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

81°F

27°C

Humidity 79%
Wind Speed SW 5 mph
Barometer 30.04 in
Dewpoint 73°F (23°C)
Visibility 7.00 mi
Heat Index86°F (30°C)
Last update 30 Jun 7:50 am CDT
Extended Forecast for

Sawyerville IL

Extreme Heat Warning June 30, 08:25am until July 3, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning June 30, 08:25am until July 3, 10:00pm

    NOW until 10:00pm Fri

    Extreme Heat Warning

  • Today

    High: 95 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 75. South wind 3 to 8 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. Heat index values as high as 105. Light south wind increasing to 5 to 9 mph in the morning.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 75. South wind 5 to 9 mph becoming light after midnight.

    Low: 75 °F

    Clear

  • Thursday

    Thursday: A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Southwest wind 3 to 7 mph.

    High: 95 °F

    Sunny then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.

    Low: 75 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.

    High: 94 °F

    Sunny then
    Chance
    T-storms

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.

    Low: 73 °F

    Slight Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 95. Heat index values as high as 106. Southwest wind 6 to 10 mph.
Tonight
Mostly clear, with a low around 75. South wind 3 to 8 mph.
Wednesday
Sunny, with a high near 95. Heat index values as high as 105. Light south wind increasing to 5 to 9 mph in the morning.
Wednesday Night
Clear, with a low around 75. South wind 5 to 9 mph becoming light after midnight.
Thursday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 95. Southwest wind 3 to 7 mph.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 75.
Friday
A 40 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94.
Friday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 73.
Independence Day
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 93.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Sunday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 91.
Sunday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Monday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sawyerville IL
 39.07°N 89.81°W (Elev. 600 ft)
Last Update:
2:21 am CDT Jun 30, 2026
Forecast Valid:
8am CDT Jun 30, 2026-6pm CDT Jul 6, 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