Widespread Wintry Weather Continues From the Central Rockies to the Northeast

A winter storm will track slowly from the Central Rockies to the Lower Mississippi River Valley by Monday before strengthening and shifting into the Northeast by Tuesday. Heavy snow will continue over the Central Rockies into Sunday. A swath of mixed wintry precipitation including snow and freezing rain will cause hazardous travel from the Central Plains into the Northeast Sunday and Monday. Read More >

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

-3°C

26°F

Humidity 78%
Wind Speed NW 6 km/h
Barometer 30.03 in
Dewpoint -7°C (20°F)
Visibility 16 km
Last update 15 Dec 12:35 am CST
Extended Forecast for

Maryville IL

Winter Storm Watch December 15, 09:00am until December 17, 12:00am
Click here for hazard details and duration
Winter Storm Watch
  • Overnight

    Overnight: Mostly cloudy, with a low around -5. Northwest wind 5 to 10 km/h.

    Mostly Cloudy

    Low: -5 °C

  • Sunday

    Sunday: Snow, mainly after 1pm.  High near 0. North wind 5 to 10 km/h becoming east 13 to 18 km/h in the afternoon.  Chance of precipitation is 100%. New snow accumulation of 3 to 7 centimeters possible.

    Chance Snow
    then Snow

    High: 0 °C

  • Sunday
    Night

    Sunday Night: Rain and freezing rain, possibly mixed with snow before midnight, then rain or freezing rain likely.  Low around -2. East wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight.  Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of a centimeter possible.  New snow accumulation of 1 to 2 centimeters possible.

    Wintry Mix
    then
    Rain/Freezing
    Rain Likely

    Low: -2 °C

  • Monday

    Monday: Rain, snow, and freezing rain before noon, then snow, possibly mixed with rain between noon and 1pm, then snow after 1pm.  High near 1. North wind 13 to 21 km/h.  Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of a centimeter possible.  New snow accumulation of 1 to 3 centimeters possible.

    Wintry Mix

    High: 1 °C

  • Monday
    Night

    Monday Night: Snow likely, mainly before midnight.  Mostly cloudy, with a low around -7. North wind 16 to 23 km/h.  Chance of precipitation is 60%. New snow accumulation of 1 to 3 centimeters possible.

    Snow Likely
    then Slight
    Chance Snow

    Low: -7 °C

  • Tuesday

    Tuesday: Sunny, with a high near -1.

    Sunny

    High: -1 °C

  • Tuesday
    Night

    Tuesday Night: Mostly clear, with a low around -9.

    Mostly Clear

    Low: -9 °C

  • Wednesday

    Wednesday: Sunny, with a high near 1.

    Sunny

    High: 1 °C

  • Wednesday
    Night

    Wednesday Night: Mostly clear, with a low around -4.

    Mostly Clear

    Low: -4 °C

Detailed Forecast

Overnight
Mostly cloudy, with a low around -5. Northwest wind 5 to 10 km/h.
Sunday
Snow, mainly after 1pm. High near 0. North wind 5 to 10 km/h becoming east 13 to 18 km/h in the afternoon. Chance of precipitation is 100%. New snow accumulation of 3 to 7 centimeters possible.
Sunday Night
Rain and freezing rain, possibly mixed with snow before midnight, then rain or freezing rain likely. Low around -2. East wind 16 to 21 km/h decreasing to 10 to 15 km/h after midnight. Chance of precipitation is 100%. New ice accumulation of 0.1 to 0.2 of a centimeter possible. New snow accumulation of 1 to 2 centimeters possible.
Monday
Rain, snow, and freezing rain before noon, then snow, possibly mixed with rain between noon and 1pm, then snow after 1pm. High near 1. North wind 13 to 21 km/h. Chance of precipitation is 80%. New ice accumulation of less than a 0.1 of a centimeter possible. New snow accumulation of 1 to 3 centimeters possible.
Monday Night
Snow likely, mainly before midnight. Mostly cloudy, with a low around -7. North wind 16 to 23 km/h. Chance of precipitation is 60%. New snow accumulation of 1 to 3 centimeters possible.
Tuesday
Sunny, with a high near -1.
Tuesday Night
Mostly clear, with a low around -9.
Wednesday
Sunny, with a high near 1.
Wednesday Night
Mostly clear, with a low around -4.
Thursday
Mostly sunny, with a high near 7.
Thursday Night
Mostly cloudy, with a low around -1.
Friday
Mostly cloudy, with a high near 7.
Friday Night
Mostly cloudy, with a low around -1.
Saturday
Mostly sunny, with a high near 7.
Click Map For Forecast
Point Forecast:
Maryville IL
 38.72°N 89.94°W (Elev. 169 m)
11:46 pm CST Dec 14, 2019
12am CST Dec 15, 2019-6pm CST Dec 20, 2019
 
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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