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.

Overcast

68°F

20°C

Humidity 82%
Wind Speed SW 3 mph
Barometer 30.02 in
Dewpoint 62°F (17°C)
Visibility 10.00 mi
Last update 20 Jun 4:35 am CDT
Extended Forecast for

Bunker Hill IL

Flood Watch June 21, 07:00am until June 22, 01:00am
Click here for hazard details and duration
Flood Watch

  • Today

    Today: Mostly sunny, with a high near 83. Calm wind becoming north around 5 mph in the morning.

    High: 83 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 65. Light and variable wind becoming east 5 to 7 mph after midnight.

    Low: 65 °F

    Mostly Cloudy

  • Sunday

    Sunday: Showers and thunderstorms. High near 80. Southeast wind 9 to 16 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.

    High: 80 °F

    T-storms

  • Sunday Night

    Sunday Night: Showers and thunderstorms, mainly before 1am. Low around 62. Southwest wind 8 to 13 mph becoming northwest after midnight. Chance of precipitation is 80%.

    Low: 62 °F

    T-storms

  • Monday

    Monday: A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76. North wind around 11 mph.

    High: 76 °F

    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 83. Calm wind becoming north around 5 mph in the morning.
Tonight
Mostly cloudy, with a low around 65. Light and variable wind becoming east 5 to 7 mph after midnight.
Sunday
Showers and thunderstorms. High near 80. Southeast wind 9 to 16 mph becoming south in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Sunday Night
Showers and thunderstorms, mainly before 1am. Low around 62. Southwest wind 8 to 13 mph becoming northwest after midnight. Chance of precipitation is 80%.
Monday
A 20 percent chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 76. North wind around 11 mph.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 60.
Thursday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers. Partly cloudy, with a low around 60.
Friday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Bunker Hill IL
 39.03°N 89.96°W (Elev. 643 ft)
Last Update:
2:56 am CDT Jun 20, 2026
Forecast Valid:
4am CDT Jun 20, 2026-6pm CDT Jun 26, 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