On July 7, 2015, NWS implemented changes to the icons depicted on all of its point-forecast pages. Changes include new icon images with increased clarity, 6-hour increments for rapidly changing weather and new color blocks to highlight forecast hazards.

A page depicting all of the new icon images can be accessed here: www.weather.gov/forecast-icons

Changes to the icons were based on analysis of 6,700 public comments collected in 2014. Also, many of these changes are based on the results of a research project led by the National Center for Atmospheric Research.

Users are encouraged to continue to provide comments regarding these changes via email at icons@noaa.gov. NWS will continue to analyze incoming feedback and refine the icons as necessary. Any substantial change to the icons will be facilitated through the NWS public comment/review process.

Critical Fire Weather Conditions from Great Basin to Northern Rockies

Parts of the western U.S. will return to dry and windy conditions on Wednesday which will lead to the potential for rapid fire spread. There are numerous ongoing wildfires in this part of the country. Red Flag Warnings are in effect for portions of several states including California, Nevada, Idaho, Wyoming and Montana.
Read More...

Current conditions at

St. Louis Downtown Airport (KCPS)

Lat: 38.56°NLon: 90.15°WElev: 410ft.

Fair

72°F

22°C

Humidity 87%
Wind Speed Calm
Barometer 30.06 in (1017.5 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 2 Sep 2:53 am CDT
Extended Forecast for

Collinsville IL

  • Overnight

    Overnight: Mostly clear, with a low around 70. Calm wind.

    Mostly Clear

    Low: 70 °F

  • Wednesday

    Wednesday: Sunny, with a high near 93. South wind 3 to 8 mph.

    Sunny

    High: 93 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 71. South wind 3 to 6 mph.

    Mostly Clear

    Low: 71 °F

  • Thursday

    Thursday: Mostly sunny, with a high near 93. South wind 3 to 6 mph.

    Mostly Sunny

    High: 93 °F

  • Thursday
    Night

    Thursday Night: Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm  in the evening.

    Partly Cloudy

    Low: 71 °F

  • Friday

    Friday: Mostly sunny, with a high near 92.

    Mostly Sunny

    High: 92 °F

  • Friday
    Night

    Friday Night: Mostly clear, with a low around 70.

    Mostly Clear

    Low: 70 °F

  • Saturday

    Saturday: Sunny, with a high near 92.

    Sunny

    High: 92 °F

  • Saturday
    Night

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

    Partly Cloudy

    Low: 70 °F

Detailed Forecast

Overnight
Mostly clear, with a low around 70. Calm wind.
Wednesday
Sunny, with a high near 93. South wind 3 to 8 mph.
Wednesday Night
Mostly clear, with a low around 71. South wind 3 to 6 mph.
Thursday
Mostly sunny, with a high near 93. South wind 3 to 6 mph.
Thursday Night
Partly cloudy, with a low around 71. Southeast wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 92.
Friday Night
Mostly clear, with a low around 70.
Saturday
Sunny, with a high near 92.
Saturday Night
Partly cloudy, with a low around 70.
Sunday
Mostly sunny, with a high near 92.
Sunday Night
Partly cloudy, with a low around 70.
Labor Day
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 90.
Monday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 69.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
  Click Map For Forecast
Point Forecast:
Collinsville IL
 38.68°N 90°W (Elev. 499 ft)
3:10 am CDT Sep 2, 2015
3am CDT Sep 2, 2015-6pm CDT Sep 8, 2015
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database