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.

Fair

77°F

25°C

Humidity 76%
Wind Speed S 10 G 22 mph
Barometer 29.95 in
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Heat Index79°F (26°C)
Last update 27 Jul 6:35 am CDT
Extended Forecast for

3 Miles W Bunker Hill IL

Extreme Heat Warning July 27, 06:58am until July 27, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 27, 06:58am until July 27, 09:00pm

    NOW until 9:00pm Mon

    Extreme Heat Warning

  • Today

    High: 96 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph becoming northwest after midnight.

    Low: 76 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 89. North wind 6 to 10 mph.

    High: 89 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 67. North wind 5 to 8 mph becoming calm in the evening.

    Low: 67 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 86. Calm wind becoming northeast 5 to 7 mph in the morning.

    High: 86 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 30 percent chance of showers and thunderstorms, mainly after 5pm. Sunny, with a high near 96. Heat index values as high as 112. Calm wind becoming southwest 5 to 9 mph in the morning.
Tonight
Partly cloudy, with a low around 76. Southwest wind 5 to 7 mph becoming northwest after midnight.
Tuesday
Mostly sunny, with a high near 89. North wind 6 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 67. North wind 5 to 8 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 86. Calm wind becoming northeast 5 to 7 mph in the morning.
Wednesday Night
Mostly clear, with a low around 64.
Thursday
Sunny, with a high near 87.
Thursday Night
A 20 percent chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 67.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Friday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
Saturday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 82.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 64.
Sunday
Sunny, with a high near 83.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles W Bunker Hill IL
 39.06°N 90.01°W (Elev. 656 ft)
Last Update:
5:26 am CDT Jul 27, 2026
Forecast Valid:
6am CDT Jul 27, 2026-6pm CDT Aug 2, 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