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.

Light Rain

56°F

13°C

Humidity 99%
Wind Speed NA
Barometer 29.97 in
Dewpoint 56°F (13°C)
Visibility 0.50 mi
Last update 4 Mar 10:35 pm CST
Extended Forecast for

4 Miles N Greenville IL

Dense Fog Advisory until March 5, 06:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory until March 5, 06:00am

    NOW until 6:00am Thu

    Dense Fog Advisory

  • Tonight

    Low: 53 °F

    Showers and
    Dense Fog

  • Thursday

    Thursday: Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before noon. Otherwise, cloudy, with a high near 65. West wind 5 to 9 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.

    High: 65 °F

    Showers
    Likely and
    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly after 1am. Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 55. Calm wind becoming southeast 5 to 8 mph after midnight.

    Low: 55 °F

    Chance
    T-storms and
    Patchy Fog

  • Friday

    Friday: Scattered showers, mainly before noon. Partly sunny, with a high near 76. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 30%.

    High: 76 °F

    Scattered
    Showers and
    Breezy

  • Friday Night

    Friday Night: Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.

    Low: 56 °F

    Scattered
    T-storms then
    Showers

  • Saturday

    Saturday: Showers likely before noon. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.

    High: 65 °F

    Showers
    Likely then
    Mostly Cloudy

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

Detailed Forecast

Tonight
Showers and possibly a thunderstorm. Widespread dense fog, mainly between 11pm and midnight. Low around 53. Light and variable wind becoming south around 6 mph after midnight. Chance of precipitation is 100%.
Thursday
Showers and thunderstorms likely before 10am, then a slight chance of showers between 10am and 11am. Patchy fog before noon. Otherwise, cloudy, with a high near 65. West wind 5 to 9 mph becoming light and variable in the afternoon. Chance of precipitation is 70%.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly after 1am. Patchy fog between 11pm and midnight. Otherwise, mostly cloudy, with a low around 55. Calm wind becoming southeast 5 to 8 mph after midnight.
Friday
Scattered showers, mainly before noon. Partly sunny, with a high near 76. Breezy, with a south wind 8 to 13 mph increasing to 15 to 20 mph in the afternoon. Chance of precipitation is 30%.
Friday Night
Scattered showers before 9pm, then scattered showers and thunderstorms between 9pm and midnight, then showers and possibly a thunderstorm after midnight. Low around 56. South wind 13 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 80%.
Saturday
Showers likely before noon. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
Saturday Night
Partly cloudy, with a low around 39.
Sunday
Sunny, with a high near 62.
Sunday Night
Mostly clear, with a low around 46.
Monday
Sunny, with a high near 74.
Monday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Tuesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 74. Breezy. Chance of precipitation is 70%.
Tuesday Night
Showers and possibly a thunderstorm. Low around 47. Chance of precipitation is 90%.
Wednesday
Showers likely. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles N Greenville IL
 38.95°N 89.39°W (Elev. 515 ft)
Last Update:
10:26 pm CST Mar 4, 2026
Forecast Valid:
10pm CST Mar 4, 2026-6pm CDT Mar 11, 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