Current conditions at
St. Louis Regional Airport (KALN)
Lat: 38.89°NLon: 90.03°WElev: 518ft.
Fair
37°F
3°C
| Humidity | 79% |
| Wind Speed | Calm |
| Barometer | 30.28 in |
| Dewpoint | 31°F (-1°C) |
| Visibility | 10.00 mi |
| Last update | 12 Mar 12:35 am CDT |
Extended Forecast for
Maryville IL
Overnight

Low: 31 °F
Mostly Clear
Thursday

High: 54 °F
Sunny
Thursday Night
Low: 44 °F
Mostly Clear
then Partly
Cloudy and
BreezyFriday

High: 60 °F
Partly Sunny
Friday Night

Low: 36 °F
Mostly Cloudy
Saturday

High: 60 °F
Partly Sunny
Saturday Night

Low: 51 °F
Mostly Cloudy
Sunday

High: 65 °F
Rain and
BreezySunday Night

Low: 25 °F
Chance
Rain/Snow and
Breezy
Detailed Forecast
Overnight
Mostly clear, with a low around 31. Northwest wind 7 to 10 mph, with gusts as high as 22 mph.
Thursday
Sunny, with a high near 54. Light and variable wind becoming southwest 5 to 10 mph in the morning.
Thursday Night
Mostly clear, with a low around 44. Breezy, with a south wind 13 to 21 mph, with gusts as high as 31 mph.
Friday
Partly sunny, with a high near 60. West wind 11 to 17 mph, with gusts as high as 25 mph.
Friday Night
Mostly cloudy, with a low around 36. Northwest wind around 7 mph becoming northeast after midnight.
Saturday
Partly sunny, with a high near 60.
Saturday Night
Mostly cloudy, with a low around 51.
Sunday
Rain likely and possibly a thunderstorm, then rain after 1pm. High near 65. Breezy. Chance of precipitation is 80%.
Sunday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 25. Breezy. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 35. Breezy.
Monday Night
Mostly clear, with a low around 18.
Tuesday
Mostly sunny, with a high near 41.
Tuesday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 33. Chance of precipitation is 20%.
Wednesday
Partly sunny, with a high near 55.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
Maryville IL
38.72°N 89.97°W (Elev. 558 ft)
38.72°N 89.97°W (Elev. 558 ft)
10:31 pm CDT Mar 11, 2026
12am CDT Mar 12, 2026-6pm CDT Mar 18, 2026


