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.

Fog/Mist

47°F

8°C

Humidity 98%
Wind Speed NE 3 mph
Barometer 30.25 in
Dewpoint 46°F (8°C)
Visibility 3.00 mi
Last update 24 Dec 3:15 am CST
Extended Forecast for

4 Miles SSE Greenville IL

Dense Fog Advisory December 24, 03:18am until December 24, 09:00am
Click here for hazard details and duration
Dense Fog Advisory
  •  
    Dense Fog Advisory December 24, 03:18am until December 24, 09:00am

    NOW until 9:00am Wed

    Dense Fog Advisory

  • Overnight

    Low: 43 °F

    Dense Fog

  • Wednesday

    Wednesday: Patchy drizzle before 2pm, then patchy drizzle after 4pm. Patchy dense fog before 9am. Otherwise, cloudy, with a high near 59. East wind 6 to 8 mph becoming southeast in the afternoon.

    High: 59 °F

    Patchy
    Drizzle and
    Patchy Dense
    Fog

  • Wednesday Night

    Wednesday Night: Patchy fog after 7pm. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 7 mph becoming light and variable after midnight.

    Low: 54 °F

    Patchy Fog

  • Christmas Day

    Christmas Day: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming north around 5 mph in the morning.

    High: 63 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 56. East wind 5 to 9 mph becoming south after midnight.

    Low: 56 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 69.

    High: 69 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 67.

    High: 67 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Widespread dense fog, mainly before 4am. Otherwise, mostly cloudy, with a low around 43. East wind around 5 mph.
Wednesday
Patchy drizzle before 2pm, then patchy drizzle after 4pm. Patchy dense fog before 9am. Otherwise, cloudy, with a high near 59. East wind 6 to 8 mph becoming southeast in the afternoon.
Wednesday Night
Patchy fog after 7pm. Otherwise, mostly cloudy, with a low around 54. South wind 5 to 7 mph becoming light and variable after midnight.
Christmas Day
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 63. Calm wind becoming north around 5 mph in the morning.
Thursday Night
Mostly cloudy, with a low around 56. East wind 5 to 9 mph becoming south after midnight.
Friday
Mostly sunny, with a high near 69.
Friday Night
Partly cloudy, with a low around 46.
Saturday
Mostly cloudy, with a high near 67.
Saturday Night
Mostly cloudy, with a low around 45.
Sunday
A 30 percent chance of rain. Mostly cloudy, with a high near 52. Breezy.
Sunday Night
Partly cloudy, with a low around 17.
Monday
Sunny, with a high near 25.
Monday Night
Partly cloudy, with a low around 15.
Tuesday
Partly sunny, with a high near 31.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles SSE Greenville IL
 38.84°N 89.37°W (Elev. 528 ft)
Last Update:
2:46 am CST Dec 24, 2025
Forecast Valid:
3am CST Dec 24, 2025-6pm CST Dec 30, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation