Periods of Snow in the Northern Rockies and Great Lakes

Moderate to heavy lake-effect snow will develop over the eastern U.P. of Michigan and downwind from Lakes Erie and Ontario. Snow will develop over parts of the Northern Rockies/Northern High Plains into Wednesday. Read More >

Current conditions at

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

Lat: 38.93°NLon: 90.43°WElev: 436ft.

Fair

-1°C

31°F

Humidity 54%
Wind Speed W 13 km/h
Barometer 1023.0 mb (30.20 in)
Dewpoint -9°C (16°F)
Visibility 16 km
Wind Chill-4°C (24°F)
Last update 19 Mar 12:54 am CDT
Extended Forecast for

3 Miles W Grafton IL

  • Overnight

    Overnight: Mostly clear, with a low around -3. Southwest wind around 10 km/h.

    Mostly Clear

    Low: -3 °C

  • Tuesday

    Tuesday: Sunny, with a high near 18. Breezy, with a west wind 11 to 21 km/h increasing to 24 to 34 km/h. Winds could gust as high as 55 km/h.

    Sunny and
    Breezy

    High: 18 °C

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around 2. Northwest wind 10 to 16 km/h, with gusts as high as 32 km/h.

    Mostly Clear

    Low: 2 °C

  • Wednesday

    Wednesday: Sunny, with a high near 11. North wind 10 to 18 km/h.

    Sunny

    High: 11 °C

  • Wednesday
    Night

    Wednesday Night: Partly cloudy, with a low around 1. Northeast wind 11 to 13 km/h.

    Partly Cloudy

    Low: 1 °C

  • Thursday

    Thursday: Partly sunny, with a high near 9.

    Partly Sunny

    High: 9 °C

  • Thursday
    Night

    Thursday Night: A 20 percent chance of rain after 1am.  Partly cloudy, with a low around 3.

    Mostly Cloudy
    then Slight
    Chance Rain

    Low: 3 °C

  • Friday

    Friday: A 30 percent chance of rain, mainly after 1pm.  Partly sunny, with a high near 15.

    Chance Rain

    High: 15 °C

  • Friday
    Night

    Friday Night: A 20 percent chance of rain before 1am.  Partly cloudy, with a low around 2.

    Slight Chance
    Rain

    Low: 2 °C

Detailed Forecast

Overnight
Mostly clear, with a low around -3. Southwest wind around 10 km/h.
Tuesday
Sunny, with a high near 18. Breezy, with a west wind 11 to 21 km/h increasing to 24 to 34 km/h. Winds could gust as high as 55 km/h.
Tuesday Night
Mostly clear, with a low around 2. Northwest wind 10 to 16 km/h, with gusts as high as 32 km/h.
Wednesday
Sunny, with a high near 11. North wind 10 to 18 km/h.
Wednesday Night
Partly cloudy, with a low around 1. Northeast wind 11 to 13 km/h.
Thursday
Partly sunny, with a high near 9.
Thursday Night
A 20 percent chance of rain after 1am. Partly cloudy, with a low around 3.
Friday
A 30 percent chance of rain, mainly after 1pm. Partly sunny, with a high near 15.
Friday Night
A 20 percent chance of rain before 1am. Partly cloudy, with a low around 2.
Saturday
Mostly sunny, with a high near 12.
Saturday Night
A 30 percent chance of rain. Mostly cloudy, with a low around 4.
Sunday
A 40 percent chance of rain. Mostly cloudy, with a high near 16. Breezy.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 10. Breezy. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 18. Breezy. Chance of precipitation is 70%.
Click Map For Forecast
Point Forecast:
3 Miles W Grafton IL
 38.98°N 90.5°W (Elev. 189 m)
10:22 pm CDT Mar 18, 2024
1am CDT Mar 19, 2024-6pm CDT Mar 25, 2024
 
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