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.

Heat Wave in Central U.S.

Dangerous heat will continue in the Nation's mid-section on Tuesday. Combined with high humidity, this will lead to Heat Index temperatures ranging from 100 to 110 degrees Fahrenheit across parts of the Plains and mid-South. Heat Advisories and Excessive Heat Warnings are in effect. If you must be outside, slow down and drink plenty of water.
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Current conditions at

St. Charles, St. Charles County Smartt Airport (KSET)

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

74°F

23°C

Humidity 97%
Wind Speed Calm
Barometer 29.94 in (1013.2 mb)
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Last update 27 Jul 11:54 pm CDT
Extended Forecast for

6 Miles NNE Moscow Mills MO

Excessive Heat Warning until Tuesday 09:00pm
Click here for hazard details and duration
Excessive Heat Warning
  •  
    Excessive Heat Warning until Tuesday 09:00pm

    NOW until
    9:00pm Tue

    Excessive Heat Warning

  • Overnight

    Overnight: Partly cloudy, with a low around 72. Light east wind.

    Partly Cloudy

    Low: 72 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 95. Heat index values as high as 109. Light and variable wind becoming south around 5 mph in the afternoon.

    Mostly Sunny

    High: 95 °F

  • Tuesday
    Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am.  Partly cloudy, with a low around 77. Light and variable wind.

    Chance
    T-storms

    Low: 77 °F

  • Wednesday

    Wednesday: A 30 percent chance of showers and thunderstorms, mainly before 1pm.  Mostly sunny, with a high near 87. West wind 5 to 9 mph becoming north in the afternoon.

    Chance
    T-storms

    High: 87 °F

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around 64. Northwest wind 3 to 7 mph.

    Mostly Clear

    Low: 64 °F

  • Thursday

    Thursday: Sunny, with a high near 86.

    Sunny

    High: 86 °F

  • Thursday
    Night

    Thursday Night: Mostly clear, with a low around 64.

    Mostly Clear

    Low: 64 °F

  • Friday

    Friday: Sunny, with a high near 88.

    Sunny

    High: 88 °F

Detailed Forecast

Overnight
Partly cloudy, with a low around 72. Light east wind.
Tuesday
Mostly sunny, with a high near 95. Heat index values as high as 109. Light and variable wind becoming south around 5 mph in the afternoon.
Tuesday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 77. Light and variable wind.
Wednesday
A 30 percent chance of showers and thunderstorms, mainly before 1pm. Mostly sunny, with a high near 87. West wind 5 to 9 mph becoming north in the afternoon.
Wednesday Night
Mostly clear, with a low around 64. Northwest wind 3 to 7 mph.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 64.
Friday
Sunny, with a high near 88.
Friday Night
Mostly clear, with a low around 67.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 68.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
Partly cloudy, with a low around 69.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
  Click Map For Forecast
Point Forecast:
6 Miles NNE Moscow Mills MO
 39.03°N 90.87°W (Elev. 627 ft)
11:41 pm CDT Jul 27, 2015
12am CDT Jul 28, 2015-6pm CDT Aug 2, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database