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

Hazardous Weather Conditions

Current conditions at

Salem, Salem-Leckrone Airport (KSLO)

Lat: 38.64°NLon: 88.96°WElev: 574ft.

Partly Cloudy

87°F

31°C

Humidity 80%
Wind Speed SE 3 mph
Barometer 30.01 in
Dewpoint 80°F (27°C)
Visibility 10.00 mi
Heat Index103°F (39°C)
Last update 26 Jul 2:35 pm CDT
Extended Forecast for

Smithboro IL

Extreme Heat Warning July 26, 02:41pm until July 29, 07:00pm
Click here for hazard details and duration
Extreme Heat Warning
  •  
    Extreme Heat Warning July 26, 02:41pm until July 29, 07:00pm

    NOW until 7:00pm Tue

    Extreme Heat Warning

  • This Afternoon

    High: 90 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Scattered showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 74. South wind around 7 mph. Chance of precipitation is 40%.

    Low: 74 °F

    Scattered
    T-storms

  • Sunday

    Sunday: Scattered showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 90. Heat index values as high as 103. Southwest wind around 7 mph. Chance of precipitation is 50%.

    High: 90 °F

    Scattered
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 74. Light southwest wind.

    Low: 74 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.

    High: 93 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Scattered showers and thunderstorms, mainly after 4pm. Mostly sunny, with a high near 90. Heat index values as high as 102. South wind 7 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Tonight
Scattered showers and thunderstorms, mainly after midnight. Mostly cloudy, with a low around 74. South wind around 7 mph. Chance of precipitation is 40%.
Sunday
Scattered showers and thunderstorms, mainly after 11am. Partly sunny, with a high near 90. Heat index values as high as 103. Southwest wind around 7 mph. Chance of precipitation is 50%.
Sunday Night
Mostly cloudy, with a low around 74. Light southwest wind.
Monday
Mostly sunny, with a high near 93. Calm wind becoming west around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 75.
Tuesday
Sunny, with a high near 94.
Tuesday Night
Mostly clear, with a low around 75.
Wednesday
A 40 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 91.
Wednesday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 69.
Thursday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 82.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Smithboro IL
 38.9°N 89.34°W (Elev. 564 ft)
Last Update:
2:36 pm CDT Jul 26, 2025
Forecast Valid:
2pm CDT Jul 26, 2025-6pm CDT Aug 1, 2025
 
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