National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fog/Mist

61°F

16°C

Humidity 88%
Wind Speed E 9 mph
Barometer 29.96 in
Dewpoint 57°F (14°C)
Visibility 5.00 mi
Last update 25 Dec 3:50 pm CST
Extended Forecast for

Maryville IL

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southeast wind around 8 mph becoming south after midnight.

    Low: 58 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 67. Southwest wind 6 to 11 mph becoming northwest in the afternoon.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 67. Southeast wind 5 to 10 mph.

    High: 67 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A 30 percent chance of rain after midnight. Cloudy, with a low around 60. South wind 8 to 10 mph.

    Low: 60 °F

    Cloudy then
    Chance Rain

  • Sunday

    Sunday: Rain likely, then showers and possibly a thunderstorm after 9am. High near 70. Chance of precipitation is 80%.

    High: 70 °F

    Showers

  • Sunday Night

    Sunday Night: Rain likely, possibly mixed with snow before midnight. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 60%.

    Low: 21 °F

    Blustery.
    Rain/Snow
    Likely then
    Mostly Cloudy

  • Monday

    Monday: Sunny, with a high near 28. Blustery.

    High: 28 °F

    Mostly Sunny
    and Blustery
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 19.

    Low: 19 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 58. Southeast wind around 8 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 67. Southwest wind 6 to 11 mph becoming northwest in the afternoon.
Friday Night
Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Partly sunny, with a high near 67. Southeast wind 5 to 10 mph.
Saturday Night
A 30 percent chance of rain after midnight. Cloudy, with a low around 60. South wind 8 to 10 mph.
Sunday
Rain likely, then showers and possibly a thunderstorm after 9am. High near 70. Chance of precipitation is 80%.
Sunday Night
Rain likely, possibly mixed with snow before midnight. Mostly cloudy, with a low around 21. Blustery. Chance of precipitation is 60%.
Monday
Sunny, with a high near 28. Blustery.
Monday Night
Mostly clear, with a low around 19.
Tuesday
Sunny, with a high near 35.
Tuesday Night
Partly cloudy, with a low around 25.
Wednesday
Mostly sunny, with a high near 40.
Wednesday Night
Mostly clear, with a low around 25.
New Year's Day
Sunny, with a high near 38.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Maryville IL
 38.72°N 90°W (Elev. 551 ft)
Last Update:
3:36 pm CST Dec 25, 2025
Forecast Valid:
4pm CST Dec 25, 2025-6pm CST Jan 1, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation