise, sunny, with a high near 66. Calm wind becoming southeast 5 to 7 mph in the morning.
Sunday Night
Clear, with a low around 38. Light southeast wind.
Monday
Sunny, with a high near 72.
Monday Night
Mostly clear, with a low around 41.
Tuesday
Mostly sunny, with a high near 75.
Tuesday Night
Mostly clear, with a low around 43.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 47.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 50.
Friday
Mostly sunny, with a high near 82.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles NNW Collinsville IL
 38.7°N 90.03°W (Elev. 423 ft)
9:26 pm CDT Oct 16, 2026
10pm CDT Oct 16, 2026-6pm CDT Oct 23, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database