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.

Fog/Mist

70°F

21°C

Humidity 95%
Wind Speed Calm
Barometer 30.02 in
Dewpoint 68°F (20°C)
Visibility 4.00 mi
Last update 6 Jul 6:35 am CDT
Extended Forecast for

Fidelity IL

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. North wind 5 to 7 mph.

    High: 84 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 65. North wind 3 to 7 mph.

    Low: 65 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, then gradually becoming sunny, with a high near 85. Northeast wind 5 to 7 mph.

    High: 85 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.

    Low: 64 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 88. Calm wind.

    High: 88 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 68.

    Low: 68 °F

    Mostly Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.

    Low: 71 °F

    T-storms
    Likely

  • Friday

    Friday: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87.

    High: 87 °F

    Chance
    T-storms

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 84. North wind 5 to 7 mph.
Tonight
Partly cloudy, with a low around 65. North wind 3 to 7 mph.
Tuesday
A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, then gradually becoming sunny, with a high near 85. Northeast wind 5 to 7 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 88. Calm wind.
Wednesday Night
Mostly clear, with a low around 68.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 91.
Thursday Night
Showers and thunderstorms likely, mainly after 1am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 87.
Friday Night
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 86.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 67.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Fidelity IL
 39.15°N 90.15°W (Elev. 617 ft)
Last Update:
5:52 am CDT Jul 6, 2026
Forecast Valid:
6am CDT Jul 6, 2026-6pm CDT Jul 12, 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