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

St. Louis Regional Airport (KALN)

Lat: 38.89°NLon: 90.03°WElev: 518ft.

Fair

79°F

26°C

Humidity 45%
Wind Speed Vrbl 5 mph
Barometer 30.03 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 11 Oct 12:50 pm CDT
Extended Forecast for

Fidelity IL

  • This Afternoon

    This Afternoon: Sunny, with a high near 87. Light southwest wind.

    High: 87 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 62. Southeast wind 5 to 7 mph.

    Low: 62 °F

    Partly Cloudy

  • Columbus Day

    Columbus Day: Sunny, with a high near 93. Southwest wind 7 to 14 mph.

    High: 93 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70. Southwest wind 7 to 9 mph.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 91. Southwest wind 7 to 10 mph.

    High: 91 °F

    Sunny

  • Tuesday Night

    Tuesday Night: A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.

    Low: 69 °F

    Slight Chance
    T-storms then
    Chance
    T-storms

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.

    Low: 59 °F

    Showers
    Likely

  • Thursday

    Thursday: Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.

    High: 77 °F

    Showers

Detailed Forecast

This Afternoon
Sunny, with a high near 87. Light southwest wind.
Tonight
Partly cloudy, with a low around 62. Southeast wind 5 to 7 mph.
Columbus Day
Sunny, with a high near 93. Southwest wind 7 to 14 mph.
Monday Night
Mostly clear, with a low around 70. Southwest wind 7 to 9 mph.
Tuesday
Sunny, with a high near 91. Southwest wind 7 to 10 mph.
Tuesday Night
A 50 percent chance of showers and thunderstorms, mainly after 1am. Partly cloudy, with a low around 69.
Wednesday
Showers and possibly a thunderstorm. High near 82. Chance of precipitation is 80%.
Wednesday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Thursday
Showers and possibly a thunderstorm. High near 77. Chance of precipitation is 80%.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 50.
Friday
Partly sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 38.
Saturday
Mostly sunny, with a high near 61.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Fidelity IL
 39.15°N 90.15°W (Elev. 617 ft)
Last Update:
12:11 pm CDT Oct 11, 2026
Forecast Valid:
1pm CDT Oct 11, 2026-6pm CDT Oct 17, 2026
 
Forecast Discussion
 
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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation